[Bug 1884017] Re: Intermittently erratic mouse under Windows 95

[David Glover]

Weirdly, this problem doesn't occur when running qemu on macOS
(10.15.5). It only happens on my PC running openSUSE Tumbleweed.

However, even on that PC, it only affects Windows 95, and not Windows
98, or other operating systems.

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https://bugs.launchpad.net/bugs/1884017

Title:
  Intermittently erratic mouse under Windows 95

Status in QEMU:
  New

Bug description:
  The mouse works fine maybe 75-80% of the time, but intermittently
  (every 20-30 seconds or so), moving the mouse will cause the pointer
  to fly around the screen at high speed, usually colliding with the
  edges, and much more problematically, click all the mouse buttons at
  random, even if you are not clicking. This causes random objects on
  the screen to be clicked and dragged around, rendering the system
  generally unusable.

  I don't know if this is related to #1785485 - it happens even if you
  never use the scroll wheel.

  qemu version: 5.0.0 (openSUSE Tumbleweed)

  Launch command line: qemu-system-i386 -hda win95.qcow2 -cpu pentium2
  -m 16 -vga cirrus -soundhw sb16 -nic user,model=pcnet -rtc
  base=localtime

  OS version: Windows 95 4.00.950 C

  I have made the disk image available here:
  https://home.gloveraoki.me/share/win95.qcow2.lz

  Setup notes: In order to make Windows 95 detect the system devices
  correctly, after first install you must change the driver for "Plug
  and Play BIOS" to "PCI bus". I have already done this in the above
  image.

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