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xen-users
Re: Help needed running an X11 environment inside a DomU (Re: [Xen-users
James,
thanks for that explanation. I have a DomU kernel with FB support, and I
am now able to configure X to use the /dev/fb0 device for graphical
output (although only 800*600 at the moment, but let's see how to get
that configured properly).
James Dingwall wrote:
You need to have CONFIG_XEN_FRAMEBUFFER support in the domU kernel and
create a virtual framebuffer device in the domU config vfb = [
'type=vnc,vncunused=1' ] (see the example configuration files for other
parameters). X then needs to use the fbdev driver. In this example you
would connect to the graphical interface with a VNC client.
As stated above, that works - but it requires me to have a special
Xorg.conf when using my DomU as a PV image, and another Xorg.conf for
HVM use, as both use different HW devices.
Without this requirement, I could boot up the unmodified VM without
further modifications from outside (when having a distro which comes
with xvc0 being configured correctly in /etc/inittab and
/etc/securetty), but without a modified Xorg conf, I will not be able to
start X in the PV guest. So at some point a modification inside the VM
has to happen to migrate a formerly HVM guest to PV.
Regards,
Martin
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