https://bugs.kde.org/show_bug.cgi?id=497050
Bug ID: 497050
Summary: Using NumLock in Plasma Wayland sometimes causes
gamescope to think Meta key is held down
Classification: Applications
Product: systemsettings
Version: 6.2.4
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: kcm_keyboard
Assignee: plasma-b...@kde.org
Reporter: matthew.schwa...@linux.dev
CC: butir...@gmail.com, duha.b...@gmail.com,
natalie_clar...@yahoo.de
Target Milestone: ---
SUMMARY
Under Plasma 6.2.4 Wayland and using gamescope's wayland backend, enabling the
NumLock key on a physical keyboard will cause gamescope to think that the
NumKey's pressed state is a Meta key. This causes an issue when trying to use
gamescope's shortcut for fullscreening a window, Meta + F, instead causing the
hotkey to be triggered only by pressing the F key without the Meta key.
Disabling NumLock has a chance of either making Meta + F work correctly again,
or totally killing keyboard hotkeys in gamescope until re-enabling NumLock.
I tested this under Gnome (Wayland) to try and narrow down the source of this
issue, but so far every reporter (including myself) has only seen this happen
under Plasma 6 Wayland.
Please let me know if there are any debugging logs that would be useful to
include. I tried running `WAYLAND_DEBUG=1 gamescope -- vkcube` to see if I
could get a debugging log to attach, but prefixing WAYLAND_DEBUG like that
seems to totally kill hotkey usage in gamescope.
STEPS TO REPRODUCE
I would recommend building gamescope from the latest git commit for this, and
starting with NumLock on.
1. On Plasma 6.2.4 Wayland, launch gamescope from a terminal with `gamescope
-- vkcube`
2. Once gamescope launches, try using Meta + F a few times
3. If this works, try pressing F a few times and see if that also triggers the
fullscreen hotkey correctly
This issue is a bit spurious, which makes narrowing down the potential causes
more difficult. Some boots I've had the hotkey work perfectly even with NumLock
enabled from boot, other boots I have had this issue happen to me on the first
launch of gamescope.
OBSERVED RESULT
Meta + F and just the F key trigger the same fullscreen hotkey in gamescope
EXPECTED RESULT
Only Meta + F should trigger the fullscreen hotkey in gamescope
SOFTWARE/OS VERSIONS
Operating System: CachyOS Linux
KDE Plasma Version: 6.2.4
KDE Frameworks Version: 6.8.0
Qt Version: 6.8.1
Kernel Version: 6.13.0-rc1-1-cachyos-rc (64-bit)
Graphics Platform: Wayland
Processors: 64 × AMD Ryzen Threadripper 7970X 32-Cores
Memory: 62.3 GiB of RAM
Graphics Processor: AMD Radeon RX 7900 XTX
ADDITIONAL INFORMATION
Link to original report: https://github.com/ValveSoftware/gamescope/issues/1637
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