SUMMARY When using Lock then pressing Sleep, waking up from sleep by pressing any key or moving mouse fails. Directly using Sleep then waking up from sleep by pressing any key or by moving mouse works correctly. STEPS TO REPRODUCE 1. Open Application Launcher 2. Click Lock (session becomes locked) 3. Click Sleep (suspends) 4. Press any keyboard key or move mouse OBSERVED RESULT The screen becomes a purple glitch EXPECTED RESULT The login manager should be shown SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 6.3.5 KDE Frameworks Version: 6.14.0 Qt Version: 6.9.1 Kernel Version: 6.14.9-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 4 × AMD A8-7410 APU with AMD Radeon R5 Graphics Memory: 6.7 GiB of RAM Graphics Processor: KABINI ADDITIONAL INFORMATION I think the same bug is present in older versions (not sure how far back), but with screen staying black, rather than becoming a glitch, on other distros that use KDE Plasma, but I hadn't figured out what reliably caused it.
Picture of glitch screen: https://i.postimg.cc/wT8jSGZ6/wake-up-from-sleep-fail.jpg Reproduction of bug and boot process: https://youtu.be/UJN42AYN3o4 Normally when "recovering journal" happens (01:18), "Clearing orphaned inodes" isnt outputted if sleep happened correctly I can't get it to always reproduce whenever, but if it does happen, its always because of locking then sleeping then waking up again
> The screen becomes a purple glitch This is usually GPU-related. I see you listed your GPU as "KABINI". What does that mean?
> I see you listed your GPU as "KABINI". What does that mean? idk, that's just what kinfo said. doing a search suggests its related to AMD, the manufacturer of the CPU and integrated GPU i have > This is usually GPU-related did my graphics just randomly stop working? my device is 10 years old and the CPU and GPU have never been changed or upgraded. would just an internal device clean fix it? or is there something not quite right at the software level?
noticed that Vulkan gave errors in kinfocenter (errors were because of radeon instead of amdgpu being used, checked using lsmod). fixed that by changing kernel boot options to include amdgpu.enable_gpu=1 amdgpu.si_support=1 radeon.si_support=0 amdgpu.cik_support=1 radeon.cik_support=0 , running mkinitcpio -P then rebooting. also installed some optional drivers (lib32-mesa, lib32-vulkan-radeon, lib32-vulkan-mesa-layers) before there was a little glitchyness for a few seconds when logging in normally and that no longer happens. i'm guessing the wake from sleep glitchyness is also because of Vulkan not being used i'll try reproducing the bug. it didnt happen all the time, but was always same set of events that lead to the bug.
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kinfo now shows Operating System: Arch Linux KDE Plasma Version: 6.4.0 KDE Frameworks Version: 6.15.0 Qt Version: 6.9.1 Kernel Version: 6.15.2-arch1-1 (64-bit) Graphics Platform: Wayland Processors: 4 × AMD A8-7410 APU with AMD Radeon R5 Graphics Memory: 8 GiB of RAM (6.7 GiB usable) Graphics Processor: AMD Radeon R5 Graphics I've not encountered the bug after altering my kernel boot options so that the amdgpu graphics model (instead of radeon graphics module) is used. check using lsmod. amdgpu model has Vulkan support, radeon module does not. in https://wiki.archlinux.org/title/Xorg#Driver_installation there is a table of graphics driver features. I believe ATI in the AMD section refers to radeon. Relevant packages that were explicitly installed: base 3-2 base-devel 1-2 efibootmgr 18-3 intel-media-driver 25.2.3-1 kwayland-integration 6.4.0-1 libva-intel-driver 2.4.1-5 linux 6.15.3.arch1-1 linux-firmware 20250613.12fe085f-6 vulkan-intel 1:25.1.4-1 vulkan-nouveau 1:25.1.4-1 vulkan-radeon 1:25.1.4-1 xf86-video-amdgpu 23.0.0-2 xf86-video-ati 1:22.0.0-2 xf86-video-nouveau 1.0.18-1 xf86-video-vmware 13.4.0-4 xorg-xinit 1.4.4-1 Other relevant packages that are installed: mesa 1:25.1.4-1 amd-ucode 20250613.12fe085f-6 Is there any other information I need to provide?