I'm on AMD64, so I can't test the i386 Ubuntu package that was posted. However, I installed xserver-xorg-video-intel_1.9.92-1_amd64.deb and xserver-xorg-core_1.2.99.902-1_amd64.deb from Debian-experimental, and it seems to have resolved several issues for me. One of the resolved issues was a system freeze that would happen while my laptop's screen was powered off.
I'm on AMD64, so I can't test the i386 Ubuntu package that was posted. However, I installed xserver- xorg-video- intel_1. 9.92-1_ amd64.deb and xserver- xorg-core_ 1.2.99. 902-1_amd64. deb from Debian- experimental, and it seems to have resolved several issues for me. One of the resolved issues was a system freeze that would happen while my laptop's screen was powered off.