Thanks Geir for the pointers to the other bugs. The freeze happens instantly.
I tried the following: started in recovery mode without X and the freeze/hang happened even then. So it seemed like a kernel issue and more like bug 319717. I looked over the other bug and found a possible work-around - adding 'acpi_osi="!Windows 2006" to the kernel boot parameters. This seems to have done the trick - after booting into the kernel with this parameter, I don't see the freeze/hang issue anymore. However 319717 reports that the issue was fixed in v2.6.31-rc1 which is the ubuntu 2.6.31-1.13 kernel. I am currently running 2.6.31-17. I have attached dmesg and kernel logs while booting with acpi_osi parameter. ** Attachment added: "dmesg with acpi_osi set to '!Windows 2006'" http://launchpadlibrarian.net/38426503/dmesg.txt.acpi_osi -- [GM45] System Hangs on Connecting External Monitor https://bugs.launchpad.net/bugs/512387 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. _______________________________________________ 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
