No Screen res better then 800 x 600 with VirtualBox

[wmrobins]

I'm running trying to run 32 bit, 8.04 and KDE 4.1 in as a virtual mech. on a computer running 64 bit, 8.04, and KDE 3.5.
Everything runs okay except the only screen resolutions I have a choice of are 640 X 480 or 800 X 600.

I get a full range of choices running Xp and KDE 3.5 as virtual mech. It's only KDE 4 that gives me problems.


Anybody got any ideas?

Thanks in advance,

wmrobins

[MoonRise]

Re: No Screen res better then 800 x 600 with VirtualBox

You need to install the Guest Additions. This should help. It is actually taken from the help file.

4.3.1. Installing the Linux Guest Additions
The VirtualBox Guest Additions for Linux are provided on the same ISO CD-ROM as the Additions for Windows described above. They also come with an installation program guiding you through the setup process, although,
due to the significant differences between Linux distributions, installation may be slightly more complex.
Installation involves the following steps:
Before installing the Guest Additions, you will have to prepare your guest system for building external kernel modules.
This is exactly the same process as described in Section 2.3.2, “The VirtualBox kernel module”, except that this step
must now be performed in your Linux guest instead of on a Linux host system, as described there.
Mount the VBoxGuestAdditions.iso file as your Linux guest's virtual CD-ROM drive, exactly the same way as described
for a Windows guest in Section 4.2.1.1, “Mounting the Additions ISO file”.
Change to the directory where your CD-ROM drive is mounted and execute as root:
sh ./VBoxLinuxAdditions.run
The VirtualBox Guest Additions contain several different drivers. If for any reason you do not wish to install them all, 
you can specify the ones which you wish on the command line - for example
sh ./VBoxAdditions.run x11
to install the X Window graphic drivers. Type in the command
sh ./VBoxAdditions.run help
for more information.
4.3.2. Video acceleration and high resolution graphics modes
In Linux guests, VirtualBox video acceleration is available through the X Window System. Typically, in today's Linux
distributions, this will be the X.Org server. During the installation process, X will be set up to use the VirtualBox video
driver. On recent Linux guests (that is, guests running X.Org server version 1.3 or later) graphics modes can be
selected by resizing the VirtualBox window using the mouse, or sending video mode hints using the VBoxManage tool.
If you are only using recent Linux guests systems, you can skip the rest of this section. On older guest systems,
whatever graphics modes were set up before the installation will be used. If these modes do not suit your
requirements, you can change your setup by editing the configuration file of the X server, usually found in /etc/X11
xorg.conf.
VirtualBox can use any default X graphics mode which fits into the virtual video memory allocated to the virtual 
Machine, as described in Section 3.7.1, “General settings”. You can also add your own modes to the X server
configuration file. You simply need to add them to the "Modes" list in the "Display" subsection of the "Screen" section.
For example, the section shown here has a custom 2048x800 resolution mode added:
Section "Screen"
    Identifier  "Default Screen"
    Device    "VirtualBox graphics card"
    Monitor   "Generic Monitor"
    DefaultDepth 24
    SubSection "Display"
        Depth    24
        Modes    "2048x800" "800x600" "640x480"
    EndSubSection
EndSection
4.3.3. Updating the Linux Guest Additions
The Guest Additions can simply be updated by going through the installation procedure again with an updated CD-ROM image. This will replace the drivers with updated versions. You should reboot after updating the Guest Additions.

[MoonRise]

Re: No Screen res better then 800 x 600 with VirtualBox

Took FOREVER to find this. Hope it helps as well. It was what got me up and running. Now Guest Additions for a Windows XP Guest does great, don't have too many problems. With how X is automatic now in 8.04 and newer versions, I'm not too sure if this will apply.

http://kubuntuforums.net/forums/inde...9609#msg119609

[wmrobins]

Re: No Screen res better then 800 x 600 with VirtualBox

Well, I've tried editing xorg.conf. I had installed the guest additions. But, no joy. Thanks for the suggestions though.

wmrobins

[MoonRise]

Re: No Screen res better then 800 x 600 with VirtualBox

What version of Linux/Kubuntu/Ubunut are you running as Guest?

[wmrobins]

Re: No Screen res better then 800 x 600 with VirtualBox

32 bit 8.04 and KDE 4.1

[MoonRise]

Re: No Screen res better then 800 x 600 with VirtualBox

8.04 KDE 4.1

That may be why. I haven't done any testing with 8.04 KDE4.1 as a guest, so I can't say for sure how to correct.