Hi, qxl kms driver has been converted over to atomic mode setting recently. Caused some problems, most are fixed meanwhile. See https://bugzilla.kernel.org/show_bug.cgi?id=196777 One pretty fundamental issue sticks though: The qxl virtual hardware doesn't support pageflip (see comment 11 in the bug linked above). Which is a problem for wayland because it is a heavy pageflip user. The kernel driver has to go though a destroy-primary-surface + create- primary-surface cycle, which causes visible flicker because spice client goes into "waiting for display ..." mode temporarily. So, the options I see are: (1) Declare qxl deprecated, promote virtio-vga instead. (2) Pimp the qxl hardware, add page-flip support. Requires changes in spice-server (due to lazy rendering), qemu qxl emulation and guest kernel driver. Should be transparent to spice-client and guest userspace (aka xorg qxl driver). (3) Paper over the issue in the spice client, i.e. only go into "waiting for display ..." mode in case the destroy-primary- surface message isn't followed by a create-primary-surface message within a short timeframe. Comments? Other suggestions? cheers, Gerd _______________________________________________ Spice-devel mailing list Spice-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/spice-devel