Chris, I did update the BIOS to 407 last month after reading the instructions in the Ubuntu documentation that BIOS upgrades are necessary even if a system is stable in Windows, which this system is. The ASUS BIOS update software in Windows was used. I had high hopes the BIOS upgrade might cure this problem, but it persists, though it has diminished. Maybe the upgrade to 3.8.0-35 has helped too. Reverting to 3.8.0-33 gives a stable system.
Here is the output from sudo dmidecode -s bios-version && sudo dmidecode -s bios-release-date K55A.407 12/25/2012 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1264270 Title: Regular black screens since automatic kernel upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1264270/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
