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Old 09-07-2004, 08:33 PM   #1
Registered: Jun 2003
Posts: 58

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Changing Console (CLI) Resolution

(This is on Debian, but that's probably irrelevant.)

How do I set the CLI resolution? I don't have X but when I boot into kernel 2.4 (which was from the original Debian installation) I get a very high resolution. However when I try booting into kernel 2.6.* (which was just from a binary package), I get what the normal resolution (i.e., huge, and the same as the resolutions of BIOS, etc.).

I've tried setting vga=ask in /boot/grub/menu.lst but none of the listed resolutions were nearly as big as the original. And furthermore there was no such vga= argument to the 2.4 kernel, so there must be some other way of specifying the resolution.

Can anybody help me out? Thanks in advance.

I noticed something flying by at startup called 'radeonfb'. Taking a wild guess and using a command I once saw someone else type, I entered 'lsmod' and saw radeonfb there! Now I've done some more research and found that it's a module. However it's only loaded by my 2.4 kernel, not my 2.6 kernels (one of my 2.4 kernels).

I searched in /etc and /boot for all files containing 'radeonfb' but that turned up nothing. (How does the system know to load radeonfb?) I then searched for all files called '*radeonfb*' under /, which turned up some .c, .h, .o, and .ko files under /lib/modules and /usr/src.

Not quite sure what to do with these, I just went to the /lib/modules/2.6.7-1-686/kernel/drivers/video/aty/ and ran 'modprobe radeonfb'. All the characters on my screen got wiped out, though the cursor was still there, and its position seemed to indicate that my system was still working. I then ran 'rmmod radeonfb' and my screen instantly turned into a magnificent display of colors.

WHAT in the world is going on??? I am completely lost. I guess now some details like my graphics card are important. It's a Radeon Mobility 9000 (this is on a Dell Latitude D600 laptop). Thanks in advance for any help.

Last edited by overbored; 09-07-2004 at 09:27 PM.


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