Initial commit — DeckShift v0.1.0
Steam Deck-style gaming mode for Linux + Hyprland. Lineage: Super-Shift-S-Omarchy-Deck-Mode → Omarchy Deck → DeckShift (renamed for distro-portability — distro-agnostic features on the roadmap). Currently targets Omarchy (Arch + Hyprland + SDDM + iwd). Includes: - Press Super+Shift+S to enter Gaming Mode (Gamescope + Steam Big Picture), Super+Shift+R to return to desktop - NVIDIA GSP-aware driver branch selection (legacy nvidia-580xx-utils for Maxwell/Pascal/Volta cards) - AMD support (vulkan-radeon, libvdpau) - Intel support (vulkan-intel, intel-media-driver) with generation-aware performance warning before continuing - Idempotent package installs via Omarchy's omarchy-pkg-add - Optional Xbox Bluetooth controller support (xpadneo-dkms) - Settings TUI launched from Walker (deckshift-settings) for adjusting monitor / GPU / resolution / refresh rate after install: * Buffered changes — explicit Save and exit / Cancel * hyprctl-based mode detection with monitor-capability filtering * Save-time warning if values exceed monitor capability * Esc returns to main menu without crashing - Multilib check removed (Omarchy ships with multilib enabled) Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
28allday
Executable
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#!/bin/bash
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# ==============================================================================
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# deckshift-settings — Gaming Mode settings TUI
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#
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# Launched from Walker (Super+Space → "DeckShift Settings"). Lets the user
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# adjust which monitor, GPU, resolution, and refresh rate Gaming Mode uses,
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# without editing ~/.config/environment.d/gamescope-session-plus.conf by hand.
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#
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# Selections are buffered in memory — nothing is written until the user picks
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# "Save and exit". "Cancel" discards changes. The on-disk file is rewritten in
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# place, preserving any keys the TUI doesn't manage (ADAPTIVE_SYNC, HDR, etc).
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# ==============================================================================
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# -u (nounset) trips on empty associative arrays even with `${arr[k]+x}`
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# guards, so we run with -eo pipefail only.
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set -eo pipefail
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CONF="${HOME}/.config/environment.d/gamescope-session-plus.conf"
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# Theme — match the "unsaved changes" amber across all gum prompts so the
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# cursor / highlighted line is readable regardless of terminal palette.
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ACCENT=214 # amber, also used for unsaved-changes label
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HEADER_COLOR=212
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export GUM_CHOOSE_CURSOR_FOREGROUND="$ACCENT"
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export GUM_CHOOSE_SELECTED_FOREGROUND="$ACCENT"
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export GUM_CHOOSE_HEADER_FOREGROUND="$HEADER_COLOR"
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export GUM_CONFIRM_SELECTED_FOREGROUND="$ACCENT"
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export GUM_CONFIRM_PROMPT_FOREGROUND="$HEADER_COLOR"
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export GUM_INPUT_PROMPT_FOREGROUND="$ACCENT"
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# Buffered pending changes — flushed only on Save and exit.
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# PENDING_SET[KEY]=VALUE → write KEY=VALUE
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# PENDING_UNSET[KEY]=1 → delete KEY from the conf
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declare -A PENDING_SET
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declare -A PENDING_UNSET
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die() { echo "[!] $*" >&2; exit 1; }
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command -v gum >/dev/null || die "gum is required (install with: omarchy-pkg-add gum)"
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# Wrappers — gum choose / gum input exit non-zero on Escape/Ctrl-C, which
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# would trip `set -e` and kill the TUI. These swallow that so a cancelled
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# prompt simply returns an empty string, letting the caller treat it as
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# "user backed out" and return to the main menu.
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gchoose() { gum choose "$@" || true; }
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ginput() { gum input "$@" || true; }
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command -v lspci >/dev/null || die "lspci is required"
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command -v jq >/dev/null || die "jq is required (install with: omarchy-pkg-add jq)"
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command -v hyprctl >/dev/null || die "hyprctl is required (this TUI is for Hyprland sessions)"
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# ------------------------------------------------------------------------------
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# Conf helpers — read straight from disk; writes go through pending_* below so
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# nothing hits the file until the user explicitly saves.
