Ubuntu
qemu package

qemu-kvm virtual machines crash with some but not all ubuntu flavors when vmvga video is selected

Bug #1426893 reported by ullix
8
This bug affects 1 person
Affects Status Importance Assigned to Milestone
qemu (Ubuntu)
Expired
Undecided
Unassigned

Bug Description

I create my VMs with virt-manager and tried "Video Modell vmvga" in order to let the VM use my whole screen of 1920x1200. This works with some Ubuntu flavours, but others crash on login:

The host is Ubuntu 12.04.05 LTS, using Gnome-classic as GUI. All VMs were updated to latest state.

All VMs run, when "Video Modell cirrus" is selected, however, this allows only a max display resolution of 1280*1024, insufficient for some graphics work.

But when running "Video Modell vmvga" (all being otherwise identically configured):

Ubuntu Unity 14.04 .................. ok
Kubuntu 14.04 .......................... ok (occasional crashes)
Ubuntu Cinnamon 14.04 ......... shows login screen, crashes on login (this VM was cloned from Unity, Cinnamon then added)
Ubuntu Gnome 14.04................ shows login screen, crashes on login (installed from fresh download)
Ubuntu Mate 14.04.01 ............. shows login screen, crashes on login (installed from fresh download)

Ubuntu Unity has such tiny fonts that usage is almost impossible. Only Kubuntu is usable in that regard, but this crashes occasionally

Revision history for this message
Martin Pitt (pitti) wrote :

Please be more specific what yo umean by "crashes on login". Do you have some Apport crash reports which you could upload? If nothing actually crashed, but you just can't see anything on the screen, can you ssh into the VM and retrieve dmesg, /var/log/Xorg.0.log?

affects: util-linux (Ubuntu) → qemu (Ubuntu)
Changed in qemu (Ubuntu):
status: New → Incomplete
Revision history for this message
ullix (ullix) wrote :

"Carshes on login" means that immediately after I press the login button the VM shuts off and the virt-manager is reporting it as "Guest not running".

Where should an apport be created? In the VM? On the host I see nothing, and wouldn't know where to look.

Serge Hallyn (serge-hallyn)
Changed in qemu (Ubuntu):
status: Incomplete → New
Revision history for this message
Stefan Bader (smb) wrote :

Initially it sounded a bit like some part of the graphics causes issues. But then this would hang or drop to a textual mode and not shut off the VM. If this is still happening, is the shut down immediate (like ripping out power) or slightly delayed (doing a shutdown sequence like if the power button was pressed on a real system)?

There might be further info on the host in /var/log/syslog, /var/log/libvirt/libvirtd.log, and in a qemu log named after the VM name under /var/log/libvirt/qemu/. If you can still reproduce, the shutdown still, please attach the above logs here. Thanks.

Changed in qemu (Ubuntu):
status: New → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for qemu (Ubuntu) because there has been no activity for 60 days.]

Changed in qemu (Ubuntu):
status: Incomplete → Expired
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