v0.1.11 — Multi-monitor handling: disable an auxiliary monitor before Gaming Mode
Reported on a Framework Desktop (AMD AI MAX 380) + Gigabyte M27Q +
LG DualUp setup: with both monitors attached, gamescope would either
land on the wrong screen or refuse to start, and writing
OUTPUT_CONNECTOR=DP-X alone wasn't enough to fix it. The workaround
shipped by the user was to manually patch /usr/share/gamescope-session-plus
to disable the other monitor before launching gamescope.
DeckShift now handles this natively, without touching the
gamescope-session-plus script (which is ChimeraOS's, not ours):
- New env var OUTPUT_CONNECTOR_TO_DISABLE (single connector or
comma list) written to ~/.config/environment.d/gamescope-session-plus.conf
alongside the other display keys.
- switch-to-gaming reads it and runs `hyprctl keyword monitor X,disable`
for each listed connector BEFORE the SDDM restart, while Hyprland is
still alive (hyprctl needs a live IPC socket). The disable is
runtime-only — Hyprland's static config isn't touched — so when the
user returns from Gaming Mode the new Hyprland reads its config fresh
and the monitor comes back automatically. No re-enable step needed.
- Settings TUI exposes this as a "Hide monitor" main-menu item. The
picker lists every connected monitor EXCEPT the gaming one (so a
user can't accidentally pick the same connector they just set as
OUTPUT_CONNECTOR) and includes a "(clear)" entry.
Also fixes a latent bug in v0.1.10's config-path shortening:
${CONF/#$HOME/~} was supposed to render the conf path with ~ but
bash applies tilde-expansion to the replacement side, re-expanding ~
to $HOME and making the substitution a no-op. Escaped as \~ now.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
28allday
co-authored by
Claude Opus 4.7
Claude Opus 4.7
parent
aaa2f3d768
commit
52c883b780
+54
-7
@@ -307,7 +307,7 @@ list_gpus() {
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# ------------------------------------------------------------------------------
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show_state() {
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local connector width height refresh vk_adapter dri_prime prime_offload mesa_vk_select
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local connector width height refresh vk_adapter dri_prime prime_offload mesa_vk_select disable_connector
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connector=$(effective OUTPUT_CONNECTOR)
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width=$(effective SCREEN_WIDTH)
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height=$(effective SCREEN_HEIGHT)
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@@ -322,6 +322,7 @@ show_state() {
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dri_prime=$(effective DRI_PRIME)
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prime_offload=$(effective __NV_PRIME_RENDER_OFFLOAD)
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mesa_vk_select=$(effective MESA_VK_DEVICE_SELECT)
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disable_connector=$(effective OUTPUT_CONNECTOR_TO_DISABLE)
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# Single GPU-mode line — shows the active mode rather than half-empty rows,
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# since the modes are mutually exclusive. AMD hybrid is identified by both
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@@ -354,7 +355,7 @@ show_state() {
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fi
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# Replace $HOME with ~ so the config path fits the panel column.
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local conf_display="${CONF/#$HOME/~}"
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local conf_display="${CONF/#$HOME/\~}"
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cat <<EOF
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Gaming Mode display settings${pending_label}
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@@ -363,6 +364,7 @@ Gaming Mode display settings${pending_label}
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Resolution : ${resolution_label}
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Refresh rate : ${refresh:-<auto>} Hz
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GPU mode : ${gpu_mode}
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Hide monitor : ${disable_connector:-<none>}
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Config file : ${conf_display}
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EOF
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@@ -396,6 +398,49 @@ choose_monitor() {
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fi
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}
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# choose_monitor_to_disable — picks a connector to physically disable (via
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# `hyprctl keyword monitor X,disable`) before Gaming Mode launches.
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#
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# Why this exists: with multiple monitors connected, gamescope-session-plus
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# can't reliably target a single output via OUTPUT_CONNECTOR alone — on some
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# setups it picks the wrong screen, on others it fails to start at all
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# (reported on a Framework Desktop + LG DualUp + Gigabyte M27Q setup).
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# Disabling the auxiliary monitor right before SDDM restart guarantees
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# gamescope only sees the gaming display.
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#
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# The disable is runtime-only (hyprctl keyword, not a config edit), so when
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# the user returns from Gaming Mode the fresh Hyprland reads its static
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# config and the monitor comes back automatically — no re-enable step needed.
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choose_monitor_to_disable() {
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local choice gaming_monitor
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gaming_monitor=$(effective OUTPUT_CONNECTOR)
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mapfile -t connected < <(list_connected_monitors)
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local -a labels=()
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local entry conn
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for entry in "${connected[@]}"; do
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conn="${entry%%|*}"
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# Exclude the gaming monitor — disabling it would be self-defeating.
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[[ "$conn" == "$gaming_monitor" ]] && continue
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labels+=("$entry")
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done
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labels+=("(clear / don't hide any monitor)")
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if (( ${#labels[@]} == 1 )); then
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gum confirm "Only the gaming monitor is connected. Set a connector to disable manually?" || return 0
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local connector
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connector=$(ginput --prompt "Connector to disable (e.g. HDMI-A-1): ")
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[[ -z "$connector" ]] && return 0
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pending_set OUTPUT_CONNECTOR_TO_DISABLE "$connector"
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return 0
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fi
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choice=$(cmenu "Select monitor to disable while gaming" "${labels[@]}")
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[[ -z "$choice" ]] && return 0
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if [[ "$choice" == "(clear"* ]]; then
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pending_unset OUTPUT_CONNECTOR_TO_DISABLE
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else
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pending_set OUTPUT_CONNECTOR_TO_DISABLE "${choice%%|*}"
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fi
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}
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choose_resolution() {
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refresh_monitor_data
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local choice w h
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@@ -699,13 +744,15 @@ main() {
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"Resolution" \
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"Refresh rate" \
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"GPU" \
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"Hide monitor" \
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"$save_label" \
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"$cancel_label")
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case "$action" in
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"Monitor") choose_monitor ;;
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"Resolution") choose_resolution ;;
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"Refresh rate") choose_refresh_rate ;;
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"GPU") choose_gpu ;;
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"Monitor") choose_monitor ;;
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"Resolution") choose_resolution ;;
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"Refresh rate") choose_refresh_rate ;;
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"GPU") choose_gpu ;;
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"Hide monitor") choose_monitor_to_disable ;;
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"Save and exit"*)
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if ! confirm_risky_save; then
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continue
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@@ -713,7 +760,7 @@ main() {
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flush_pending
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clear
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echo ""
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gum style --foreground 212 "Settings saved to ${CONF/#$HOME/~}" | pad_block
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gum style --foreground 212 "Settings saved to ${CONF/#$HOME/\~}" | pad_block
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gum style --foreground 244 "Changes apply next time you enter Gaming Mode (Super+Shift+S)." | pad_block
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sleep 1
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return 0
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