[Bug 21542] Radeon: No 50Hz (PAL) modes available after upgrading to 2.6.36

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=21542





--- Comment #11 from curious at bwv190.internetdsl.tpnet.pl <curious at bwv190.internetdsl.tpnet.pl>  2011-02-07 00:21:45 ---
> I finally did the bisect and got this as a result after a lot of rebooting:
>
> "
> 139315796778a6d5f67c644e2ff470ddc69efb7b is the first bad commit
> commit 139315796778a6d5f67c644e2ff470ddc69efb7b
> Author: Adam Jackson <ajax at redhat.com>
> Date:   Tue Aug 3 14:38:19 2010 -0400

<...>

> Maybe this should be changed to Video(Other) as this probably applies to all
> graphic cards?
>
> Do you need the bisect log?
>

thanx. some time ago i've also noticed i can't set up 50hz modes
on various hw. while previously i could, so i can confirm it affects
other hw.

50hz modes are esp. usefull on analog LCD screens (slows down pixel
clock, so improves sharpness)  , slow hw (bit less stress on VRAM),
  and when using programs like vice , fuse, or other sw. emulating PAL 
computer with exact refresh rate (i do not know why, but they work much 
slower and stutter - probably because vblank signal is firing too often,
trigering update which could be deferred a bit more).

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