With the same Ubuntu 12.04.5 host (qemu-kvm 1.0+noroms-0ubuntu14.21) I got the following test results.
For Ubuntu 12.04.5 LTS i386 guest I got: * without "-vga" I got screen corruption (see comment 64) * with "-vga std" and "-vga vmware" it works as expected * with "-vga qxl" QEMU boots to its console For Ubuntu 14.04.2 LTS i386 guest I got: * without "-vga" I got screen corruption (Unity looks better, but others - not) * with "-vga std" and "-vga vmware" it works as expected * with "-vga qxl" QEMU boots to its console For Ubuntu 14.10 i386 guest I got: * without "-vga" I got screen corruption (Unity looks better, but others - not) * with "-vga std" and "-vga vmware" it works as expected * with "-vga qxl" QEMU boots to its console For Ubuntu 15.04 beta2 i386 guest I got: * without "-vga" it does not boot to Unity session (see bug 1437740) * with "-vga std" and "-vga vmware" it works as expected * with "-vga qxl" QEMU boots to its console With "-vga wmvare" I always got the highest screen resolution. I summarized test results in Google Docs table ( see https://docs.google.com/spreadsheets/d/1WsjQ8nz3b6dhYGdM3xxkdxZHp27j9ggvrRPcZbm9Cao/edit?usp=sharing ). So I suggest you to add simple "boot livecd/liveusb in kvm" test to livecd/liveusb testing procedure. Ubuntu should not use "cirrus" driver while being guest, it should use "vesa". Thank you! ** Tags added: precise trusty utopic vivid -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-cirrus in Ubuntu. https://bugs.launchpad.net/bugs/1080674 Title: [QEMU] Corrupted desktop screen for raring desktop installation in QEMU guest (Cirrus graphics). Affects KVM but not VBox. To manage notifications about this bug go to: https://bugs.launchpad.net/cairo/+bug/1080674/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
