[Bug 34237] External LCD monitor flickers every 30 seconds radeon mobility x1400

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=34237

--- Comment #13 from Alex Deucher <agd5f at yahoo.com> 2011-02-15 09:45:54 PST ---
(In reply to comment #12)
> 
> Wow. radeon.new_pll=0 solved the every 30 seconds flickering. I have running
> krandr in KDE4 and it doesn't flicker.
> 
> So this bug should be marked as solved?
> 
> Now I have to try Dave's drm-fixes (Which is another bug).
> 
> Thank you comio.
> Thank you Alex Deucher for that link. I'm gonna try it.

the new_pll option was removed in 2.6.37, so you probably just disabled kms. 
I'd recommend drm-fixes as it contains several pll fixes that should fix your
problem.

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