[ I'm not on intel-gfx list, only xorg, so please cc me ] On 15/04/09 09:08 Tino Keitel said the following:
> What is required for tearing-free xv? I have XV_SYNC_TO_VBLANK set to 1 > on all XV ports, but still see tearing on i945. I don't have KMS enabled. Me too. I was going to send an e-mail about it later, but since you've brought it up... I don't know enough about the relationships between the graphics systems to tell whether this is a configuration issue or a bug. * Kernel 2.6.29 + KMS. Horizontal tears are constantly in the same two places on screen, as if it's synced but incorrectly. Note that with this config, I had to use xrandr to create and set a +vsync mode as DDC output in Xorg log shows all modes with -vsync. * I haven't tried 2.6.29 without KMS. * Kernel 2.6.27 and 2.6.28 (Ubuntu -generic kernels). Horizontal tears are in random places, as if it's not synced at all. In this config, DDC output showed some modes with +vsync, so I selected one. Both configs are using: * xf86-video-intel 6d345c49f693cc5cffaa00b94559d2afcb3a0864 2009-04-10 * libdrm 07646002c6835537c6ae44ef9b3f8480762279b8 2009-04-10 * i945GM I also wonder if the performance regression(s) with i945 are affecting this? Jon _______________________________________________ xorg mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/xorg
