[lostmsu]

Definitely! Was it an "optional update"? They recently stopped offering that because it was poorly presented: it was not actually an update rather installation of a different driver altogether.

Also, monitor driver? Are you sure?

[aragilar]

No idea, wasn't my machine (been a linux user for >15 years), I just needed to fix it (which I did via a linux live usb). Yes to monitor driver (I don't even know why it needed one, removing the driver allowed it to work fine, it definitely wasn't the GPU driver), and if you plugged in a different monitor it worked fine (and if I recall, installing a old graphics card I had lying around and connecting the "bad" monitor to it still caused problems).

I'd have thought it was some kind of joke if I hadn't seen it myself (apparently this wasn't the first time)...