[Bug 35246] Screen flashes and xorg goes in loop

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=35246

--- Comment #8 from Alex Deucher <agd5f at yahoo.com> 2011-03-26 09:31:48 PDT ---
(In reply to comment #7)
> (In reply to comment #3)
> > Does booting with radeon.agpmode=-1 on the kernel command line in grub help?
> 
> Confirmed: after a week of usage no problem so far. Just the flash keeps going,
> but that's a separate (DRM) issue, right?

Does the flash happen at regular intervals (like every 30 seconds or so)? 
upowerd and one of the kde daemons poll the monitors at regular intervals to
check if they are connected which can cause flickering.

> 
> So, I should put radeon.agpmode=-1 on grub,right?

Yes.  On the kernel command line in grub.

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