Hmm, you likely need the whole patch series, and not only a single patch...
If you've got a git checkout and b4 installed, you could try: b4 am a898b0d5-7086-9699-ae8b-9524ad319...@t-online.de git am ./v2_20210507_vr_qemu_ps_2_controller_related_fixes.mbx Otherwise it's maybe easier to wait until the patches have been merged... ** Changed in: qemu Status: Incomplete => New -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1899539 Title: keyboard errors in DOS, found links to similar errors for reference Status in QEMU: New Bug description: OS: slackware 14.2, updated. qemu version: 4.1.0 (from slackbuild script) command line: qemu-system-i386 -hda msdos.vhd Description of problem: MSDOS 6.22 disk image running gwbasic 3.23. Cursor keys and sometimes letter keys are repeated. Cursor keys seemingly always, letter keys seem to happen when typing too fast. Numpad arrows are not affected. Also insert key doesnt seem to work at all. Have found one similar current bug, Bug #1574246 Drunken keyboard in go32v2 programs https://bugs.launchpad.net/qemu/+bug/1574246?comments=all and a much older vbox bug report that seems very similar, https://www.virtualbox.org/ticket/58 , and for some reason mentions a qemu patch. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1899539/+subscriptions