https://bugs.kde.org/show_bug.cgi?id=503385
Bug ID: 503385
Summary: enabling HDR for projector screen results in system
freeze
Classification: Plasma
Product: kwin
Version: 6.3.4
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: colour-management
Assignee: kwin-bugs-n...@kde.org
Reporter: florian.geisser.perso...@gmail.com
Target Milestone: ---
SUMMARY
When trying to enable HDR for my projector screen the system freezes for 1-2
minutes before resetting the configuration to the default again. Inspecting
journalctl there are hundreds of lines of
```
kwin_wayland[4108]: kwin_scene_opengl: 0x502: GL_INVALID_OPERATION error
generated. <image> and <target> are incompatible
kwin_scene_opengl: Invalid framebuffer status:
"GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT"
```
with an occasional `kwin_wayland_drm: Checking test buffer failed!` in-between.
I can reproduce this behaviour to 100%.
STEPS TO REPRODUCE
0. Open Display Configuration
1. check "Enable HDR" for the projector display
2. Click Apply
OBSERVED RESULT
system freezes for 1-2 minutes before reverting the configuration.
EXPECTED RESULT
HDR is enabled.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.3.4
KDE Frameworks Version: 6.13.0
Qt Version: 6.9.0
Kernel Version: 6.14.3-arch1-1 (64-bit)
Graphics Platform: Wayland
Graphics Processor: NVIDIA GeForce RTX 4070 Ti SUPER
ADDITIONAL INFORMATION
nvidia driver version: 570.144
I've had this issue since I first tried to enable HDR last year in July, so
it's not related to a new driver update or software update. HDR worked before
when running Windows.
I have a 2 monitor, 1 projector, 1 receiver setup:
projector: BENQ TK850
connected via HDMI to
receiver: Denon AVR-X1700H
which is connected via HDMI to my desktop PC.
My two other monitors are connected via display port to my PC.
The display name shown in the display configuration for the screen representing
my projector shows the receiver name.
When I turn off my projector the display is still shown as active, although
resolution changes from 4k to 1920x1080 and the displays are not attached
correctly anymore. Note that I need to leave the display as active, otherwise I
don't get sound via my receiver. Not sure if this is helpful information.
The behaviour is very similar to what the last post of
https://bugs.kde.org/show_bug.cgi?id=486460 described, although I did not set
any specific options (e.g. wideColorGamut).
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