PLEASE HELP - Video Resolution keeps changing

Tod Merley todbot88 at gmail.com
Thu Nov 6 02:18:21 UTC 2008


On Wed, Nov 5, 2008 at 9:22 AM, Jim <mickeyboa at sbcglobal.net> wrote:
> FC 8 KDE
> Using the nv or nividia driver,the Video resolution keeps changing after I
> set it in system-config-display to 1024x768.
> It always changes to higher resolution after rebooting box.
> I have four other new Linux users that are having the same problem, and they
> very unhappy with Linux because of this.
> What is causing this problem ??
> I use KDE and so does the other four new LInux users, and I can't update to
> FC 9 or 10 because KDE is so unstable.
>
> Below is xorg.conf
>
> # Xorg configuration created by system-config-display
>

>
>
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Hi Jim!

Well, first lets find out what is going on - execute:

tod at tod-desktop:/var/log$ cp Xorg.0.log /home/tod/Desktop/Xorg.0.log.txt

Of course you need to move to /var/log before you do this and use the
actual name of your home directory to land the file on your desktop.
I like to do it this way because it is convenient and kind of makes a
snapshot of the log file as well.

Pull the resulting file into your favorite text editor.  Note at the
beginning of the file those things you will find at the beginning of
the line in parenthesis.  Be very watchful for "(WW)" and especially
"(EE)".  Also be looking for the word "not" (as in "not using"). The
text editor environment is nice since you can use "find" and "find
again" to search for these things as you need to and move around in
the file efficiently.

Lets also have a look at your video hardware from the view of the pci
buss.  Execute (as ROOT):


root at tod-desktop:/var/log# lspci -v -v -x > /home/tod/Desktop/lspci.txt

Again making those changes necessary to your environment.  Then again
pull it in to your text editor.  At the bottom of the file you will
usually find the video adapter.

Probably you will find in the Xorg.0.log that it does not like the
settings recommended in your /etc/X11/xorg.conf file and so chooses
one that it does like.  You may need to get the technical information
on your video adapter and display to change your xorg.conf so that X
can use it.  Another possible way is to use a live CD (Knoppix,
perhaps Fedora, Ubuntu, etc...) and see what they come up with for an
xorg.conf that X likes!  I have occasionally used critical portions
(monitor, screen) of such a xorg.conf to modify one that was not
working and had very good results.

Have a lot of fun!

Tod




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