Re: [Intel-gfx] [PATCH] drm/i915: Disable semaphores by default on SNB

2011-12-23 Thread Keith Packard
On Fri, 23 Dec 2011 13:33:07 -0800, Keith Packard wrote: > /* Enable semaphores on SNB when IO remapping is off */ Yeah, the comment is wrong now. I've updated this too: - /* Enable semaphores on SNB when IO remapping is off */ + /* Enable semaphores on SNB */ -- keith.pack.

[Intel-gfx] [PATCH] drm/i915: Disable semaphores by default on SNB

2011-12-23 Thread Keith Packard
Semaphores still cause problems on some machines: > From Udo Steinberg: > > With Linux-3.2-rc6 I'm frequently seeing GPU hangs when large amounts of > text scroll in an xterm, such as when extracting a tar archive. Such as this > one (note the timestamps): > > I can reproduce it fairly easily wit