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[fix] Force software GL for Alacritty on VirGL #149

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[fix] Force software GL for Alacritty on VirGL #149

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24 changes: 24 additions & 0 deletions guest/native-overlay/usr/local/bin/alacritty
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Original file line number Diff line number Diff line change
@@ -0,0 +1,24 @@
#!/bin/bash

# Alacritty's OpenGL path paints an empty transparent surface on Try Omarchy's
# VirGL guest. Force Mesa llvmpipe so Install → Terminal → Alacritty is usable.
# Prefer the pacman binary so this PATH shim never recurses on itself.

real=/usr/bin/alacritty
if [[ ! -x $real ]]; then
echo "alacritty is not installed" >&2
exit 127
fi

cmdline_file=${OMARCHY_ALACRITTY_CMDLINE:-/proc/cmdline}
if [[ -r $cmdline_file ]]; then
read -r -a kernel_options <"$cmdline_file" || true
for kernel_option in "${kernel_options[@]}"; do
if [[ $kernel_option == omarchy.qemu_virgl=1 ]]; then
export LIBGL_ALWAYS_SOFTWARE=1
break
fi
done
fi

exec "$real" "$@"
1 change: 1 addition & 0 deletions guest/scripts/configure-rootfs.sh
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Expand Up @@ -73,6 +73,7 @@ chmod 0755 \
"$root/usr/bin/omarchy-audio-input-set-default" \
"$root/usr/bin/omarchy-screensaver" \
"$root/usr/bin/omarchy-theme-bg-switcher" \
"$root/usr/local/bin/alacritty" \
"$root/usr/local/bin/omarchy-native-audio-bridge" \
"$root/usr/local/bin/omarchy-native-camera-bridge" \
"$root/usr/local/bin/omarchy-native-clipboard-bridge" \
Expand Down
12 changes: 12 additions & 0 deletions guest/tests/verify.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1069,6 +1069,17 @@ def main() -> None:
"native background picker override is executable",
)
check(cursor_restore.stat().st_mode & stat.S_IXUSR != 0, "native cursor restore helper is executable")
alacritty_wrapper = GUEST / "native-overlay/usr/local/bin/alacritty"
alacritty_wrapper_text = read(alacritty_wrapper)
check(alacritty_wrapper.stat().st_mode & stat.S_IXUSR != 0, "Alacritty VirGL wrapper is executable")
check(
'real=/usr/bin/alacritty' in alacritty_wrapper_text
and "export LIBGL_ALWAYS_SOFTWARE=1" in alacritty_wrapper_text
and "omarchy.qemu_virgl=1" in alacritty_wrapper_text
and 'exec "$real" "$@"' in alacritty_wrapper_text
and '"$root/usr/local/bin/alacritty"' in configure,
"Alacritty VirGL wrapper forces software GL onto the pacman binary",
)
check(
"/usr/local/bin/omarchy-native-cursor-restore 2>/dev/null || true"
in read(screensaver_override),
Expand Down Expand Up @@ -1183,6 +1194,7 @@ def main() -> None:
screensaver_override,
background_switcher_override,
cursor_restore,
alacritty_wrapper,
display_sync,
mac_share,
*GUEST.glob("*.sh"),
Expand Down
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