I had this problem repeat. A GDM restart isn't required to fix this.
I dropped into a console and just set the resolution to 1680x1050
manually using xrandr and it comes back fine.
Still a bug that it happens in the first place!
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Screen randomly blanks with a "not optimum mode" monitor messag
** Attachment added: "apport.xorg.Kt8UwR.apport"
http://launchpadlibrarian.net/42070147/apport.xorg.Kt8UwR.apport
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Screen randomly blanks with a "not optimum mode" monitor message
https://bugs.launchpad.net/bugs/548956
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Bu
Public bug reported:
Just updated to 10.04 on an Asus Pundit-R machine running an ATI 9100
IGP graphics chip.
On two occasions since upgrading via the update manager yesterday, the
following has happened:
* Logged into a standard gnome session running at 1680x1050 on a Samsung 226BW
22" TFT con
