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+++ This bug was initially created as a clone of Bug #948717 +++ qemu-1.4.0-11.fc18.x86_64 from https://fedoraproject.org/wiki/Virtualization_Preview_Repository kernel-3.8.3-203.fc18.x86_64 qemu command line: ionice -c 3 qemu-kvm -enable-kvm -m 2048M -smp 1 -drive file=./Fedora-19-Alpha-TC4-x86_64-netinst-test.iso.qcow2,index=0,media=disk,cache=unsafe -localtime -serial file:/tmp/qemu-Fedora-19-Alpha-TC4-x86_64-netinst-test.iso.qcow2-output.log -name Fedora-19-Alpha-TC4-x86_64-netinst-test.iso.qcow2 -cdrom /local/mfabian/iso/Fedora-19-Alpha-TC4/Fedora-19-Alpha-TC4-x86_64-netinst.iso -boot c -vga qxl -display vnc=:5 -net nic -net user,hostname=Fedora-19-Alpha-TC4-x86_64-netinst-test.iso.qcow2,hostfwd=tcp::5562-:22 -monitor stdio -usb The above commandline has “-display vnc=:5”, the problem occurs with “-display sdl” as well though. The result is pixel garbage, see attached screen shot. When using “-vga std” or “-vga cirrus” instead of “-vga qxl” it works fine, no pixel garbage. --- Additional comment from Cole Robinson on 2013-04-14 21:55:06 CEST --- I can reproduce with upstream. Grab F19 boot.iso here: https://dl.fedoraproject.org/pub/alt/stage/19-Alpha-TC6/Fedora/x86_64/os/images/boot.iso And run: ./x86_64-softmmu/qemu-system-x86_64 -enable-kvm -vga qxl -display sdl -cdrom ~/boot.iso -m 2048 Doing -device qxl works fine though. I also tried an F16 live cd I had hanging around and that worked fine, so maybe it's an F19 driver issue. Alon, Gerd, thoughts? --- Additional comment from Cole Robinson on 2013-05-28 01:01:01 CEST --- Ping, any spice folks want to weigh in on this? Granted qxl->vnc shouldn't be a common setup, but people tend to try it out if hitting graphical issues and wanting to eliminate spice from the equation (for better or worse). --- Additional comment from Steve Tyler on 2013-07-31 15:33:52 CEST --- Confirming severe display corruption with the "-vga qxl" option. With the "-vga std" option, there is no corruption. By blindly clicking in the upper right corner, pressing the down-arrow four times, and pressing Enter twice, it is possible to power off the VM, if the corrupt display shows parts of the Welcome dialog. Steps to reproduce: $ qemu-kvm -m 4096 -cdrom ~/xfr/fedora/F19/Fedora-Live-Desktop-x86_64-19-1.iso -vga qxl Version: qemu-1.4.2-4.fc19.x86_64 kernel 3.10.3-300.fc19.x86_64 --- Additional comment from Jan Kratochvil on 2013-08-19 20:36:29 CEST --- qemu-system-x86-1.4.2-5.fc19.x86_64 tigervnc-1.3.0-3.fc19.x86_64 /usr/bin/qemu-kvm -m 2048 -cdrom Fedora-19-x86_64-DVD.iso -boot d -vnc :10 -vga qxl --- Additional comment from Mike FABIAN on 2013-08-31 08:07:40 CEST --- The problem still exists with Fedora-20-Alpha-TC2-x86_64-netinst.iso and qemu-1.6.0-5.fc19.x86_64
patches posted.
Can not reproduce this issue: First: host kernel: 2.6.32-417.el6.x86_64 qemu-kvm-0.12.1.2-2.400.el6.x86_64 Command line as follows: ionice -c 3 /usr/libexec/qemu-kvm -M pc -nodefaults -cpu SandyBridge -enable-kvm -m 4G -smp 2,sockets=1,cores=2,threads=1 -name test -rtc base=localtime,clock=host,driftfix=slew -k en-us -boot menu=on -vga qxl -vnc :5 -monitor stdio ... Second: host kernel: 3.9.9-201.fc18.x86_64 qemu-kvm-1.2.2-13.fc18.x86_64 Command line as follows: ionice -c 3 qemu-kvm -enable-kvm -m 2048M -smp 1 -drive file=RHEL_65_64.qcow2,media=disk,cache=unsafe -localtime -boot c -vga qxl -display sdl -monitor stdio Actual Results: Only show pixel garbage before login screen, but very fast passed. the same result with “-vga std” or “-vga cirrus”.
Re #3: RHEL-6 doesn't trigger it, try RHEL-7 or Fedora-19 as guest.
Created attachment 798084 [details] pixel garbage
Reproduce with host kernel 2.6.32-417.el6.x86_64 guest rhel7.0 The result is pixel garbage, see attached "attachment 798084 [details]"
Reproduce this bug on qemu-kvm-0.12.1.2-2.402.el6.x86_64. Host: qemu-kvm-0.12.1.2-2.402.el6.x86_64 kernel-2.6.32-477.el6.x86_64 Guest: RHEL7-64 kernel-3.10.0-121.el7.x86_64 Cli: /usr/libexec/qemu-kvm \ -M pc \ -cpu SandyBridge \ -m 4G \ -smp 4,sockets=2,cores=2,threads=1,maxcpus=160 \ -enable-kvm \ -name rhel6.6 \ -uuid 990ea161-6b67-47b2-b803-19fb01d30d12 \ -smbios type=1,manufacturer='Red Hat',product='RHEV Hypervisor',version=el6,serial=koTUXQrb,uuid=feebc8fd-f8b0-4e75-abc3-e63fcdb67170 \ -k en-us \ -rtc base=localtime,clock=host,driftfix=slew \ -nodefaults \ -monitor stdio \ -qmp tcp:0:6666,server,nowait \ -boot menu=on,strict=on \ -bios /usr/share/seabios/bios.bin \ -chardev socket,id=seabios,path=/tmp/seabios,server,nowait \ -device isa-debugcon,chardev=seabios,iobase=0x402 \ -monitor unix:/tmp/guest-sock,server,nowait \ -vga qxl \ -vnc :0 \ -drive file=/home/rhel7-64.qcow2,if=none,id=drive-virtio-disk0,format=qcow2,cache=none,werror=stop,rerror=stop,aio=threads \ -device virtio-blk-pci,scsi=off,bus=pci.0,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \ Result: Display pixel garbage.
Created attachment 910666 [details] snapshot of guest
Test this bug on qemu-kvm-0.12.1.2-2.428.el6.x86_64, Guest hang during boot, and display black, will attach the screenshot.
Created attachment 910670 [details] screenshot
Hi Gerd, 1. Try reproduce this bug with "qxl+vnc" as bug 948717#c2 and 948717#c4 mentioned, since "-display" option has been removed from qemu-kvm, Please help check comment#11 and comment#13, if any problem please correct me. 2. Does qxl+vnc support officially, we need test this scenario in rhel6.6? Thanks, Mazhang.
Screenshot shows two text console lines. No pixel garbage -> bug is fixed. Guest not booting is most likely a separate (guest) bug. Does that happen with vnc only or is spice affected too?
Just have a try, spice+qxl works well.
1. According to comment#11 comment#13 and comment#16 setting this bug to verified. 2. File a new bug 1112078 against guest desktop booting fails.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2014-1490.html