Willie Wong ha scritto: > On Mon, Jan 12, 2009 at 01:42:22PM -0500, Denis wrote: >> I just installed Xorg on the older Dell machine, for which I have a >> 17-inch Sony LCD screen. Before I did anything with X, my screen >> colors were just like I'm used to. Now, I fired up X, got it to work >> fine, and the colors are fine, but then I kill X and go back to text >> mode, and the colors in text mode are all wrong, like I'm using a >> dying CRT that's not firing right. I go back to X, and the colors are >> fine again. Back to text mode - same deal. Is X setting some >> variable wrong when it shuts off, or do I need to tweak something? >> Using manual controls on the LCD menu don't help at all. Anyone run >> into this before and might know what to do about this? > > Maybe the video card? > > I had something similar to this happening on my desktop with an old > nvidia card. Throughout the years, shutting down X may give one of the > following: > > a) business as usual, nothing wrong. > b) the computer thinking the screen is bigger than it actually is: > the upper left corner is okay, but the 3 right most columns and the > bottom row (of my 80x25 text display) is off the screen. The text is a > bit bigger than it ought to be. > c) blank screen. The computer still responds: I can "type" xinit > without seeing anything and get back into an X session. Just nothing > is displayed on the screen. > d) funky colors on the screen, which may also accompany b). > > I never did figure out what is wrong. The behaviour is transient: if I > just start X again, and then shut-off, it not always give the same > problem. I suspect it is the video card because I remember noting that > it behaved better after a certain version of nVidia driver. But I > can't be certain because the bug is awfully un-reproducible. > > This probably doesn't help much... but I just want to throw in my two > cents.
Could it be funny stuff remaining in the video card memory? I've seen such eerie things happen in some occasions, with ATI cards. I also remember that old cards had the habit of displaying a "ghost" of the last X desktop, for a fraction of a second, just when X starts. I think it can only be driver and/or X fault. m.
