Hi all,
Well I would like to know how may I change my resolution. I use KDE on a linux RED HAT 7.3

hhegab

You can reconfigure with Xconfigurator and or if you have multiple resolutions defined in your /etc/X11/XF86Config-4 file you can use ctrl-alt-( + or - ) to change resolutions.

Edit /etc/X11/XF86Config file. Goto the default depth. Add the line:
Modes "1024x768"

That will set your resolution. If there's multiple, the first one will be the resolution. Set the first resolution to the one you need.

BTW, you must be root to edit this file as it is read-only.

can't it be done from the main menu, it is just a question.
I will do what you said and tell you the result

thank you very much for your time and effort.

hhegab

Thanks, I could fix it graphically!
But also I have tried what you said and now I hvae two methods to fix my resolution.
Thak you very much for caring to answer me

hhegab

Before editing your XF86Config-4, check if your monitor can handle settings given the modeline in XF86Config-4.

what do u mean by that?

hhegab

I've found this reply interesting since I'm want to change my screen resolution in X (I'm using Slackware 8.1 and KDE 3.0.1).However I can't find a "Default depth" section in the XF86Config.file.Should I just add the "Modes" line below the Default depth line in the "Screen" section (example below)?

Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 16
Modes "1024x768" <--- example
SubSection "Display"
Depth 1
EndSubSection
SubSection "Display"
Depth 4
EndSubSection
SubSection "Display"
Depth 8
EndSubSection
SubSection "Display"
Depth 15
EndSubSection
SubSection "Display"
Depth 16
EndSubSection

and so on...