Last night my monitor, Viewsonic E70fb, went black with a "No Signal" message. Computer continued running so I turned monitor off. Turned monitor back on this morning and No Signal message still there. Rebooted (lost some UD progress) and computer "found new device" which was identified as "default monitor" when it previously had been Viewsonic E70fb. Had to reinstall driver. Any ideas as to cause? bobbo
It's not uncommon for Windows to lose display settings, especially with "plug and play monitors". What I'd do is boot to safe mode, and remove all instances of monitors in device manager. You probably now have a couple of defunct entries in there. I have that happen once in a while, Windows detects a "default monitor". If I go to safe mode, I have an entry for default monitor and Mag XJ500T. I usually remove them both/all (but in my case just removing the default monitor and restarting normally is sufficient)..
One example I know of that can cause things like that to happen. Games, when they mode switch sometimes.
#2. "RE: No Signal" In response to bobbo (Reply # 0) Sun Dec-16-01 10:54 PM
With a newer monitor, you can get the "No Signal" message when it is just powered on, but not connected to the video card. This lets you know that the monitor itself is getting power, but no data signal.
Therefore, some other things you might suspect: • the monitor data cable is faulty • the connection at the video card is loose • the video card may need re-seating • the video card may be failing