Hi Pedro, usually defaults in libvirt are aligned at max-compatibility not max-performance. You can make qxl faster by ensuring you are using spice, but I think it is the default as well. If you happen to know a better but still very compatible default setting I'd recommend to suggest to upstream and we try to follow as we can.
"Can Follow" is the second part of your request- virtio GL enablement. This is based on virgl which is rather new still. The first time we enabled in Debian plenty of things broke, now it is enabled there again but still shows issues (jsut one new yesterday I think). In addition it is not yet super-hardened yet and might be a guest-to-host exploitable risk which is part of the reason why to enable virgl we are still waiting to complete the MIR [1] at [2]. You are not the first to ask, and in fact I'm the one filing [2] and polling on it every now and then :-/ TL;DR: - for the qxl default alternatives I'd recommend to discuss upstream - for virgl help making it more secure and maybe give [2] a bump by adding a comment I think the bug contains nothing new in the sense of a "bug to fix" in addition to those. I'll set it to incomplete for now, if you happen to drive an upstream discussion on default please report back here with the link to the MailingList or their Bug tracker - so that one can find it from here. [1]: https://wiki.ubuntu.com/MainInclusionProcess [2]: https://bugs.launchpad.net/ubuntu/+source/virglrenderer/+bug/1657409 ** Changed in: virt-manager (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1784896 Title: Poor graphics performance even with Ubuntu guests To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virt-manager/+bug/1784896/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs