Package: qemu Version: 1:2.10.0+dfsg-2 Followup-For: Bug #879193 I've encountered similar mouse problems with dfsg-2 that were not present with dfsg-1, but i'm currently not able to reproduce it in a deterministic way.
Here is my qemu's setup, using Windows 10 as guest OS. qemu-system-x86_64 \ -name windows10pro-64 \ -machine type=pc,accel=kvm,vmport=off,usb=on \ -smp sockets=1,cores=1,threads=2 \ -m 1536M \ -device usb-tablet \ -device qxl-vga \ -device e1000,netdev=net0 \ -device ich9-ahci,id=sata0 \ -device ide-hd,bus=sata0.0,drive=hd0,bootindex=1 \ -device ide-cd,bus=sata0.1,drive=hd1,bootindex=2 \ -netdev user,id=net0 \ -drive if=none,id=hd0,format=qcow2,file="$imgdir/hd30GB_win10-64.qcow2" \ -drive if=none,id=hd1,format=raw,file="$imgdir/iso/microsoft/Win10_1607_Italian_x64.iso" \ -rtc base=localtime \ & With this configuration, in dfsg-1 the mouse pointer were able to escape the guest window without pressing CTRL-ALT. Now with dfsg-2 that mostly works but on two occasions I've found that the mouse could not escape, perhaps as Stéphane reported, even pressing CTRL-ALT. But for me there was a strange exception: i was able to escape only from one side of the window. The first time from the top, the second time from the left. That happened regardless of the CTRL-ALT pressing. However if I replace "usb-tablet" with "usb-mouse", the mouse seems to work correctly, with grabbing controlled only by CTRL-ALT. I've not tested with the integrated PS/2 mouse. Stéphane, what's your qemu's commandline? Cesare. -- System Information: Debian Release: buster/sid APT prefers unstable APT policy: (500, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 4.13.0-1-amd64 (SMP w/4 CPU cores) Locale: LANG=it_IT.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8), LANGUAGE=it_IT.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages qemu depends on: ii qemu-system 1:2.10.0+dfsg-2 ii qemu-user 1:2.10.0+dfsg-2 ii qemu-utils 1:2.10.0+dfsg-2 qemu recommends no packages. Versions of packages qemu suggests: ii qemu-user-static 1:2.10.0+dfsg-2 -- no debconf information