Screen resolution

**Matth** · 11-16-2004, 09:25 AM

Hi

I've just downloaded Knoppix and burned the CD and the first boot process just worked fine.

I have a 23" flat LCD from HP that has a resolution of 1920x1200 pixels, but Knoppix only shows me 1024x768. I have tried "knoppix fb=1920x1200" or "knoppix screen=1920x1200" but the max resolution I get is always 1024x768. And all the different options I can chose once it is up are all lower resolutions.

How can I get the higher resolution to work? Any help appreciated as I'm an absolute Linux illiterate.

Matth

**Matth** · 11-18-2004, 02:39 PM

Nobody with an idea?

:

**richb** · 11-18-2004, 05:11 PM

No help but I have the same issue trying to get to 1280x1024 and stuck at 1024x768. I also tried what you did to no avail. So I add my plea for help to yours.

**firebyrd10** · 11-19-2004, 01:49 AM

Originally Posted by richb

No help but I have the same issue trying to get to 1280x1024 and stuck at 1024x768. I also tried what you did to no avail. So I add my plea for help to yours.

One of two things have to happen first.

A: knoppix correctly finds and sets up your video card.
B: You manually change the XFree86 config file.

**Matth** · 11-19-2004, 07:24 AM

Hi Firebyrd

Does this mean, that I then have to boot from a floppy disc? Is there no way to do it by cheat codes?

As I'm a complete Linux newbie, how would I set up my video card and change the config file?

I do have a Hercules 3D Prophet III card and a HP L2335 flat panel monitor.

Thank you for your help.

Matth

**firebyrd10** · 11-20-2004, 03:10 AM

Him, not entirly sure on this one.

To really save an configs You would need to have a config file or hd-install.

Pain, yes.

There is however an option in the KNOPPIX menu to install software while running the cd. In it is an option to install nvidia drivers. Try that out.

**richb** · 11-22-2004, 06:07 PM

Originally Posted by firebyrd10

Originally Posted by richb

No help but I have the same issue trying to get to 1280x1024 and stuck at 1024x768. I also tried what you did to no avail. So I add my plea for help to yours.

One of two things have to happen first.

A: knoppix correctly finds and sets up your video card.
B: You manually change the XFree86 config file.

My XFree86 config file shows all available video modes from 1280x1024 down but only 1024x768 is available. How do I go about changing it to recognize other modes?

**slice16** · 12-12-2004, 07:00 PM

How do i find the XFree86 config file?

ive managed to find the executable...

please help...

**KanotixUser** · 12-12-2004, 07:38 PM

try the fb=(screen resolution) along with vsync=(try different values ex 60,70) cheatcode. but becareful, the wrong setting could eventually ruin the monitor. If the vsync # isnt correct the screen will be unreadable.