cannot change screen resolution

[boge]

Hi,

after bootup the screen resolutiion is at a low 640x480! I tried with the boot-option "screen=1280x1024" , but apparantly this is not evaluated.
I also tried to set the mode via the "kxconfig" command, the new mode is accepted, but after a restart of X the resolution is back at 640x480.

Hardware: monitor is a DELL 7005, Video card is detected as a Generic i810 (in Windows it is listed as a Intel 82865G Graphics Controller).

Can anyone give me an idea how to solve this thing?

tia,

Etienne

[mzilikazi]

Hi,

after bootup the screen resolutiion is at a low 640x480!

What? You don't like 640x480? :)
If you're booting from live cd then you may want to have a look at persistent home feature that saves your configuration options.


I tried with the boot-option "screen=1280x1024" , but apparantly this is not evaluated.

It is possible to also use multiple cheatcodes in conjunction. Perhaps you need to also specify driver and/or refresh rates. Please see the Docs section for cheat codes.

[shah]

You could try edit your /etc/X11/X86FConfig-4 file. This might not work.
Go to Section "Screen" --->modes:
Try add and arrage your resolution mode with desired mode first. Ex:

Modes "1280x1024" "1024x768" "800x600" "640x480" or you could remove "640x480" if you want to.

Edit this line to other subsection too.

Don't blame me this won't work. :D If you cannot start X after done this, restore you screen mode using mc.
:D :D

[bongski55]

Boge,
It seems that your graphics card is NOT detected by knoppix properly and it is using a "generic" driver just to be able to display the UI.This happened to me in a similar manner with my savage card.Try using fb1024x768 at boot up.
Alternatively you can remaster knoppix like I did and insert the proper driver for you graphics card like I did.(http://www.knoppix.net/forum/viewtopic.php?t=11114)

[DellGx260]

Is it possible your Bios reservs only 1 Meg of ram for video?
Try reserving more.(8 meg is max for me).
Hi.

[rrfish72]

I had the same problem. When I changed that setting somewhere I didn't like it and tried to change it back but couldn't. I even tried the lilo.conf option but that didn't change it so I just reinstalled and won't mess with the screen resolution anymore.