Comment 128 for bug 755841

(In reply to comment #83)
> In other news, I just noticed something: for some reason my video's were
> tearing even when using the vaapi and gl outputs just now. This was with
> kernel-3.4+drm-intel-next-2012-05-20.
> Toggling the resolution with xrandr fixed it. I don't know how or why it
> stopped working, but now if/when this happens you should at least be able to
> fix it without a reboot.
I believe I saw this too.
For example, code from Comment 76 gives me tearing and code from Comment 81 does not, because the first one sets resolution on by itself and in second one I set it myself using xrandr, and the code is basically the same.