Workaround #1: > I guess I'll repartition and try installing raring in the new partition.
success! the bug has been fixed in Ubuntu 13.04. This is still an update regression with 12.10; my ThinkPad T500 worked just fine on March 31 and video stopped working on April 13. But at least the next version of Ubuntu is not affected. Workaround #2: boot Ubuntu 12.10 with kernel parameter "nosetmode". Success! I also removed "quiet" and "splash" from the kernel command line, so I see a nice noisy boot process. X starts fine, and performance is just fine. Text consoles appear to be plain old-fashioned text mode, just like back in the old days before KMS. There is a tiny flicker switching between text consoles and X, again just like in the old days. Workaround #3: boot Ubuntu 12.10 with kernel parameter "vga=0x0f00" (standard 80x25 text). Fails. I get the same noisy boot process as before (again I have removed "quiet" and "splash"), in glorious black- and-white 80x25 text. But the screen goes black after a while -- presumably when starting X? Anyways, the evidence points to this being a bug in kernel mode setting, so I'm changing the affected package. ** Package changed: xorg (Ubuntu) => linux (Ubuntu) -- 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/1168967 Title: regression: no video after upgrading kernel, mesa, libc, and several other packages (ThinkPad T500) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1168967/+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
