| Bug ID | 110973 |
|---|---|
| Summary | GeForce GT 750M Mac Edition backlight |
| Product | Mesa |
| Version | unspecified |
| Hardware | Other |
| OS | All |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | Drivers/DRI/nouveau |
| Assignee | nouveau@lists.freedesktop.org |
| Reporter | ak@axet.ru |
| QA Contact | nouveau@lists.freedesktop.org |
Created attachment 144616 [details] sudo acpidump -o acpidump.txt Hello! I notice when laptop display went off, it keep backlight on. Technically speaking this: # xset dpms force off only set screen to black, without turning off LCD backlight. My kernel has "acpi_backlight=vendor" which enables backlight control from function keys and gnome recognize those actions by displaying popup with current brightness level. Everything seems works fine, I've been able to turn display off using: # echo 0 > /sys/devices/pnp0/00:03/backlight/gmux_backlight/brightness But still no luck with 'xset'. axet@axet-laptop:~$ ls -al /sys/class/backlight/ total 0 drwxr-xr-x 2 root root 0 июн 23 23:13 . drwxr-xr-x 67 root root 0 июн 23 23:13 .. lrwxrwxrwx 1 root root 0 июн 23 23:13 gmux_backlight -> ../../devices/pnp0/00:03/backlight/gmux_backlight axet@axet-laptop:~$ Maybe related: https://bugs.freedesktop.org/show_bug.cgi?id=106869
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