FS#16698 - [kernel26] backlight controls gone mad with lastest update

Attached to Project: Arch Linux
Opened by VuDu (VuDu) - Friday, 16 October 2009, 18:18 GMT
Last edited by Roman Kyrylych (Romashka) - Saturday, 23 January 2010, 16:28 GMT
Task Type Bug Report
Category Upstream Bugs
Status Closed
Assigned To Tobias Powalowski (tpowa)
Thomas Bächler (brain0)
Architecture x86_64
Severity Medium
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 1
Private No

Details

Description:
With the last kernel26 upgrade (2.6.30.6-1 -> 2.6.31.4-1) the brightness/backlight controls no longer work and it randomly changes from time to time.

Additional info:
The forum thread with more details:
http://bbs.archlinux.org/viewtopic.php?pid=637967#p637967
The update log:
http://www.pastebin.ca/1620546 (kernel update at 13:14)
A video of what's happening:
http://www.mediafire.com/download.php?z4mi4uzidjn


/proc/acpi/video/VGA/LCDD/brightness and /sys/class/backlight/acpi_video0/brightness don't change the brigthness and aren't showing the right values (since the brightness keeps changing and I keep cat'ing the same values).
xbacklight says "No outputs have backlight property".

Steps to reproduce:
Just boot the Arch with the kernel26 in core.
Booting with kernel26-lts makes things work as before.
This task depends upon

Closed by  Roman Kyrylych (Romashka)
Saturday, 23 January 2010, 16:28 GMT
Reason for closing:  Upstream
Additional comments about closing:  No response in ~3 months. Please reopen if necessary, with a link to upstream report.
Comment by Gerardo Exequiel Pozzi (djgera) - Friday, 16 October 2009, 21:38 GMT
  • Field changed: Status (Unconfirmed → Assigned)
  • Field changed: Category (Packages: Core → Upstream Bugs)
  • Field changed: Severity (High → Medium)
  • Task assigned to Tobias Powalowski (tpowa)
Please report this to upstream if not already reported. This is the good way to resolve this type of issues.

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