On Dec 24, 2007 1:51 AM, William Murray <W.J.Murray@xxxxxxxx> wrote: > > > On Mon, 2007-12-24 at 01:49 -0500, fedora-list-request@xxxxxxxxxx wrote: > > To OP (Bill) > > > > Try editing /etc/X11/xorg.conf > > > > see the section that looks like this... > > > > Section "Screen" > > Identifier "Screen0" > > Device "Videocard0" > > Monitor "Monitor0" > > DefaultDepth 24 > > SubSection "Display" > > Viewport 0 0 > > Depth 24 > > Modes "1280x1024" "1280x960" "1280x800" "1280x720" > > "1152x864" "1152x768" "1024x768" "800x600" "640x480" > > EndSubSection > > EndSection > > > > (Note that the 'Modes' section is all on one line but will wrap into > > multiple lines in this e-mail.) > > > > Add "1400x1050" into that line (make it the first resolution because > > the > > first listed is the first tried). > > > > Then see what happens when you log out and log back in...I don't think > > it will take a restart to change it. > > > > Craig > As has been pointed out, modes doesn't work. Actually if you specify > just 1400x1050 you get a black screen - so it dos something! > I have oped to 1280 for just now, but it causes problems . > Bill > > Hi Bill! I believe that Craig is correct to have you place the mode in the Screen section. Yes, it apparently does not correct the problem but it needs to be there. I recall a strange problem that I had on a Dell 8100 laptop. Running FC6 the screen looked pretty good but, if it was all white you could see little segments of the edges of some of the lines flickering black. It was irritating. Ubuntu on the same machine had no such problem. Looking at the xorg.conf files the only significant difference I noted was that the horizontal and vertical sync limits were just a bit different (I suppose they would translate into refresh rates since my monitor on the laptop was a fairly good flat panel screen). So I changed the FC6 to be like the Ubuntu xorg.conf and the little lines went away. Perhaps this suggests a couple of possible roads: 1. You could try several Live CDs (at least Ubuntu and Knoppix) and see if they find a good solution. If so, imitate in FC8. 2. You could research the technical specifications of your Monitor and Card and use them to calculate the horizontal and vertical refresh rates ( 1/sync Hz or Khz) which the system can handle and then make the appropriate Monitor section contain that setting in your xorg.conf. It may be worth a try. Good Hunting and Great Viewing! Tod
