| Summary: | Powerdevil not reporting/not letting me change DDC/CI Brightness | ||
|---|---|---|---|
| Product: | [Plasma] plasmashell | Reporter: | syzzori |
| Component: | Brightness and Color widget | Assignee: | Plasma Bugs List <plasma-bugs-null> |
| Status: | RESOLVED UPSTREAM | ||
| Severity: | normal | CC: | kdedev, natalie_clarius, nate |
| Priority: | NOR | ||
| Version First Reported In: | 6.5.3 | ||
| Target Milestone: | 1.0 | ||
| Platform: | Arch Linux | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed/Implemented In: | ||
| Sentry Crash Report: | |||
Forgot to add: I'm using nvidia-open-dkms as my driver version 580.105.08-4 Possibly related https://github.com/rockowitz/ddcutil/issues/562 I'd recommend reporting this upstream to the DDCutil folks at https://github.com/rockowitz/ddcutil/issues, as there's no indication there's a Plasma issue at play here. |
SUMMARY The tray icon where you'd normally change the brightness of a monitor disappeared. STEPS TO REPRODUCE 1. Open up the tray icon 2. The monitor brightness briefly appears, you can change it 3. The slider disappears and the systemd service throws warnings OBSERVED RESULT The brightness slider disappears EXPECTED RESULT Change the brightness. SOFTWARE/OS VERSIONS Linux/KDE Plasma: Arch Linux KDE Plasma Version: 6.5.3 KDE Frameworks Version: 6.20.0 Qt Version: 6.10.1 ADDITIONAL INFORMATION [DDCutilDisplay]: ddca_set_non_table_vcp_value -3023 DDCutilDisplay]: "Odyssey G40B" retrying to set DDC/CI brightness in 2000 milliseconds - attempt no. 2 [DDCutilDisplay]: ddca_set_non_table_vcp_value -3023 [DDCutilDisplay]: "Odyssey G40B" retrying to set DDC/CI brightness in 3000 milliseconds - attempt no. 3 [DDCutilDisplay]: ddca_set_non_table_vcp_value -3023 [DDCutilDisplay]: "Odyssey G40B" failed to set DDC/CI brightness Here's the SystemD service log running "ddcutil detect" outputs Display 1 I2C bus: /dev/i2c-2 DRM_connector: card0-DP-1 EDID synopsis: Mfg id: SAM - Samsung Electric Company Model: Odyssey G40B Product code: ---------------- Serial number: ----------------- Binary serial number: ----------------- Manufacture year: 2024, Week: 10 VCP version: 2.0 and trying to change the brightness with "ddcutil setvcp 10 {brightness%}" works perfectly fine tried clearing kde config and reinstalling the whole plasma group