I experience the same issue, or something similar. I have ATI's mobility radeon 9100 IGP, which worked fine in Breezy and pre-LTS Dapper (with DRI, too).
When I am *away* from my computer for a few minutes, I will return to find the screen half blank and hard frozen, i.e. I can't restart X. I'll install kubuntu and see if I still have an issue.
I experience the same issue, or something similar. I have ATI's mobility radeon 9100 IGP, which worked fine in Breezy and pre-LTS Dapper (with DRI, too).
When I am *away* from my computer for a few minutes, I will return to find the screen half blank and hard frozen, i.e. I can't restart X. I'll install kubuntu and see if I still have an issue.