[vbox-dev] vboxvideo does always use 1280x768

Lisa Denia eiffel56 at gmail.com
Sun Feb 24 20:24:20 GMT 2008


Hi,

thank you for your answer, but that workaround does not work :/.
If I boot the VM with 1MB video ram, X fails to init. I just get a black
screen. I also tried to disable the splash, same effect.
And the X log is getting more interesting:

(EE) VBoxVideo(0): Failed to obtain the last resolution requested by the
guest, rc=-4
(EE) VBoxVideo(0): Unable to set up virtual screen size of 1280x768 with
1024Kb of video memory. Please increase the video memory size.

I've included the entire X log.

Thank you,
Lisa Denia

Alexey Eremenko wrote:
> On Sun, Feb 24, 2008 at 4:06 AM, Lisa Denia <eiffel56 at gmail.com> wrote:
> > Hello,
> >
> >  I've built VirtualBox from SVN, revision 7024. It works great, but the
> >  vboxvideo module for Linux/X has a little bug.
> >  It does _always_ use 1280x768, regardless of what you define in
> >  xorg.conf. You can later choose another resolution, e.g. with
> >  "gnome-display-properties" from Gnome or even xrandr(I think they are
> >  just the same ;)).
> >  The bug is definitively in the guest additions themselves, if I install
> >  an older guest additions package everything works as expected.
> >
> >  There is also an interesting line in /var/log/Xorg.0.log in the guest:
> >  (EE) VBoxVideo(0): Failed to obtain the last resolution requested by the
> >  guest, rc=-4.
> >
> >  I've tested Ubuntu 7.10 and 8.04 Alpha5 as guests, host is Ubuntu 7.10.
> >
> >  Thank you,
> 
> One possibility to workaround it, is to lower your Video RAM to 1MB.
> This will limit resolution to 800x600.
> 
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