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# ------------------------------------------------------------------------------
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conf_get() {
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local key="$1"
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[[ -f "$CONF" ]] || return 0
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# awk (not grep|tail|cut) so a missing key yields empty + exit 0 rather than
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# tripping pipefail and killing the TUI under `set -e`.
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awk -F= -v k="$key" '$1==k { sub(/^[^=]*=/,""); v=$0 } END { print v }' "$CONF"
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}
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# Effective value = pending change if any, else what's on disk. Used by the
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# UI to show what the conf will look like after Save.
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effective() {
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local key="$1"
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if [[ -n "${PENDING_UNSET[$key]:-}" ]]; then
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echo ""
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elif [[ -n "${PENDING_SET[$key]+x}" ]]; then
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echo "${PENDING_SET[$key]}"
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else
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conf_get "$key"
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fi
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}
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pending_set() {
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local key="$1" value="$2"
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PENDING_SET["$key"]="$value"
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unset 'PENDING_UNSET[$key]'
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}
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pending_unset() {
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local key="$1"
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PENDING_UNSET["$key"]=1
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unset 'PENDING_SET[$key]'
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}
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has_pending_changes() {
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(( ${#PENDING_SET[@]} > 0 )) || (( ${#PENDING_UNSET[@]} > 0 ))
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}
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# Write all buffered changes to disk in one pass. Preserves the order/contents
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# of keys we don't manage.
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flush_pending() {
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has_pending_changes || return 0
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mkdir -p "$(dirname "$CONF")"
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touch "$CONF"
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for key in "${!PENDING_UNSET[@]}"; do
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sed -i "/^${key}=/d" "$CONF"
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done
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for key in "${!PENDING_SET[@]}"; do
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local value="${PENDING_SET[$key]}"
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if grep -qE "^${key}=" "$CONF"; then
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sed -i "s|^${key}=.*|${key}=${value}|" "$CONF"
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else
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echo "${key}=${value}" >> "$CONF"
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fi
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done
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}
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# ------------------------------------------------------------------------------
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# Hardware detection
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# ------------------------------------------------------------------------------
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# Cached hyprctl data — populated by refresh_monitor_data, used by all menus.
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# HYPR_MODES = newline-separated WIDTHxHEIGHT@RATEHz strings for the active
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# connector. HYPR_NATIVE / HYPR_MAX_REFRESH = monitor's max capability.
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HYPR_MODES=""
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HYPR_NATIVE=""
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HYPR_MAX_REFRESH=""
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HYPR_ACTIVE_CONNECTOR=""
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# List every connected monitor as "NAME|WIDTHxHEIGHT". hyprctl monitors all
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# returns every connected output (enabled or not), which is what we want.
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list_connected_monitors() {
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hyprctl monitors all -j 2>/dev/null \
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| jq -r '.[] | select(.disabled==false or .disabled==true) | "\(.name)|\((.availableModes // [])[0] // "" | sub("@.*"; ""))"'
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}
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# Refresh the cached mode data for the connector we're targeting. Falls back
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# to the first connected output if no OUTPUT_CONNECTOR is set in the buffer/conf.
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refresh_monitor_data() {
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local target
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target=$(effective OUTPUT_CONNECTOR)
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if [[ -z "$target" ]]; then
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target=$(hyprctl monitors -j 2>/dev/null | jq -r '.[0].name // empty')
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fi
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HYPR_ACTIVE_CONNECTOR="$target"
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if [[ -z "$target" ]]; then
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HYPR_MODES=""; HYPR_NATIVE=""; HYPR_MAX_REFRESH=""
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return
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fi
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HYPR_MODES=$(hyprctl monitors all -j 2>/dev/null \
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| jq -r --arg n "$target" '.[] | select(.name==$n) | .availableModes[]?')
