https://bugs.kde.org/show_bug.cgi?id=527328
conde53 <[email protected]> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |[email protected] --- Comment #2 from conde53 <[email protected]> --- I can confirm this problem on opensuse tumbleweed with kde 6.8 my setting is a nvidia quadro K4200 with 2 display connected and using the nouveau driver hpprol2:~ # inxi -Ga Graphics: Device-1: NVIDIA GK104GL [Quadro K4200] driver: nouveau v: kernel non-free: series: 470.xx+ status: legacy (EOL~2025-09-xx) arch: Kepler-2 code: GKxxx process: TSMC 28nm built: 2012-2018 pcie: gen: 2 speed: 5 GT/s lanes: 16 ports: active: DP-2,DVI-I-1 empty: DP-1 bus-ID: 0a:00.0 chip-ID: 10de:11b4 class-ID: 0300 temp: 62.0 C Display: unspecified server: X.org v: 1.21.1.24 with: Xwayland v: 24.1.13 compositor: kwin_wayland driver: X: loaded: modesetting unloaded: vesa alternate: fbdev,nouveau,nv,nvidia dri: nouveau gpu: nouveau display-ID: :1 screens: 1 Screen-1: 0 s-res: 3840x1080 s-dpi: 96 s-size: 1016x285mm (40.00x11.22") s-diag: 1055mm (41.54") Monitor-1: DP-2 pos: right model: Asus VG248 serial: F5LMQS077420 built: 2015 res: mode: 1920x1080 hz: 144 scale: 100% (1) dpi: 92 gamma: 1.2 size: 531x299mm (20.91x11.77") diag: 609mm (24") ratio: 16:9 modes: max: 1920x1080 min: 720x400 Monitor-2: DVI-I-1 pos: primary,left model: Asus VG248 serial: F2LMQS017700 built: 2015 res: mode: 1920x1080 hz: 144 scale: 100% (1) dpi: 92 gamma: 1.2 size: 531x299mm (20.91x11.77") diag: 609mm (24") ratio: 16:9 modes: max: 1920x1080 min: 720x400 API: EGL v: 1.5 hw: drv: nvidia nouveau platforms: device: 0 drv: nouveau device: 1 drv: swrast gbm: drv: nouveau surfaceless: drv: nouveau x11: drv: nouveau inactive: wayland API: OpenGL v: 4.6 compat-v: 4.3 vendor: mesa v: 26.2.4 glx-v: 1.4 direct-render: yes renderer: NVE4 device-ID: 10de:11b4 memory: 3.89 GiB unified: no API: Vulkan v: 1.4.363 layers: 2 device: 0 type: cpu name: llvmpipe (LLVM 23.1.2 256 bits) driver: mesa llvmpipe v: 26.2.4 (LLVM 23.1.2) device-ID: 10005:0000 surfaces: N/A Info: Tools: api: clinfo, eglinfo, glxinfo, vulkaninfo de: kscreen-console,kscreen-doctor wl: wayland-info x11: xdpyinfo, xprop, xrandr Adding the proposed environment variables solve the problem. No errors or warning in journalctl. When I start KDE I have messages related to org_kde_powerdevil and libddcutil. Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: Library initialization complete. Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: [ 2400][ 2.226098] (ddci_init) Done. Returning 0 Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: [ 2400] Starting ddca_start_watch_displays() Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: Watching for DPMS state changes unimplemented Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: [ 2400] Watching for DPMS state changes unimplemented Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: [ 2400][ 2.239670] Time since library initialized: 2.239668 seconds Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: [ 2400][ 2.239692] Extra delay starting dw_start_watch_displays: 0 millisec Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: [ 2400] Watching for display connection changes, resolved watch mode = Watch_Mode_Udev, poll loop interval = 500 millisec Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: [ 2400] initial_stabilization_millisec: 0, stabilization_poll_millisec: 100 Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: [ 2400] libddcutil recheck thread 0x558d74a95cb0 started Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: [ 2444][ 2.288092] Recheck interval: Sleeping for 200 milliseconds Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: [ 2400] libddcutil watch thread 0x558d74a945c0 started Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: [ 2400] Done ddca_start_watch_displays returning OK - OK(0): success Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: [ 2400][ 2.288212] (ddca_get_display_refs) Returned DDCA_Display_Ref list: Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: [ 2400][ 2.288240] DDCA_Display_Ref Display_Ref[1:bus /dev/i2c-0 @0x558d74a6df90] Oct 18 13:27:38 hpprol2 org_kde_powerdevil[2400]: [ 2400][ 2.288256] DDCA_Display_Ref Display_Ref[2:bus /dev/i2c-9 @0x558d74a75ea0] Oct 18 13:27:39 hpprol2 systemd[1]: Created slice Slice /system/dbus-:1.3-org.kde.powerdevil.discretegpuhelper. Oct 18 13:27:39 hpprol2 systemd[1]: Started dbus-:[email protected]. Oct 18 13:27:39 hpprol2 systemd[1]: Created slice Slice /system/dbus-:1.3-org.kde.powerdevil.chargethresholdhelper. Oct 18 13:27:39 hpprol2 systemd[1]: Started dbus-:[email protected]. Oct 18 13:27:39 hpprol2 systemd[1]: Created slice Slice /system/dbus-:1.3-org.kde.powerdevil.backlighthelper. Oct 18 13:27:39 hpprol2 systemd[1]: Started dbus-:[email protected]. Oct 18 13:27:39 hpprol2 backlighthelper[2460]: no kernel backlight interface found Regards Philippe -- You are receiving this mail because: You are watching all bug changes.
