I've been trying to stay up to date on the intel drivers/known bugs, but I continue to have 1080 tearing. Here is my setup: Intel DG45FC (mini-itx with hdmi) Gentoo 2.6.28 kernel xorg 7.4 xorg-server 1.5.3 libdrm master branch (as of today) mesa master branch (as of today) xf86-video-intel 2.5.99.2 (tearing still occurs even with 2.5.99.1, 2.5.1, and 2.5.0) I have Xorg setup for 1080p output to a plasma tv via hdmi, and that works great. I use Mythtv to play video content (with and without vsync checked) but I get the same tearing even when using mplayer -vo xv. The horizontal tearing only occurs when playing 1080i video and it always tears at the same location, about 1/8 of the way down the screen from the top. 720p video plays great without any tearing, as everything else does that's smaller then 1080 as well. If I enable xcompmgr, the tearing gets even worse. But it is now about 1/4 of the way up from the bottom of the screen. If I enable the opengl renderer in mythtv then all the content is rendered a green monochrome. weird. I've attached my dmesg, xorg.conf, and Xorg.0.log.