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HYPR_NATIVE=$(echo "$HYPR_MODES" | head -1 | sed 's/@.*//')
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# Max refresh AT NATIVE resolution, rounded to integer Hz for display.
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# (Reporting the max across all modes would mislead — e.g. a 4K@60 panel
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# might show 100Hz at 1024x768, which isn't useful info for Gaming Mode.)
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HYPR_MAX_REFRESH=$(echo "$HYPR_MODES" \
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| grep "^${HYPR_NATIVE}@" \
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| awk -F'@' '{ sub(/Hz$/,"",$2); printf "%d\n", $2 + 0.5 }' \
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| sort -un | tail -1)
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}
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# Unique list of resolutions supported by the active connector, ordered
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# largest first.
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list_supported_resolutions() {
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echo "$HYPR_MODES" | sed 's/@.*//' | awk '!seen[$0]++'
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}
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# Refresh rates supported at a given resolution (or all rates if no res given).
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# Output is integer Hz, deduplicated (60.00 and 59.94 both round to 60).
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list_supported_refresh_rates() {
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local res="${1:-}"
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if [[ -n "$res" ]]; then
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echo "$HYPR_MODES" | grep -E "^${res}@"
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else
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echo "$HYPR_MODES"
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fi | awk -F'@' '{ sub(/Hz$/,"",$2); printf "%d\n", $2 + 0.5 }' \
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| sort -un
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}
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# Validation — does the requested mode fit the monitor's reported limits?
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resolution_supported() {
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local w="$1" h="$2"
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[[ -z "$HYPR_NATIVE" ]] && return 0 # unknown → don't block
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local nw=${HYPR_NATIVE%%x*}
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local nh=${HYPR_NATIVE##*x}
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(( w <= nw )) && (( h <= nh ))
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}
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refresh_rate_supported() {
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local rate="$1"
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[[ -z "$HYPR_MODES" ]] && return 0
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echo "$HYPR_MODES" \
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| awk -F'@' -v r="$rate" '{ sub(/Hz$/,"",$2); if (int($2+0.5) == int(r+0.5)) found=1 } END { exit !found }'
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}
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list_gpus() {
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local pci_slot vendor_dev kind label
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/usr/bin/lspci -nn | grep -iE 'vga|3d|display' | while read -r line; do
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pci_slot=$(awk '{print $1}' <<<"$line")
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vendor_dev=$(grep -oP '\[\K[0-9a-fA-F]{4}:[0-9a-fA-F]{4}(?=\])' <<<"$line" | tail -1)
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if grep -qi nvidia <<<"$line"; then
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kind="nvidia"
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elif grep -qiE 'amd|advanced micro|radeon' <<<"$line"; then
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kind="amd"
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elif grep -qi intel <<<"$line"; then
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kind="intel"
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else
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kind="other"
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fi
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label=$(sed -E 's/.*: //; s/ \[[0-9a-f:]+\] \(rev [0-9a-f]+\)$//; s/ \[[0-9a-f:]+\]$//' <<<"$line")
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echo "${pci_slot}|${vendor_dev}|${kind}|${label}"
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done
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}
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# ------------------------------------------------------------------------------
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# Display — show current/effective values, marking pending edits.
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# ------------------------------------------------------------------------------
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show_state() {
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local connector width height refresh vk_adapter dri_prime
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connector=$(effective OUTPUT_CONNECTOR)
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width=$(effective SCREEN_WIDTH)
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height=$(effective SCREEN_HEIGHT)
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refresh=$(effective CUSTOM_REFRESH_RATES)
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vk_adapter=$(effective VULKAN_ADAPTER)
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dri_prime=$(effective DRI_PRIME)
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local pending_label=""
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has_pending_changes && pending_label=" $(gum style --foreground 214 '(unsaved changes)')"
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local monitor_label="${connector:-<auto>}"
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if [[ -n "$HYPR_ACTIVE_CONNECTOR" && -n "$HYPR_NATIVE" ]]; then
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monitor_label="${monitor_label} (max ${HYPR_NATIVE} @ ${HYPR_MAX_REFRESH:-?}Hz)"
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fi
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cat <<EOF
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Gaming Mode display settings${pending_label}:
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Monitor : ${monitor_label}
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Resolution : ${width:-?}x${height:-?}
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Refresh rate : ${refresh:-<auto>} Hz
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GPU (NVIDIA) : ${vk_adapter:-<not set>}
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GPU (AMD) : ${dri_prime:-<not set>}
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Config file : ${CONF}
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EOF
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}
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# ------------------------------------------------------------------------------
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# Setters — each one updates the in-memory pending buffer only.
