Mailinglist Archive: opensuse-bugs (19716 mails)

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https://bugzilla.novell.com/show_bug.cgi?id=369535

User trenn@xxxxxxxxxx added comment
https://bugzilla.novell.com/show_bug.cgi?id=369535#c30





--- Comment #30 from Thomas Renninger <trenn@xxxxxxxxxx>  2008-05-20 06:16:15 
MST ---
Current brightnes control is a nightmare...

There also is:
   [Bug 9995] 2.6.25-rc1 regression - backlight controlls do not work -
              ThinkPad T61
   http://bugzilla.kernel.org/show_bug.cgi?id=9995

They introduced a bug (brightness is controlled via Nvidia ACPI device using
Software Interrupt instead of the Intel ACPI graphics card device), therefore
it works by luck.

This is all a huge mess currently and is very BIOS, graphics card and graphics
driver specific... I doubt we can do much for 11.0, but need to work on this in
time for 11.1/SLE11.

> BTW, after running OpenSUSE 11.0 b3 once, brightness control also failed in
> Windows XP on the same machine.
Have you done a BIOS update? There were new ACPI BIOS brightness functions
introduced for Vista.


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