Re: [2.6.1] fbdev console: can't load vga=791 and yes vga=ask!

From: Xan
Date: Tue Jan 27 2004 - 13:02:07 EST


Dimarts 27 Gener 2004 14:19, en/na Kiko Piris (<Kiko Piris
<kernel@xxxxxxxxxxxxx>>) va escriure:

> On 27/01/2004 at 13:24, Xan wrote:
> > Sorry. My graphics cards is ATI Radeon 9200.
>
> Same graphics card here [1]. _Almost_ same problem:
>
> I booted 2.6.1 with vga=795. It booted fine.

I did _not_ booted fine. I tried if with vga=795 it booted fine as you and the
same result as 791 obtained: black screen until X window appears. When I
switch to pty, black screen or color (and deformed) puzzle of X window
contain.

>
> In 2.6.2-rc[12] I get a blank screen booting with that vga parameter.
>
> With 2.6.1 if I tried to use radeonfb, system just booted with a vga
> console and no fbdevice was available. If I try to use radeonfb in
> 2.6.2-rc[12] it only works with 640x480 resolution (any other resolution
> results in an unsupported frequency on my monitor, system boots fine,
> tough).
>
> _Plus_, if I try to change the resolution (with fbset) on my radeonfb
> console, it changes; but when I switch to another tty, the monitor gets
> an unsupported frequency again and the only way to restore the image is
> to blindly set the resolution again to 640x480 with fbset.
>
> Relevant part of config follws:
>
> $ cat /boot/config-2.6.2-rc2 | grep ^CONFIG | egrep -i "fb|radeon|console"
> CONFIG_VT_CONSOLE=y
> CONFIG_HW_CONSOLE=y
> CONFIG_DRM_RADEON=m
> CONFIG_FB=y
> CONFIG_FB_VESA=y
> CONFIG_FB_RADEON=y
> CONFIG_VGA_CONSOLE=y
> CONFIG_DUMMY_CONSOLE=y
> CONFIG_FRAMEBUFFER_CONSOLE=y
> CONFIG_PCI_CONSOLE=y
>

I put the same in console and I obtain the same as you.
It's rare thing: I could promise that I compiled 2.6.0 with the same
configuration and it worked.

We have to download 2.6.0 and try....

> This output is exactly the same for 2.6.1, 2.6.2-rc1 and 2.6.2-rc2.
>
> Please, let me know if I can provide any additional information.
>
> Thanks in advance.
>

Can you explain me what means 791, 795, ... and what number belongs to
1024x768 and 16 colors, and if 800x600 and 256?...

Thank you very much,
Xan.

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