On Sat, Sep 26, 2009 at 4:16 AM, Martin Troester <TroyMcClure@xxxxxx> wrote:
> 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).
Isn't it hardcoded to 800x600?
http://readlist.com/lists/lists.xensource.com/xen-users/7/39476.html
>
> 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.
Perhaps something like vnc/xrdp/NX would be more suitable.
--
Fajar
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