Comment 20 for bug 1834113

Avi,

Something I have realized we missed as a feedback here - or maybe I missed checking previous comments - is how your mouse is being setup for the guest. Is it being PS/2 emulated (default) or is it being given as an USB device (when qemu cmd line has "-usb -device usb-tablet"). Also, are you using SPICE protocol (perhaps with USB direction option ?).

Are you able to tell which xserver-xorg-input-XX module is being used inside the guest ? You will probably find that information from Xorg log files (check if you're using xf86-input-wacom or xserver-xorg-input-evdev or some other).

Another thing that comes to my mind as well, are you using powersaving features ? Specifically the I2C bus I'm concerned. Using "powertop", you are able to change "Runtime PM for I2C Adapter" option under the Tunables Tab (turning the power mgmt to off). I would like to know if you are able to reproduce the issue without having power management enabled for I2C. You can try disabling only I2C and then disabling all PM options as a second attempt.

From your host:

Device #1

[ 2.834320] input: WCOM488E:00 056A:488E Mouse as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-WCOM488E:00/0018:056A:488E.0001/input/input12

[ 3.064686] input: Wacom HID 488E Finger as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-1/i2c-WCOM488E:00/0018:056A:488E.0001/input/input17

Device #2

[ 2.834860] input: SYNA2393:00 06CB:7A13 Mouse as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-6/i2c-SYNA2393:00/0018:06CB:7A13.0002/input/input13

[ 2.834929] input: SYNA2393:00 06CB:7A13 Touchpad as /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-6/i2c-SYNA2393:00/0018:06CB:7A13.0002/input/input14

Could you describe your input devices ? How many mice, trackpads, pens, etc, you are using connected to the host ?

Thanks! And sorry for so many questions =).