On Thu, Sep 19, 2013 at 05:00:35PM -0300, Paulo Zanoni wrote: > From: Paulo Zanoni <paulo.r.zan...@intel.com> > > Linus recently complained about screen corruption when coming out of > DPMS on his Haswell machine, and he also mentioned there were no error > messages on the log. I think I can reproduce this problem, and when it > happens I get a "FIFO underrun" message, but since it's just > DRM_DEBUG_DRIVER it's hard to notice. So promote underruns to error > messages because reports containing "I'm getting a FIFO underrun on > pipe A" are way much better than "I'm getting a screen corruption".
Sadly FIFO underruns on quite a few platforms are expected and unfixable. Others they are just expected. We reduced the error level because they are too noisy, and we were not in a position where the underrun was actionable. As we do not yet have the underrun feedback in place, I do not think we are ready for the onslaught of errors. At minimum, you should only set the error message for the platforms you intend to fix. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/intel-gfx