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# ------------------------------------------------------------------------------
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choose_monitor() {
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local choice connector
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mapfile -t connected < <(list_connected_monitors)
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local -a labels=()
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for entry in "${connected[@]}"; do
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labels+=("$entry")
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done
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labels+=("(clear / let gamescope auto-pick)")
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if (( ${#connected[@]} == 0 )); then
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gum confirm "No connected monitors detected. Set OUTPUT_CONNECTOR manually?" || return 0
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connector=$(ginput --prompt "Connector (e.g. DP-1, HDMI-A-1): ")
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[[ -z "$connector" ]] && return 0
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pending_set OUTPUT_CONNECTOR "$connector"
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return 0
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fi
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choice=$(printf '%s\n' "${labels[@]}" | gchoose --header "Select monitor for Gaming Mode")
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[[ -z "$choice" ]] && return 0
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if [[ "$choice" == "(clear"* ]]; then
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pending_unset OUTPUT_CONNECTOR
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else
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pending_set OUTPUT_CONNECTOR "${choice%%|*}"
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fi
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}
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choose_resolution() {
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refresh_monitor_data
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local choice w h
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local -a options=()
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# 1. Monitor-supported resolutions (top of the list, always safe)
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if [[ -n "$HYPR_MODES" ]]; then
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while read -r res; do
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[[ -z "$res" ]] && continue
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options+=("$res (supported by ${HYPR_ACTIVE_CONNECTOR})")
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done < <(list_supported_resolutions)
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fi
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# 2. Common presets — mark anything that exceeds the detected max
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local -a presets=("1280x720" "1920x1080" "2560x1440" "3840x2160")
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local -A already_listed=()
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while read -r r; do already_listed["$r"]=1; done < <(list_supported_resolutions)
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for preset in "${presets[@]}"; do
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[[ -n "${already_listed[$preset]:-}" ]] && continue
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local pw=${preset%%x*} ph=${preset##*x}
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if resolution_supported "$pw" "$ph"; then
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options+=("$preset (preset)")
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else
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options+=("$preset (preset — [unsupported by monitor])")
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fi
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done
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options+=("Custom…")
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choice=$(printf '%s\n' "${options[@]}" | gchoose --header "Select launch resolution (max: ${HYPR_NATIVE:-unknown})")
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[[ -z "$choice" ]] && return 0
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if [[ "$choice" == "Custom…" ]]; then
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w=$(ginput --prompt "Width: " --placeholder "2560")
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h=$(ginput --prompt "Height: " --placeholder "1440")
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else
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local mode=${choice%% *}
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w=${mode%%x*}
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h=${mode##*x}
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fi
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[[ -z "$w" || -z "$h" ]] && return 0
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pending_set SCREEN_WIDTH "$w"
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pending_set SCREEN_HEIGHT "$h"
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}
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choose_refresh_rate() {
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refresh_monitor_data
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local choice rate
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# Use the buffered/saved resolution to filter rates if set, otherwise
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# show all rates this monitor supports across any resolution.
