From f2361469e41454c573200c562b9d89481205f76b Mon Sep 17 00:00:00 2001 From: Dirga Yuza Date: Fri, 8 May 2026 07:10:40 +0700 Subject: [PATCH] hwdb: add force-release to Nitro AN515-58 backlight keys This fixes an incomplete mapping introduced in PR #39769 for the Acer Nitro 5 AN515-58. The previous PR mapped the physical keyboard backlight keys (scancodes `0xef` and `0xf0`) to `kbdillumup` and `kbdillumdown` to prevent them from dropping screen brightness. However, the embedded controller on this Acer model only emits "make" (press) scancodes and fails to emit "break" (release) scancodes for these specific keys. Without a release event, the input subsystem registers the keys as continously held down (auto-repeat). In desktop environments like KDE Plasma, pressing the key once causes the brightness UI slider to get stuck in an infinite adjustment loop. This issue is previously unnoticed as this model did not expose any keyboard backlight control. The fix is done by prepending the `!` (force-release) flag to the keycodes. This instructs `evdev` to synthesize a key release event. The fix is verified locally on an Acer Nitro AN515-58. `evtest` now correctly reports `value 1` immediately followed by `value` 0, and KDE Plasma brightness OSD no longer gets stuck. Signed-off-by: Dirga Yuza --- hwdb.d/60-keyboard.hwdb | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hwdb.d/60-keyboard.hwdb b/hwdb.d/60-keyboard.hwdb index 8c1605930d..ebc08560fe 100644 --- a/hwdb.d/60-keyboard.hwdb +++ b/hwdb.d/60-keyboard.hwdb @@ -237,8 +237,8 @@ evdev:atkbd:dmi:bvn*:bvr*:bd*:svnAcer*:pnNitro*AN*515-47:pvr* # Nitro AN515-58 evdev:atkbd:dmi:bvn*:bvr*:bd*:svnAcer*:pnNitro*AN*515-58:pvr* - KEYBOARD_KEY_ef=kbdillumup # Fn+F10 - KEYBOARD_KEY_f0=kbdillumdown # Fn+F9 + KEYBOARD_KEY_ef=!kbdillumup # Fn+F10 + KEYBOARD_KEY_f0=!kbdillumdown # Fn+F9 KEYBOARD_KEY_8a=micmute # Microphone mute button KEYBOARD_KEY_55=power