Bug 215417
| Summary: | setting brightness to 0 permanently turns off screen | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Mark (mark.baas) |
| Component: | Video(Other) | Assignee: | drivers_video-other |
| Status: | RESOLVED MOVED | ||
| Severity: | normal | CC: | aros |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | 5.15.7 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: |
screen on max
screen off screen should be on again |
||
Created attachment 300161 [details]
screen off
Created attachment 300163 [details]
screen should be on again
Did any earlier kernels work? Please file here instead: https://gitlab.freedesktop.org/drm/intel/-/wikis/How-to-file-i915-bugs Nope, I tried multiple 5.12, 5.16 as well Ubuntu 21.10. I guess it's the same as https://gitlab.freedesktop.org/drm/intel/-/issues/3657 Please CC yourself and provide the required data. |
Created attachment 300159 [details] screen on max When setting the brightness to 0, either on kde with the brightness controls or with `brightnessctl s 0` the screen turns off. Then when trying to turn it back on with the brightness controls, it says off. The OS didn't get the OFF signal somehow. All the values in /sys/class/backlight/intel_backlight seem to indicate this. I attached the output of `grep -r . /sys/class/backlight/intel_backlight/` for the three scenarios: 1. Screen max on 2. Screen brightness 0 3. Screen should be on, but still off. inxi output: CPU: 8-core 11th Gen Intel Core i9-11900H (-MT MCP-) speed/min/max: 836/800/4900:4800 MHz Kernel: 5.15.7-1-MANJARO x86_64 Up: 12m Mem: 3232.2/31829.3 MiB (10.2%) Storage: 953.87 GiB (1.0% used) Procs: 328 Shell: Bash inxi: 3.3.11 Laptop model: Dell XPS 9510 (2021) with OLED screen. I suspect it is related to OLED. The bug doesn't present itself too much in GNOME as this DE doesn't lower brightness to 0. Screens can be turned on again by playing with dpms off. Issue presents itself in both wayland as X.