Is this the issue in KDE that when I start a game I have to toggle compositing a couple of times to get it rendering? <div class="gmail_quote">On 6 Oct 2014 07:39, "Chris Wilson" <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On Mon, Oct 06, 2014 at 11:04:51AM +0900, Michel Dänzer wrote: > On 05.10.2014 16:06, Chris Wilson wrote: > >I was looking at a bug report today of intel/ati prime and noticed a > >number of sna_share_pixmap_backing() failures (called from > >DRI2UpdatePrime). These were failing as the request was for the scanout > >buffer (which is tiled and so we refuse to share it, and since it is > >already on the scanout we refuse to change tiling). > > > >But looking at radeon_dri2_copy_region2(), if DRI2UpdatePrime() fails, > >the copy is aborted and the update lost. If the copy is made to the > >normal window drawable is that enough for it to be propagated back > >through damage tracking? > > Have you asked the reporter of that bug to test your patch? They didn't notice the issue, presumably because it only happens quite early in the DE startup. However, I do remember Dave mentioning what seemed to be a similar issue: a peristent blank window. Hence the inquisitive nature of the patch. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ dri-devel mailing list <a href="mailto:dri-devel@lists.freedesktop.org">dri-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/dri-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/dri-devel</a> </blockquote></div>