i'am using kubuntu 10.10 on a HP Pavilion dv6 with a 4500MHD. when the desktop efffects are on, sometimes the screen get block and i only can move the mause cursor. when i go to the console, appear again and again the folowin message
> > [ 0.556247] [drm:init_ring_common] *ERROR* render ring head not reset to
zero ctl 00000000 head
> 02001000 tail 00000000 start 02001000
> > [ 0.556320] [drm:init_ring_common] *ERROR* render ring head forced to
zero ctl 00000000 head 00000000
> tail 00000000 start 02001000
and i have to halt the system...
it is a bug or a driver problem ?
> > [ 0.556247] [drm:init_ring_common] *ERROR* render ring head not reset to
zero ctl 00000000 head
> 02001000 tail 00000000 start 02001000
> > [ 0.556320] [drm:init_ring_common] *ERROR* render ring head forced to
zero ctl 00000000 head 00000000
> tail 00000000 start 02001000
and i have to halt the system...
it is a bug or a driver problem ?
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