November 3rd, 2011, 04:23 AM
Previously my external monitor worked as it should, but after installing some recommended updates last night I can't switch it on in my account anymore. The monitor (Fujitsu/Siemens 22inch) is recognised by ubuntu and theres no error messages when swithing on just no signal to display. When closing and reopening display settings its swithed off again. Before logging in and after logging out picture appears and also with guest account it works (not with the correct resolution, but atleast theres signal). I haven't manually changed any settings after it worked last time. After turning off ubuntu first time after those updates (there was something that needed reboot) I was in a hurry and had to detach vga cable while ubuntu was still swithing off. Unfortunately I didn't properly check what those updates included.