QEMU always provides a PS/2 to its virtual machines. It then provides a GUI window for the VM, or another protocol like spice is used to allow programs like remote-viewer to provide a GUI window. It's PS/2 emulation is horrible for its positioning, in xorg and gpm. There's an offset involved that changes as you go out of the GUI window (within it can be running a console and gpm), so there are areas of the screen you can't get to, when you leave the window to somewhere else in the host, the cursor "jumps", and at least in xorg, where a click registers isn't where the cursor is displayed on the screen. A long time ago, QEMU created an emulated USB tablet device which gives absolute positioning, which fixes all of these problems with xorg. This is through a "-usbdevice tablet" argument, and a few others. Using it, dmesg includes: "input: QEMU Virtio Tablet as /devices/pci0000:00/0000:00:02.0/virtio0/input/input3". I don't need to do any configuration for xorg to pick it up properly. If I run evtest, it shows event2 is "QEMU Virtio Tablet", and event4 is "ImExPS/2 Generic Explorer Mouse". If I run evtest on event2 (tablet), if shows button clicks and cursor positioning using absolute coordinates. They appear proper, as the x value goes right to 0 at the left edge. If I run evtest on event4 (PS/2), it shows nothing. No button clicks, and no cursor positioning. If I run the default "gpm -m /dev/input/mice -t imps2", I get a text mouse cursor and it registers button clicks. Moving the mouse tracks in the right direction, but the QEMU PS/2 problems that happen under xorg come up. There are areas you can't get to, and the mouse "jumps" when you go out of the GUI window. I'm confused by this, because I think QEMU is no longer sending non-absolute positioning to the PS/2 mouse. I think it's there but receives nothing. So, I think gpm is reading through the USB tablet. I wouldn't think the tablet could be giving non-absolute positioning to gpm. Maybe it's reading the absolute coordinates and using them relatively, but that doesn't seem to match the movement I see either. I see "* summa" for an astericked type, so tried "gpm -m /dev/input/mouse0 -t summa". (With mouse0 pointing to the pci id for the tablet.) It never shows a cursor, and when I move the mouse around, it does random things like clicking and highlighting. Would a new -t driver be needed for this to work properly? "-t wacom" and "-t wp" don't run, it just exits. "-t acecad" and "-t genitizer" also randomly click and highlight on mouse movement. _______________________________________________ gpm mailing list gpm@xxxxxxxxxxxxxx https://lists.linux.it/listinfo/gpm