Hi!

quoted

quoted

The flickering would vanish completely if that's the reason for the issue
you are seeing.

quoted

Try setting ref_div_min and ref_div_max to 2 in
 radeon_compute_pll_avivo().

Ok, I did this, but no luck, still flickers. But the flicker only
happens when something changes on screen, like dragging a big
window. Is that consistent with wrong PLL timings?

Does it go away with radeon.dpm=0?  Sounds more like either memory
reclocking happening outside of vblank, or underflow to the display
controllers.

No, it does not:

pavel@half:~$ cat /proc/cmdline
BOOT_IMAGE=(hd0,2)/l/linux/arch/x86/boot/bzImage root=/dev/sda4
resume=/dev/sda1 radeon.dpm=0

..and same issue. And yes, it looks like an underflow to me. How can I
debug reclocking / underflows?

Best regards,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html