Hi, On Tue, Mar 23, 2021 at 10:50:08AM +0000, Dr. Jennifer Nussbaum wrote: > On Tuesday, March 23, 2021, 04:04:27 AM EDT, Julien Rope <jrope@xxxxxxxxxx> wrote: > > > > I still am offered only 2952 x 1781 in the guest. With those > > settings except 'heads="2"', it is exactly> > the same--that > > resolution, and only one display, "Virtual-0".> > > > As > > mentioned in my original message, when I use the Virtio > > instead of the QXL device, I do get 4K,> > though again > > choosing 'heads="2"' doesn't give me an additional display > > in the guest. (Curiously> > the one display I get is > > "Virtual-1" rather than "Virtual-0".) With this device > > there's no option for> > changing the video memory in the > > XML.> > > > > The numbering (Virtual-0 vs Virtual-1) is expected - this is > >not an issue.> Do you actually get the choice of > >additional displays in virt-viewer (not in the guest) ?> Under > >the top menu "View -> Displays" you should have a list of > >available displays. Do you see them ? Are they enabled or > >grayed out ? > Ah, that is some kind of progress! > This is not visible in the integrated viewer in virt-manager, > but when I launch virt-viewer on itsown, yes, I do get the > option of two displays. Although they might share some code, they are different applications. Virt manager, AFAIK, never supported multi-monitor > And enabling them both does allow me to launcha second display. > I cannot then launch the display settings in the guest, > however; it segfaults right away. I'll look into that. The sefault happens ins virt-viewer? You can run with --spice-debug to know what's going on and a backtrace and help too. > But xrandr does report two displays; the second one is 2135 x > 1647, though. Not clear why Istill don't get a 4K option with > QXL. The whole multi-monitor + QXL works from the guest kernel perspective as if another monitor is being plugged in (by QEMU) ~ so, what are you running in your Guest? The kernel version + Desktop enviroment > If I try this with the virtio device (instead of QXL) with two > heads, it's similar: a separate virt-viewer instance allows me > to launch two displays; in this case xrandr reports 4K > displays. But as before, the display settings manager segfaults > right away. Exploring further. Jen Ah, it is the guest's display settings that segfaults. Quite odd! Cheers, Victor
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