On Wed, 12 Jan 2011 14:31:33 -0800 Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote: > On Wed, Jan 12, 2011 at 2:22 PM, Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> wrote: > > > > Ah, ok. ÂSo it could be our internal FDI link is underrunning; it goes > > between the CPU and PCH and carries display bits. > > I'm not sure it's an underrun or anything like that: the corruption is > long-term in the non-video case. So I take back the "looks like memory > bandwidth problems", because it really looks more like a corrupted > blit operation there. Ah ok if it's long running then yeah it's more likely to be a rendering issue. It could also be the FDI link getting its timings messed up though, and consistently delivering the wrong bits; that could show up in the same place on the screen each time, or it might move in a pattern across the screen (usually from top to bottom). > Will do. I'll have to reboot to the broken kernel (my bisection ended > in a non-broken case) Great, thanks. -- Jesse Barnes, Intel Open Source Technology Center _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
