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Re: [Xen-users] Xen console on Bladecenter remote KVM



Hi,

I've not had any experience with the situation you describe, so I'm afraid I'm 
very much making guesses here...  maybe we can narrow things down a bit, 
though.

> when using Xen on our Bladecenter with the advanced management module
> everything works fine, but as soon as I switch the KVM to another blade
> and then switch back to xen machine, vga output is unavailable (due to
> wrong resolution or hz frequency? But it works if I don't switch away).

How is this manifesting?  Does the bladecentre just grumble at you, do you get 
garbage output or something else?

> The machine itself works, only vga output is gone after switching kvm
> away from the box.
>
> I tried several vga= options to the booted xenified linux kernel, none
> has helped so far.

Are you using this in text mode?  Does this problem occur if you run an X 
server?  Have you changed things from the default VGA text resolution?

> When booting the machine without hypervisor, vga output works great
> while switching kvm consoles.
>
> I am using Debian Etch amd64 with included Xen 3.0.3 and
> 2.6.18-4-xen-amd64 kernel.
>
> Any suggestions?

As an interim measure, perhaps you could administer xen and dom0 over the 
serial console and avoid using VGA altogether?

Cheers,
Mark
-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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