Hello, 3 days without any hangs with (before it would freeze many times a day): http://people.debian.org/~jcristau/wheezy-drm34/linux-image-3.2.0-4.drm-amd64_3.2.35-3~jcristau.1_amd64.deb Wheezy Thinkpad X230 Core i5-3320M (2.60GHz) Intel HD Graphics 4000 Thanks for the fix! david