On Tue, Dec 6, 2011 at 5:04 PM, Giuliano Pochini <[email protected]> wrote: > On Tue, 6 Dec 2011 08:46:41 +0000 > Dave Airlie <[email protected]> wrote: > >> On Mon, Dec 5, 2011 at 8:41 PM, Giuliano Pochini <[email protected]> wrote: >> > First, my config: >> > >> > 0000:00:10.0 VGA compatible controller: ATI Technologies Inc Radeon RV250 >> > If [Radeon 9000] (rev 01) >> > >> > Linux Jay 3.1.0 #3 SMP Tue Nov 1 17:58:39 CET 2011 ppc 7455, altivec >> > supported PowerMac3,6 GNU/Linux >> > >> > >> > When EnablePageFlip is enabled the machine crashes as soon as another >> > window hides any part of the glxgears window. The screen turns off and a >> > hard reset is needed (Rsys+B does not work). I'm not using KMS. >> >> Thats probably the problem then. Supporting UMS is not on anyones list >> that cares anymore. > > Well, I think EnablePageFlip was just ignored in older versions of > Xorg or kernel. Now, when EnablePageFlip is enabled, glxgears runs about > 15% faster, while it made no difference before.
The option has been around for UMS for years, but few people use UMS anymore. > > I also tried KMS. When EnablePageFlip is enabled glxgears renders nothing > and X freezes immediately except the mouse pointer. After a few second the > screen blanks and a reboot is the only cure. > > W/o EnablePageFlip it works better. glxgears looks OK, but it runs at > 60fps. xterm colours are wrong. Everything else seems fine. Running other > 3D apps (Nexuiz, Scorched3D) works fine at first, but seconds or minutes > later it locks up the same way without any symptom before that moment. > With KMS apps are synced the refresh rate by default, you can override that by setting the env var vblank_mode=0, e.g., vblank_mode=0 glxgears Pageflipping with KMS works fine here, so it may be something mac specific. > >> So unless its a regression in the kernel and you can bisect it I'm not >> sure you'll see much help. > > Plus I have pretty old hardware and hard lock ups are hard to debug... > > > > -- > Giuliano. > _______________________________________________ > [email protected]: X.Org support > Archives: http://lists.freedesktop.org/archives/xorg > Info: http://lists.freedesktop.org/mailman/listinfo/xorg > Your subscription address: [email protected] > _______________________________________________ [email protected]: X.Org support Archives: http://lists.freedesktop.org/archives/xorg Info: http://lists.freedesktop.org/mailman/listinfo/xorg Your subscription address: [email protected]