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local current_w current_h res_filter=""
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current_w=$(effective SCREEN_WIDTH)
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current_h=$(effective SCREEN_HEIGHT)
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if [[ -n "$current_w" && -n "$current_h" ]]; then
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res_filter="${current_w}x${current_h}"
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fi
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local -a options=()
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local -A supported_set=()
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# 1. Rates supported at the active resolution (top of list)
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while read -r r; do
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[[ -z "$r" ]] && continue
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supported_set["$r"]=1
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if [[ -n "$res_filter" ]]; then
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options+=("$r (supported at ${res_filter})")
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else
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options+=("$r (supported by ${HYPR_ACTIVE_CONNECTOR})")
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fi
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done < <(list_supported_refresh_rates "$res_filter")
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# 2. Common presets — mark unsupported
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local -a presets=(60 75 100 120 144 165 240)
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for preset in "${presets[@]}"; do
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[[ -n "${supported_set[$preset]:-}" ]] && continue
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if refresh_rate_supported "$preset"; then
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options+=("$preset (preset)")
|
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else
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options+=("$preset (preset — [unsupported by monitor])")
|
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fi
|
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done
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options+=("Custom…")
|
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choice=$(printf '%s\n' "${options[@]}" | gchoose --header "Select refresh rate (Hz, max: ${HYPR_MAX_REFRESH:-unknown})")
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[[ -z "$choice" ]] && return 0
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if [[ "$choice" == "Custom…" ]]; then
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rate=$(ginput --prompt "Rate (Hz): " --placeholder "144")
|
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else
|
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rate=${choice%% *}
|
||||
fi
|
||||
[[ -z "$rate" ]] && return 0
|
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pending_set CUSTOM_REFRESH_RATES "$rate"
|
||||
}
|
||||
|
||||
choose_gpu() {
|
||||
local choice
|
||||
mapfile -t gpus < <(list_gpus)
|
||||
if (( ${#gpus[@]} == 0 )); then
|
||||
gum style --foreground 196 "No GPUs detected via lspci"
|
||||
return 1
|
||||
fi
|
||||
local -a labels=()
|
||||
for entry in "${gpus[@]}"; do
|
||||
IFS='|' read -r slot vendor_dev kind label <<<"$entry"
|
||||
labels+=("[$kind] $label ($vendor_dev @ $slot)")
|
||||
done
|
||||
labels+=("(clear GPU override — let system decide)")
|
||||
choice=$(printf '%s\n' "${labels[@]}" | gchoose --header "Select GPU for Gaming Mode")
|
||||
[[ -z "$choice" ]] && return 0
|
||||
if [[ "$choice" == "(clear"* ]]; then
|
||||
pending_unset VULKAN_ADAPTER
|
||||
pending_unset DRI_PRIME
|
||||
pending_unset GBM_BACKEND
|
||||
return 0
|
||||
fi
|
||||
local idx=0 selected=""
|
||||
for label in "${labels[@]}"; do
|
||||
if [[ "$label" == "$choice" ]]; then
|
||||
selected="${gpus[$idx]}"
|
||||
break
|
||||
fi
|
||||
idx=$((idx + 1))
|
||||
done
|
||||
IFS='|' read -r slot vendor_dev kind label <<<"$selected"
|
||||
case "$kind" in
|
||||
nvidia)
|
||||
pending_set VULKAN_ADAPTER "$vendor_dev"
|
||||
pending_set GBM_BACKEND "nvidia-drm"
|
||||
pending_unset DRI_PRIME
|
||||
;;
|
||||
amd|intel|other)
|
||||
local dri_tag="pci-$(echo "$slot" | sed 's/[:.]/_/g')"
|
||||
[[ "$dri_tag" != pci-0000* ]] && dri_tag="pci-0000_${dri_tag#pci-}"
|
||||
pending_set DRI_PRIME "$dri_tag"
