graphic: 0.709
device: 0.685
user-level: 0.642
semantic: 0.603
performance: 0.577
peripherals: 0.410
mistranslation: 0.405
network: 0.375
register: 0.347
permissions: 0.329
ppc: 0.321
vnc: 0.318
arm: 0.307
architecture: 0.305
debug: 0.300
socket: 0.297
risc-v: 0.285
files: 0.269
VMM: 0.265
PID: 0.257
boot: 0.250
virtual: 0.244
kernel: 0.238
hypervisor: 0.224
TCG: 0.220
x86: 0.199
KVM: 0.175
i386: 0.147
assembly: 0.143

Mouse moves erratically when using scroll wheel on Windows NT 4, Windows 95, and Windows 3.1 guests

QEMU version: 3.0.0 RC3
Guests: Windows NT 4.0, Windows 95, Windows 3.1

Program: When the user uses the scroll wheel, the mouse's movement becomes erratic. 

This is noticed immediately when the scroll wheel is used. Sometimes the problem can be fixed by moving the scroll wheel some more.

My theory is this problem is because of the lack of support for the Microsoft Intellimouse in these guest operating systems.

The QEMU project is currently considering to move its bug tracking to
another system. For this we need to know which bugs are still valid
and which could be closed already. Thus we are setting older bugs to
"Incomplete" now.

If you still think this bug report here is valid, then please switch
the state back to "New" within the next 60 days, otherwise this report
will be marked as "Expired". Or please mark it as "Fix Released" if
the problem has been solved with a newer version of QEMU already.

Thank you and sorry for the inconvenience.


After doing tests with Windows 95, 3,1, NT 4.0, and 2000 I can say this bug appears to be fixed.