HP L1506 LCD Monitor- GUI Display gets corrupted while switching from virtual console

Mr. ameya sathe · 06-05-2009, 10:09 AM

Operating System :Red Hat Enterprise Linux Server release 5.1 (Tikanga)
LCD Monitor: HP L1506

My default runlevel is 5. When I switch over to virtual consoles; & back to GUI; the GUI screen gets corrupted. I can continue using the virtual consoles. Even; if I press the Ctrl+Alt+Backspace key combination; still the GUI remains corrupted. This scenario occurs irrespective of the desktop environment installed; may it be KDE/GNOME just plain; twm .
I have found out 3 solutions

Just stick to the virtual console
Just stick to the GUI; dont switch over to the virtual consoles
Restart the computer to get back the GUI.

This solution is not plausible. I am in search of better solution.
Thanks.
Ameya Sathe

Fred Caro · 06-06-2009, 03:59 AM

I'm only guessing but it sounds like a hardware issue, perhaps check the compatibility lists. If possible drop the screen res to 800x600 or the lowest it will allow and retry.

Fred.

Mr. ameya sathe · 06-28-2009, 11:41 PM

Well. Drop down to 640x480 as well as 800x600. The problem now occurs less frequently. The same behaviour is exhibited on a LCD projector. The machine attached is of; HP make.

nowonmai · 06-29-2009, 10:41 AM

I'm going to go out on a limb and guess that you have an ATI gfx card. You will need to get the fglrx graphics driver from the ATI website.

Fred Caro · 06-30-2009, 04:43 AM

If you are on a Red Hat release, how come 'support' cannot sort the problem? Check the bios.

Fred.