On Wed, May 18, 2016 at 6:52 PM, Nicolás <nicolas@devels.es> wrote:
Hi,
Probably not an oVirt issue, but maybe someone can help. I've deployed a pretty basic VM (ubuntu 14.04 server, 4GB RAM, 4 CPUs, 15GB storage). Each time I install an additional desktop environment (Gnome, KDE, whatever...), CPU usage rises to 100% all time to the extreme that interacting with the machine becomes impossible (maybe a mouse movement is propagated 3 minutes later or so...).
Is X properly configured with QXL? xorg-x11-drv-qxl RPM (in Fedora / EL - I assume something similar in Ubuntu) installed, and x.org CONF file properly set up - something like: Section "Device" Identifier "qxl" Driver "qxl" EndSection Section "Screen" Identifier "screen" Device "qxl" DefaultDepth 24 SubSection "Display" Depth 24 Modes "1024x768" EndSubSection EndSection Y.
To debug this, I installed LXDE, which is a lightweight desktop environment based on Xorg. I could see there is an Xorg process consuming one of the CPUs and the machine stops responding as far as the desktop environment goes. I have not changed anything in the configuration file.
I could also see this only happens when QXL is chosen as the display driver. When CIRRUS is chosen, everything works smoothly and CPU is ~100% idle. The downside is that we want to use SPICE and CIRRUS won't allow it.
Why does this happen? Is this an OS-side driver issue? Any hint how can it be fixed?
Thanks.
Nicolás _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users