After a short power outage (2 minutes max) my monitor ( acer al1711)cannot display green. Is the problem the monitor or the drivers?

It sounds like a surge may have damaged the monitor. Try rebooting your system, and if that doesn't work, reinstall the drivers. If the problem persists, the monitor may have been damaged by a power surge and it may have to be serviced/replaced.

I hope this helps :)

Best Regards,

James

First, try the obvious: Turn the monitor and the PC it is hooked to off, unplug both from their power source for 30+ seconds, unplug the monitor from the PC as well. Plug everything back in, in reverse order and see if the problem with the missing green goes away.

If that does no solve your problem, use the front panel menu buttons on your monitor and scroll through to the color options/settings option. If you can see green at all within the menu screen or any of the color options within the sub-menus, chances are the problem is your video card.

I doubt it is a driver problem. I would suggest hooking the monitor up to another pc to verify if indeed it is the monitor. If the problem doesn't exist hooked up to another pc, then it very well could be a issue with the video controller (GPU).