|
||||
pending_unset VULKAN_ADAPTER
|
||||
pending_unset GBM_BACKEND
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
# Pre-save validation. Compares the about-to-be-saved values against the
|
||||
# active monitor's reported capabilities (via hyprctl) and asks for explicit
|
||||
# confirmation if anything looks risky. Returns 0 = ok to save, 1 = cancelled.
|
||||
confirm_risky_save() {
|
||||
refresh_monitor_data
|
||||
[[ -z "$HYPR_MODES" ]] && return 0
|
||||
|
||||
local w h rate
|
||||
w=$(effective SCREEN_WIDTH)
|
||||
h=$(effective SCREEN_HEIGHT)
|
||||
rate=$(effective CUSTOM_REFRESH_RATES)
|
||||
|
||||
local -a warnings=()
|
||||
if [[ -n "$w" && -n "$h" ]] && ! resolution_supported "$w" "$h"; then
|
||||
warnings+=("• Resolution ${w}x${h} exceeds detected monitor max ${HYPR_NATIVE}")
|
||||
fi
|
||||
if [[ -n "$rate" ]] && ! refresh_rate_supported "$rate"; then
|
||||
warnings+=("• Refresh rate ${rate}Hz is not in the monitor's supported list (max: ${HYPR_MAX_REFRESH:-?}Hz)")
|
||||
fi
|
||||
|
||||
(( ${#warnings[@]} == 0 )) && return 0
|
||||
|
||||
clear
|
||||
gum style --foreground 196 --bold "Warning — selected values may not work:"
|
||||
echo ""
|
||||
printf ' %s\n' "${warnings[@]}"
|
||||
echo ""
|
||||
gum style --foreground 244 "If Gaming Mode shows a black screen, press Super+Shift+R to return to desktop."
|
||||
echo ""
|
||||
gum confirm "Save anyway?" --default=false
|
||||
}
|
||||
|
||||
# ------------------------------------------------------------------------------
|
||||
# Main loop — buffer until Save and exit / Cancel.
|
||||
# ------------------------------------------------------------------------------
|
||||
|
||||
main() {
|
||||
while true; do
|
||||
refresh_monitor_data
|
||||
clear
|
||||
gum style \
|
||||
--border double --margin "1" --padding "1 4" --border-foreground 212 \
|
||||
"DECKSHIFT — Gaming Mode Settings"
|
||||
show_state
|
||||
echo ""
|
||||
|
||||
local save_label="Save and exit"
|
||||
local cancel_label="Cancel (exit)"
|
||||
if has_pending_changes; then
|
||||
save_label="Save and exit ★"
|
||||
cancel_label="Discard changes and exit"
|
||||
fi
|
||||
|
||||
local action
|
||||
action=$(gchoose --header "What do you want to change?" \
|
||||
"Monitor" \
|
||||
"Resolution" \
|
||||
"Refresh rate" \
|
||||
"GPU" \
|
||||
"$save_label" \
|
||||
"$cancel_label")
|
||||
case "$action" in
|
||||
"Monitor") choose_monitor ;;
|
||||
"Resolution") choose_resolution ;;
|
||||
"Refresh rate") choose_refresh_rate ;;
|
||||
"GPU") choose_gpu ;;
|
||||
"Save and exit"*)
|
||||
if ! confirm_risky_save; then
|
||||
continue
|
||||
fi
|
||||
flush_pending
|
||||
clear
|
||||
gum style --foreground 212 "Settings saved to $CONF"
|
||||
gum style --foreground 244 "Changes apply next time you enter Gaming Mode (Super+Shift+S)."
|
||||
sleep 1
|
||||
return 0
|
||||
;;
|
||||
"Cancel (exit)"|"Discard changes and exit")
|
||||
if has_pending_changes; then
|
||||
gum confirm "Discard unsaved changes?" --default=true || continue
|
||||
fi
|
||||
clear
|
||||
gum style --foreground 244 "No changes saved."
|
||||
sleep 1
|
||||
return 0
|
||||
;;
|
||||
"")
|
||||
# Esc / Ctrl-C on the main menu — stay on main rather than exit.
|
||||
# User must pick "Cancel" or "Save and exit" explicitly to leave.
|
||||
continue
|
||||
;;
|
||||
esac
|
||||
done
|
||||
}
|
||||
|
||||
main "$@"
|
||||
Reference in New Issue
Block a user