ubuntu server 7.04 console framebuffer resolution

[Clem Takahashi]

Thanks, Mitch.  Your suggestion works on an ubuntu desktop install, but not
on my ubuntu server install.  Just to be clear, my installation iso is
ubuntu-7.04-server-i386.iso, not ubuntu-7.04-desktop-i386.iso.  Framebuffer
doesn't show up in dmesg (using sudo just to be sure):

$ sudo dmesg | grep framebuffer
Password:
$

and adding the "vga=<vesa number>" option in menu.lst results in an
unrecognized video mode on reboot.  However, there is an fbcon module, and
three other modules that use it:

$ lsmod | grep fbcon
fbcon                  42656  0
tileblit                3584  1 fbcon
font                    9216  1 fbcon
bitblit                 6912  1 fbcon

so framebuffer is apparently not compiled into the kernel, but is loaded as
a module.  Is there a way to change the video mode, either in the init
scripts when the module is loaded, or once the machine is up?

Clem

On 9/25/07, Mitch <flik at barkingants.com> wrote:
>
> On Mon, Sep 24, 2007 at 09:46:32PM -0400, Clem Takahashi wrote:
> > Ubuntu users,
> >
> > I just loaded ubuntu server (minimal install - no X server) for the
> first
> > time and would like to use the framebuffer vesa video modes for my tty
> > console.  In slackware I could do this by setting the vga=<vesa mode,
> e.g.
> > 791> in lilo or grub.  Apparently that's not how it's done in
> Ubuntu.  There
> > is an fbcon (which presumably stands for "framebuffer console") module
> > loaded so framebuffers are apparently not compiled into the kernel but
> are
> > available as modules, so how do I use the framebuffer video mode short
> of
> > recompiling?
> >
> > Clem
>
> > --
> > ubuntu-users mailing list
> > ubuntu-users at lists.ubuntu.com
> > Modify settings or unsubscribe at:
> https://lists.ubuntu.com/mailman/listinfo/ubuntu-users
>
> I am running Edgy, and the VESA framebuffer is there... here's the
> output from 'dmesg | grep framebuffer':
>
>    [17179573.692000] vesafb: framebuffer at 0xf0000000, mapped to
> 0xf8880000, using 7680k, total 16384k
>    [17179573.824000] Console: switching to colour frame buffer device
> 160x64
>    [17179573.824000] fb0: VESA VGA frame buffer device
>
> I added 'vga=795' to the following line in /boot/grub/menu.lst...
>
>    # defoptions=quiet splash vga=795
>
> ... and then ran 'sudo update-grub'
>
> Framebuffer console works fine!
>
> I am _fairly_ certain I did this on a Feisty install as well, but since I
> switched back to Edgy, I can't be sure.
>
> --
> Mitch
>
> --
> ubuntu-users mailing list
> ubuntu-users at lists.ubuntu.com
> Modify settings or unsubscribe at:
> https://lists.ubuntu.com/mailman/listinfo/ubuntu-users
>
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