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

[bugzilla-daemon@freedesktop.org]

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

--- Comment #10 from comio <luigi.mantellini@gmail.com> 2011-02-15 08:54:25 PST ---
(In reply to comment #9)
> (In reply to comment #8)
> > This seems to be related (I will check asap)
> > 
> > https://bugzilla.kernel.org/show_bug.cgi?id=26552
> 
> This is not a KDE4 related. I experience this also with xmonad, openbox,
> lxde...
> 
> @Comio I also have this problems as on that link you pasted:
> https://bugzilla.kernel.org/show_bug.cgi?id=26552 I've also uploaded a video
> http://www.youtube.com/watch?v=rjhAknBoJDE
> 
> Has anyone found a solution yet to one or another bug? (if they are even
> related) or do we have to wait for next kernel release?


Try to use the old pll (new_pll=0 option). My problem is different: when the
software probes the second screen (like xrandr -q) the external monitor shows
for a second a black screen. The solution seems to disable the krandr
periodical probe... but I will test in this afternoon at home.

best regards.

luigi

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