This bug was fixed in the package libvirt - 8.0.0-1ubuntu7.1
---
libvirt (8.0.0-1ubuntu7.1) jammy; urgency=medium
* d/p/u/lp-1972075-Allow-VM-to-read-sysfs-PCI-config-revision-files.patch:
apparmor allow new paths used for GL accelerated video (LP: #1972075)
-- Christian
** Tags added: verification-done
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Title:
Blank screen when viewing GL-accelerated virtio screen on 22.04
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Perfect, thank you Max!
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Title:
Blank screen when viewing GL-accelerated virtio screen on 22.04
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Hi Christian and Robie, apologies for the delay. I have confirmed that
the jammy-proposed version 8.0.0-1ubuntu7.1 of libvirt packages fixes
this issue for me.
Similar to the PPA packages, I tested using the original VM with which I
ran into this bug. I confirmed that video was not working with
@Max - it is always best to do this in the original reported environment
- do you think you could do that verification (just like you did with
the PPA)?
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Hello Max, or anyone else affected,
Accepted libvirt into jammy-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/libvirt/8.0.0-1ubuntu7.1 in a few
hours, and then in the -proposed repository.
Please help us by testing this new package. See
Completed in Kinetic, uploaded for Jammy now - waiting on the SRU teams
review to accept it.
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Title:
Blank screen when viewing GL-accelerated
This bug was fixed in the package libvirt - 8.0.0-1ubuntu8
---
libvirt (8.0.0-1ubuntu8) kinetic; urgency=medium
* d/p/u/lp-1972075-Allow-VM-to-read-sysfs-PCI-config-revision-files.patch:
apparmor allow new paths used for GL accelerated video (LP: #1972075)
-- Christian
Thanks for the test Max.
Thanks for the review Sergio.
Uploaded for Kinetic, will start the Jammy SRU once it is fully
completed there.
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Title:
Pleased to report that the PPA packages (version
8.0.0-1ubuntu7.1~jammyppa1) resolve the issue for me.
I verified by downgrading to 8.0.0-1ubuntu7, reproducing the blank
screen. Then I upgraded to 8.0.0-1ubuntu7.1~jammyppa1, and the VM
display works again. Thanks Christian!
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I merged the change upstream.
Waiting for a review, but that is happening soon.
Max: Before we upload, could you give the PPA a try if it resolves
things in your setup as well (it should as it is your change, but why
not trying to be sure).
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** Description changed:
+ [Impact]
+
+ * New GL handling code in qemu/libs triggers apparmor denials in
+Jammy and later
+
+ * Libvirt already has code that does context aware "if gl is
+ enabled then allow things". The patch extends those by the
+ new paths it needs to access.
+
Based on the to-be-committed patch upstream I have prepared these Ubuntu
uploads and test PPA.
I'd be happy about review and feedback on those.
Kinetic:
https://code.launchpad.net/~paelzer/ubuntu/+source/libvirt/+git/libvirt/+merge/422941
Jammy:
** Merge proposal linked:
https://code.launchpad.net/~paelzer/ubuntu/+source/libvirt/+git/libvirt/+merge/422941
** Merge proposal linked:
https://code.launchpad.net/~paelzer/ubuntu/+source/libvirt/+git/libvirt/+merge/422942
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Thanks Max, reviewed and approved upstream.
If there are no objections e.g. to the change of Author then I can merge it
there and start fix uploads for affected Ubuntu releases.
** Changed in: libvirt (Ubuntu Jammy)
Assignee: (unassigned) => Christian Ehrhardt (paelzer)
** Changed in:
** Also affects: libvirt (Ubuntu Jammy)
Importance: Undecided
Status: New
** Changed in: libvirt (Ubuntu Jammy)
Status: New => Triaged
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Yes, that is my upstream submission.
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Title:
Blank screen when viewing GL-accelerated virtio screen on 22.04
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Hello Max, this is your upstream submission, correct?
https://listman.redhat.com/archives/libvir-list/2022-May/231286.html
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Title:
Blank screen
I have submitted the patch upstream to the libvirt mailing list. I don't
feel qualified to assert that giving the VM read access to those sysfs
files is the right fix, but it did resolve the issue for me.
I noticed that GNOME-Boxes bug too while troubleshooting this. I did not
try the
Interesting. I did a quick search here and found many reports of other
people having this problem (or at least something very similar) in other
distros. Eventually they all led to
https://gitlab.gnome.org/GNOME/gnome-boxes/-/issues/586.
Either way, I agree that seeing these apparmor denials is
The Desktop team would like to see that one considered as high and see a
SRU to 22.04 if possible once we have a fix available
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Title:
Blank
** Tags added: desktop-lts-wishlist rls-jj-incoming
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Title:
Blank screen when viewing GL-accelerated virtio screen on 22.04
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