2010/6/4 Marius Gröger <marius.groeger@xxxxxxxxxxxxxx>: > Hi All, > > Michel Dänzer schrieb: >> On Mit, 2010-06-02 at 08:07 +0200, Marius Gröger wrote: >>> Hello All, >>> >>> I'm trying the top-of-trunk drm-2.6 trees (both drm-next and >>> drm-radeon-testing) with my Radeon HD 3200 GPU over HDMI. The primary >>> application is mythtv which uses DRM syncing for the frame >>> syncronisation. Now, with the exact same userland software I noticed the >>> introduction of sync gliches in the May-timeframe. The >>> drm-radeon-testing on May 9 was still ok, but both drm-next and >>> drm-radeon-testing at the end of May showed that glitch: every couple of >>> seconds there's a very visual hickup, especially in scroll texts. >>> >>> Apologies for such an unspecific description, and for what almost seems >>> like a support request for MythTV. I wouldn't post here if I were not >>> 100% sure it must be related with the recent drm changes. >> >> Note that the DRM APIs are intended for use by userspace components of >> graphics drivers / API libraries, not applications directly. MythTV >> shouldn't use the DRM directly for synchronization but rather use GLX >> synchronization APIs. > > What about that new dri2 vsync stuff which was mentioned related to [Bug > 28383]? Could the changes done for that in any way alter the timing? BTW > I measured the glitches I'm experiencing and the appear to be to happen > in intervals of 10 seconds. Again, all I'm changing is the kernel, and > even the kernel config is the same. I'd be most grateful for any > clues/hints/tips I could follow to resolve this regression. > >> If you have dynamic PM enabled, does disabling that help? > > I checked again and there's method=profile and profile=default. Afaict > this is not using dynpm, right? > Correct. Alex _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
