Hello. I have an ATI Radeon Mobility X1400 and so far I've been able to get 1024x768 going with it on the console. I'd like a "full" 1280x800 resolution. I can get that resolution under X via fglrx-driver but how am I supposed to obtain it when using the console?

Hi.

You must install the driver from www.ati.com. Follow the instructions and then if it doesn't work try reapplying the settings

dpkg-reconfigure xserver-xorg

Observation -> the command above works only if u run it like root (like in sudo dpkg-reconfigure xserver-xorg)

Hello. I'm afraid I don't understand, why would I reconfigure xserver-xorg when I need to get 1280x800 on the --Console-- ?

it would not change anything, X has nothing to do with it.
i don't know if what you are trying to do is possible... why do you need it anyway? (you can just open a terminal and have high resolution)
how do you know you have 1024x768 on the console? did you count them?

Have you tried the "vga=871" kernel parameter?
Do you get anything from "vbeprobe" in grubs command line?

Yes, I thought so, but I asked anyway.

I want it because I no longer want X on my system, simple as that.

Yes, I counted "them". And when I finished, I realised I had added vga=792 to the kernel line in Grub's menu.lst

Indeed, this is what I'm getting: You passed an undefined mode number.

Yes, the 'highest' resolution it can give me is 1024x768x32. As X doesn't "natively" support the 1280x800 resolution (which can be obtained via the fglrx-driver); I wasn't really expecting the console to be any different (i.e. perhaps it too need some special patches/whatever).

You could use the radeonfb framebuffer driver, but I don't have an ati card, so I haven't tried it. Add "video=radeonfb" to the kernel line in menu.lst and see if vga=871 works then.

Thanks for the suggestion, unfortunately it doesn't work.

The driver might not be compiled into the kernel, so you could try with an initrd.

I have the same model as you. So when I said to reconfigure it was because so you can select the resolution u want to be "the default 1280x800".

If I recall correctly, specifying `video=radeonfb` isn't enough. You have to pass the framebuffer driver (radeonfb) a video mode.

Try some of the following:

video=radeonfb:1280x800
video=radeonfb:1280x800@60
video=radeonfb:1280x800-16@60

The following are useful for LCDs.

video=radeonfb:1280x800,dfp
video=radeonfb:1280x800@60,dfp
video=radeonfb:1280x800-16@60,dfp

If it's stupid/uncooperative about your LCD (if you have one), you can force the issue.

video=radeonfb:1280x800,dfp,panel_yres:800
video=radeonfb:1280x800@60,dfp,panel_yres:800
video=radeonfb:1280x800-16@60,dfp,panel_yres:800

You can also try the above without the dfp parameter.

The syntax of this is as follows:

video=radeonfb:(XSIZE)x(YSIZE)[-(BPP)][,dfp][,panel_yres:(SCREEN_HEIGHT_PX)]

Where XSIZE and YSIZE are the X and Y of the resolution you want, BPP is the color depth, dfp indicates an LCD, and SCREEN_HEIGHT_PX tells the radeonfb driver how tall your monitor is in pixels. Anything in brackets is an optional parameter to the radeonfb driver.

Hope this helps!