[Bug 26552] Screen flickering with 2.6.37 [ATI X1600]

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=26552





--- Comment #47 from Helber Maciel Guerra <helbermg at gmail.com>  2011-02-12 03:07:57 ---
(In reply to comment #46)
> Created an attachment (id=47472)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=47472) [details]
> new patch
> 
> Can you try this patch?  Try uncommenting the following lines to see if either
> of those flags work any better.  Try them individually and together if possible
> and report back which, if any, helps.
> 
> /*pll->flags |= RADEON_PLL_PREFER_MINM_OVER_MAXP;*/
> 
> /*if (ASIC_IS_AVIVO(rdev))
>         pll->flags |= RADEON_PLL_USE_FRAC_FB_DIV;*/

I try to uncomment none, first, second and both.
In all cases, kernel fb run, but Xorg freeze.
I am using latest xf86-video-ati, drm and mesa from default git tree.

I don't try to start with ums, just kms.

Can be cause xorg freeze by kms, drm, xorg, radeon driver or combination?

Regards, Helber Maciel Guerra.

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