Hmm, the Xorg.0.log indicates no EDID is being received from the monitor. Presumably it was auto-detecting previously because it was getting the EDID.
I've never heard of wine game modechanges causing corruption to the EDID itself (it's usually firmware, although some monitors have writable EDID; can't confirm from the manual if this model is like that), but I suppose anything's possible. However, have you changed anything on the hardware end? E.g., using any adapters, changed cords or video cards, modified anything in BIOS, etc.? You might try hitting the factory reset button on the monitor to see if it brings the EDID back. Two useful ways to examine EDID: 1. xrandr --verbose; This lists edid in a hexadecimal block. This corresponds to what X gets. 2. read-edid package; Run it as `get-edid | parse-edid`. This gets the EDID directly from the hardware. If one gives valid EDID data but the other doesn't, then it's a legitimate X/kernel bug. If neither produce any EDID info, then it starts looking more like a busted monitor. (The latter can be worked around via xorg.conf and/or replacement EDID.) ** Changed in: xorg (Ubuntu) Status: New => Incomplete -- 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/973358 Title: Monitor lost Resolution from 1920x1080 to 1024x768. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/973358/+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