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authorChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:24:58 +0000
committerChristian Krinitsin <mail@krinitsin.com>2025-06-30 12:27:06 +0000
commit33606b41d35115f887ea688b1a16f2ff85bf2fe4 (patch)
tree406b2c7b19a087ba437c68f3dbf0b589fa1d6150 /results/scraper/launchpad-without-comments/1818398
parentadedf8771bc4de3113041ca21bd4d0d1c0014b6a (diff)
downloadqemu-analysis-33606b41d35115f887ea688b1a16f2ff85bf2fe4.tar.gz
qemu-analysis-33606b41d35115f887ea688b1a16f2ff85bf2fe4.zip
add launchpad bug reports without comments
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+No evdev mouse passthrough with virtio-vga or kvm
+
+Hi,
+
+Using qemu version 3.1.0-1 on a host with the latest Archlinux 64-bit distribution, and running the same OS as guest, the mouse doesn't work when using both evdev passthrough and virtio-vga, or when using both evdev passthrough and kvm.
+
+The following command line runs a machine that does not receive any mouse event:
+qemu-system-x86_64 -machine type=q35,accel=kvm -cpu host -accel kvm -boot order=dc,menu=on -m size=2048 -net nic -device virtio-vga -device intel-hda -name Linux -drive file=/mnt/data/nobody/linux/arch.img,if=virtio -display sdl,gl=on -full-screen -net user -D /dev/null -rtc base=utc,clock=host,driftfix=slew -nodefaults -object input-linux,id=kbd1,evdev=/dev/input/event6,grab_all=on,repeat=on -object input-linux,id=mouse1,evdev=/dev/input/event7
+
+But with this command line, removing virtio-vga and kvm, the mouse works as expected:
+qemu-system-x86_64 -machine type=q35 -boot order=dc,menu=on -m size=2048 -net nic -device cirrus-vga -device intel-hda -name Linux -drive file=/mnt/data/nobody/linux/arch.img,if=virtio -display sdl,gl=on -full-screen -net user -D /dev/null -rtc base=utc,clock=host,driftfix=slew -nodefaults -object input-linux,id=kbd1,evdev=/dev/input/event6,grab_all=on,repeat=on -object input-linux,id=mouse1,evdev=/dev/input/event7
+
+Note: Passing a keyboard by evdev in the same way always works, the problem is mouse specific.
+
+Thanks in advance for the analysis,
+gatestallman
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