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Re: X11 dom0 on xen?



Andrew Cagney <andrew.cagney%gmail.com@localhost> writes:

> Looking in the archives I see there were some problems with netbsd
> current as dom0 on xen.  I'm wondering if there was any success in
> figuring this out  - I suspect I might have the same problem on my
> laptop:
>
> - during boot console isn't switched to 720p text mode
> - X11 starts but all I see is the laptop's POST screen

I have not tried this, or even ever tried to run X11 on Xen.

My impression is that the dom0 has access to all the PCI devices and
therefore mostly should behave like a non-xen kernel.   However, xen
usage tends to be serverish, where many don't want X, so it's not so
well shaken out.

One wrinkle is how xen uses the console and hands it off to the dom0.
That could be leaving the console in a bad state.  It might be possible
to tell xen to use a serial port, but you might not have a serial port.
You might try not trying to change the text console font, but only to do
X11.

My advice is to first make sure you can run X11 satisfactorily on the
same machine, booting a GENERIC kernel instead of xen and the dom0.
This is the normal recovery/fallback config, and there is an example in
boot.cfg(5).  Maybe you already did this.

The next step is to look at the XEN3_DOM0 vs GENERIC config files, and
see what's different.  It may be that the kernel you booted does not
work not because it's xen, but because of something else different.

But, it could be a xen-related bug too, of course.

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