On Mon, Aug 3, 2015 at 9:02 AM, Hans de Goede <hdego...@redhat.com> wrote: > Hi, > > On 30-07-15 16:09, Ilia Mirkin wrote: >> >> FWIW this is a fail on nv50+ as well. See for example >> https://bugs.freedesktop.org/show_bug.cgi?id=91445 >> >> My suspicion is that this is due to the lack of PUSH_KICK in the *Done >> exa handlers -- works fine with DRI2, but DRI3 has no synchronization >> and so the commands never get flushed out. Easily verified by sticking >> PUSH_KICK's everywhere. > > > I do not believe that that is the problem, in my case it clearly > seems to be a pitch / swizzle problem rather then a synchronizarion > problem, here is what my desktop with gnome shell looks like when > using DRI2: > > https://fedorapeople.org/~jwrdegoede/nv46-gnome-shell-good.jpg > > And this is what it looks like when using DRI3: > > https://fedorapeople.org/~jwrdegoede/nv46-gnome-shell-bad.jpg > > The DRI2 screenshot is made with Mario's 2 patches on top of > current master: > > http://lists.freedesktop.org/archives/nouveau/2015-July/021740.html > http://lists.freedesktop.org/archives/nouveau/2015-July/021741.html > > And then adding Option "DRI" "2" to xorg.conf.
His patches should have defaulted it to DRI 2 I think, so this is unnecessary. In fact you should have had to say "DRI" "3" to get DRI3 with his patches. -- > > I've also tried disabling EXA using Option "AccelMethod" "none", > but that seems to also automatically disable all DRI, leading to > software rendering. > > I discussed this with Ben this morning and he suggested that this > is likely a Mesa issue since with DRI3 mesa rather then the ddx > allocs the surfaces. I've tried disabling swizzling in the > mesa code by forcing nv30_miptree_create() to always take > the code path for linear textures, but that leads to the exact > same result as before that change. Ah yes. Very different problem indeed. I actually suspect it has to do with swizzling. Look at the white pattern of the moon -- it's all in a line. That means that it expected some locality and instead it got drawn all on a line. If it were merely a stride problem, I'd expect to see strips of the moon below and offset from one another. So... take a look at nv30_miptree_from_handle -- I wonder if it can now receive swizzled textures where it couldn't before. -ilia _______________________________________________ Nouveau mailing list Nouveau@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/nouveau
