ubuntu server 7.04 console framebuffer resolution
clemtak at gmail.com
Wed Sep 26 18:08:12 UTC 2007
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
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?
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
> > 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,
> > 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
> > available as modules, so how do I use the framebuffer video mode short
> > recompiling?
> > Clem
> > --
> > ubuntu-users mailing list
> > ubuntu-users at lists.ubuntu.com
> > Modify settings or unsubscribe at:
> 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
> [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.
> ubuntu-users mailing list
> ubuntu-users at lists.ubuntu.com
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