SUMMARY In system settings -> power management, screens are set to turn off after 10 minutes. That only happens for two of the plugged in screens , there's one that stays on no matter what. This issue also seems to happen when manually locking the session and waiting 1 minute. STEPS TO REPRODUCE 1. Wait 10 minutes (by default), or lock the session and wait 1 minute. OBSERVED RESULT Two screens are off, one is still on and showing the lockscreen. EXPECTED RESULT All screens are off. SOFTWARE/OS VERSIONS 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-zen1-1-zen (64-bit) Graphics Platform: Wayland Processors: 12 × AMD Ryzen 5 3600 6-Core Processor Memory: 32 GiB of RAM (31.2 GiB usable) Graphics Processor: AMD Radeon RX 5700 XT
Can you paste the output of `kscreen-doctor -o` and also mention which of the screens in the output is the one that experiences the issue?
``` % kscreen-doctor -o Output: 1 DP-1 2e2f447a-1627-4080-8773-7f359c9d9818 enabled connected priority 1 DisplayPort replication source:0 Modes: 1:3840x2160@60*! 2:3840x2160@30 3:2560x1440@60 4:1920x1200@60 5:1920x1080@60 6:1920x1080@60 7:1920x1080@60 8:1600x1200@60 9:1680x1050@60 10:1280x1024@60 11:1440x900@60 12:1280x800@60 13:1280x720@60 14:1280x720@60 15:1024x768@60 16:800x600@60 17:720x480@60 18:720x480@60 19:640x480@60 20:640x480@60 21:640x480@60 22:2560x1600@60 23:3200x1800@60 24:2880x1620@60 25:1600x900@60 26:1368x768@60 Geometry: 1280,0 2195x1235 Scale: 1.75 Rotation: 1 Overscan: 0 Vrr: Never RgbRange: Automatic HDR: disabled Wide Color Gamut: disabled ICC profile: none Color profile source: sRGB Color power preference: prefer efficiency and performance Brightness control: supported, set to 80% and dimming to 100% DDC/CI: allowed Color resolution: automatic (10), range: [8; 16] bits per color Allow EDR: unsupported Output: 2 DP-2 0337c83a-8942-4c76-8b26-cdfa90720bb5 enabled connected priority 3 DisplayPort replication source:0 Modes: 27:1280x1024@60*! 28:1280x800@60 29:1280x720@60 30:1024x768@60 31:800x600@60 32:640x480@60 33:720x400@70 Geometry: 0,105 1280x1024 Scale: 1 Rotation: 1 Overscan: 0 Vrr: incapable RgbRange: Automatic HDR: incapable Wide Color Gamut: incapable ICC profile: none Color profile source: sRGB Color power preference: prefer efficiency and performance Brightness control: supported, set to 100% and dimming to 100% DDC/CI: allowed Color resolution: automatic (10), range: [8; 16] bits per color Allow EDR: unsupported Output: 3 HDMI-A-1 437ca33b-c469-4b0d-ba19-2fff9d237614 enabled connected priority 2 HDMI replication source:0 Modes: 34:1920x1080@60*! 35:1920x1080@60 36:1920x1080@60 37:1920x1080@50 38:1680x1050@60 39:1280x1024@75 40:1280x1024@60 41:1440x900@75 42:1440x900@60 43:1280x800@60 44:1280x720@60 45:1280x720@60 46:1280x720@60 47:1280x720@50 48:1024x768@75 49:1024x768@60 50:800x600@75 51:800x600@60 52:720x576@50 53:720x576@50 54:720x576@50 55:720x480@60 56:720x480@60 57:720x480@60 58:720x480@60 59:720x480@60 60:640x480@75 61:640x480@73 62:640x480@67 63:640x480@60 64:640x480@60 65:640x480@60 66:720x400@70 67:1600x900@60 68:1368x768@60 Geometry: 3475,77 1920x1080 Scale: 1 Rotation: 1 Overscan: 0 Vrr: incapable RgbRange: Automatic HDR: incapable Wide Color Gamut: incapable ICC profile: none Color profile source: sRGB Color power preference: prefer efficiency and performance Brightness control: supported, set to 100% and dimming to 100% DDC/CI: allowed Color resolution: automatic (10), range: [8; 16] bits per color Allow EDR: unsupported ``` The screen that stays on is the last one, HDMI-A-1
Thanks!
Please attach the output of > kscreen-doctor --dpms show while the screen is supposed to be off. > sleep 40; kscreen-doctor --dpms show with a configured display timeout of 30s should do the trick The output of drm_info while it's on, and while it's supposed to be off might also be useful
Here's the output with a delay set to 30 seconds: > % sleep 40; kscreen-doctor --dpms show > dpms mode for screen DP-2: off > dpms mode for screen DP-1: off > dpms mode for screen HDMI-A-1: off Here's the output while the session is locked, with the delay set to 20 seconds: > % sleep 40; kscreen-doctor --dpms show > dpms mode for screen DP-2: off > dpms mode for screen DP-1: off > dpms mode for screen HDMI-A-1: on Oddly enough, now the one problematic screen appears to turn off, but then turn back on. I'll attach the drm_info outputs as files as they're really long
Created attachment 182735 [details] drm_info when every screen is on
Created attachment 182736 [details] drm_info when the screens are supposed to be off but one isn't > sleep 40; drm_info > drm_info-supposed_to_be_off.txt
Created attachment 182737 [details] drm_info when the screens are supposed to be off but one isn't (screen locked version) > sleep 40; drm_info > drm_info-supposed_to_be_off_locked.txt
Alright, that at least rules out a driver bug - if KWin knows the output isn't off, then either powerdevil isn't asking the output to be turned off, or KWin fails to do it somehow. (In reply to Reboot from comment #5) > Oddly enough, now the one problematic screen appears to turn off, but then > turn back on. That might be fixed with https://invent.kde.org/plasma/kwin/-/merge_requests/7868 then. If you could test the MR (or the patch applied on top of 6.4), that would be great, if not, we can wait for 6.4.3.
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Pleased to report I can no longer reproduce this issue on 6.4.3 :)