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List:       debian-user
Subject:    Re: virt-manager guest does not start anymore after upgrade to bookworm / opengl is not available
From:       zithro <slack () rabbit ! lu>
Date:       2023-05-09 3:50:31
Message-ID: e2a2724b-28c0-8d9f-58fb-22e44103c6f4 () rabbit ! lu
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On 07 May 2023 16:41, Rainer Dorsch wrote:
> Hello,
> 
> after upgrading to bookworm, my windows guest does not start anymore, but
> throws an error message:
> 
> Fehler beim Starten der Domain: internal error: qemu unexpectedly closed the
> monitor: 2023-05-07T14:27:35.862395Z qemu-system-x86_64: -device
> {"driver":"virtio-vga-gl","id":"video0","max_outputs":1,"bus":"pcie.
> 0","addr":"0x1"}: opengl is not available
 >
> [snip]
 >
> I configured a virtio video device, if I remove 3D acceleration, the guest
> starts w/o a problem.
> 
> Can anybody tell what broke in the 3D acceleration during the upgrade?
> 
> Any hint or advice is welcome :-)

I'm no QEMU/openGL expert, but are you sure the "virtio-vga-gl" device 
is still supported ? Maybe you need another one ?
(I vaguely remember having a problem with an audio device which wasn't 
supported anymore).

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