Ubuntu
linux package

  1. Bug #1173725
  2. Comment #85

Comment 85 for bug 1173725

Revision history for this message
In , dannybaumann (dannybaumann-linux-kernel-bugs) wrote :

While my report #55071 was duplicated into this one, I'd like to state that my backlight issue is of different nature:

- The device is a Dell Inspiron 15R SE (7520) in UEFI mode.
- _BCL reports 102 levels (100, 30, and 1-100).
- I now get 2 acpi_video devices instead of previously 1.
- No matter what I set via writing to 'brightness' in either acpi_video device, reading it always yields '99'. This is - unlike the Thinkpads - also the case for values contained in the _BCL table for the non-Windows 8 case.

I can upload acpidump output again if desired.