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fix(kiosk): stop HDMI mode detection from perpetuating a bad clone state

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configure_display picked whichever mode was already "active" on the HDMI
output, so if X ever booted cloned to the laptop panel's resolution it
would keep re-confirming that wrong mode forever instead of self-healing
to the display's native mode.
This commit is contained in:
ssmithx 2026-07-01 11:59:21 +00:00
parent f3cbeb2834
commit 6299e91544
1 changed files with 6 additions and 2 deletions
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8
image-recipe/configs/archipelago-kiosk-launcher.sh
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@ -33,14 +33,18 @@ configure_display() {
[ -n "$output" ] || output=$(awk '/ connected/{print $1; exit}' /tmp/archipelago-kiosk-xrandr.txt)
[ -n "$output" ] || return 0
# Pick the EDID-preferred ("+") mode, falling back to the first-listed
# mode (EDID lists native first). Deliberately ignore "*" (currently
# active) — trusting "active" lets a bad clone/mirror state from a
# previous boot perpetuate itself forever instead of self-healing.
mode=$(awk -v out="$output" '
$1 == out { active = 1; next }
active && /^[[:space:]]+[0-9]+x[0-9]+/ {
if ($0 ~ /\*/) { print $1; exit }
if ($0 ~ /\+/ && !preferred) { preferred = $1 }
if (!first) first = $1
}
active && /^[^[:space:]]/ { active = 0 }
END { if (first) print first }
END { if (preferred) print preferred; else if (first) print first }
' /tmp/archipelago-kiosk-xrandr.txt)
[ -n "$mode" ] || mode=1920x1080