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Old 04-07-2002, 06:04 AM   #1
Registered: May 2001
Posts: 42

Rep: Reputation: 15
Screen resolution in Linux


I just recently installed Red Hat 7.2 and I was wondering, how to you change the screen resolution when linux is already installed?

My other question is, I can't seem to get my soundcard working. It's a Soundblaster Live card. Linux seems to find it...but it says something about I/O port error... Everything works just fine in Windows.

Old 04-07-2002, 06:37 AM   #2
Registered: Apr 2002
Location: The Netherlands
Distribution: Slackware, openBSD
Posts: 106

Rep: Reputation: 15
For your screen:

if you use a frame buffer:
edit the file /etc/lilo.conf as root.
and set the vga=
I don`t know the codes by hard.
You should not have a hard time finding them.
Or set : vga=ask
Then runn /sbin/lilo

edit you /etc/X11/XF86Config as root.
Old 04-07-2002, 06:44 AM   #3
Registered: May 2001
Posts: 42

Original Poster
Rep: Reputation: 15
OK I'll try that.

What If I'm running KDE???
Old 04-07-2002, 07:03 AM   #4
Registered: Apr 2002
Location: The Netherlands
Distribution: Slackware, openBSD
Posts: 106

Rep: Reputation: 15
In a nutshell.
KDE is the desktop managar.
It hendels the event`s on your desktop.
Your screen is set bij the X server.
KDE is the program that controles your desktop.
KDE it self uses the X server.

If you use a framebuffer the Xserver uses the res of the framebuffer.
Else it uses the reselution you configured in the /etc/XF86Config
BTW there are programes that can help you configure your X settings.

good luck
Old 04-07-2002, 11:56 PM   #5
Registered: Jun 2001
Location: Fairfax, California
Distribution: RH 9.0, RH 7.3, Mandrake 8.0
Posts: 986

Rep: Reputation: 30
For Redhat, you can use Xconfigurator to set up your resolutions. Also, see Aussie's post in this thread concerning checking/editing your resolutions manually in /etc/X11/XF86Config-4.

Once you set multiple resolutions in the config file, you can change your res on-the-fly in Gnome, KDE, etc. by simultaneously holding down CTRL+ALT+the numeric keypad's "+" or "-" key.


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