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Description of problem:
boot a guest with mouse keyboard and tablet devices, and update one driver and then click scan for hardware changes in device manager, the other two devices's drivers were installed automatedly.
Version-Release number of selected component (if applicable):
qemu-kvm-rhev-2.8.0-4.el7.x86_64
kernel-3.10.0-563.el7.x86_64
seabios-1.10.1-2.el7.x86_64
virtio-win-prewhql-132
How reproducible:
100%
Steps to Reproduce:
1.boot up win7-32 guest with mouse keyboard and tablet device.
/usr/libexec/qemu-kvm -name win7-32 -nodefaults -vga std -m 3G -smp 4 -drive file=131RNGWIN732MRT,if=none,id=drive-ide0-0-0,format=raw,cache=none -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1 -drive file=/home/en_windows_7_ultimate_with_sp1_x86_dvd_u_677460.iso,if=none,readonly=on,media=cdrom,format=raw,id=cdrom1 -device ide-drive,drive=cdrom1,bus=ide.0,unit=1,id=ide-cd1 -drive file=/home/virtio-win-prewhql-132.iso,if=none,readonly=on,media=cdrom,format=raw,id=cdrom2 -device ide-drive,drive=cdrom2,bus=ide.1,unit=0,id=ide-cd2 -vnc :0 -rtc base=localtime,clock=host,driftfix=slew -boot order=cd,menu=on -enable-kvm -monitor stdio -qmp tcp:0:1234,server,nowait -netdev tap,script=/etc/qemu-ifup,downscript=no,id=hostnet0 -device e1000,netdev=hostnet0,id=net0,mac=00:52:0a:5c:f1:1c -device virtio-keyboard-pci,id=kbd0,serial=virtio-keyboard -device virtio-mouse-pci,id=mouse0,serial=virtio-mouse -device virtio-tablet-pci,id=tablet0,serial=virtio-tablet
2.install input driver for "PCIInput Device" in guest's device manager
3.click "Scan for hardware changes" in dev manager
Actual results:
the PCIKeyboard Controller and PCIMouse Controller's dirvers are installed automatedly.
Expected results:
The other two device's driver can not installed automatedly.
Additional info:
1.2008-r2 hit the same issue.
2.After there dirvers are all installed and i only uninstall one driver, then do scan operation, the driver can not be installed automatedly
(In reply to xiagao from comment #0)
> 2.install input driver for "PCIInput Device" in guest's device manager
>
> 3.click "Scan for hardware changes" in dev manager
>
> Actual results:
> the PCIKeyboard Controller and PCIMouse Controller's dirvers are installed
> automatedly.
I believe that this is expected. All three devices have the same device/vendor ID and are driven by the same driver. You can try this with some other device - add two instances of, say, virtio-blk-pci and install the driver for only one of them.
(In reply to xiagao from comment #0)
>
> Actual results:
> the PCIKeyboard Controller and PCIMouse Controller's dirvers are installed
> automatedly.
>
>
> Expected results:
> The other two device's driver can not installed automatedly.
>
> Additional info:
> 1.2008-r2 hit the same issue.
> 2.After there dirvers are all installed and i only uninstall one driver,
> then do scan operation, the driver can not be installed automatedly
Hi Ladi,
I have a question,
After there dirvers are all installed and i only uninstall one driver,
then do scan operation, why can't the driver be installed automatedly?
thanks,
xiagao
Hi Ladi,
I did't reproduce it in win8-32 guest.
Detailed steps:
1.boot up win8-32 guest with keyboard,mouse and tablety devices.
2.install input driver for "PCIInput Device" in guest's device manager
3.click "Scan for hardware changes" in dev manager
actual result:
the PCIKeyboard Controller and PCIMouse Controller's dirvers are not installed automatedly.
thanks
xiagao
Hi xiagao,
(In reply to xiagao from comment #2)
> Hi Ladi,
>
> I have a question,
> After there dirvers are all installed and i only uninstall one driver,
> then do scan operation, why can't the driver be installed automatedly?
This seems to work for me on Win7-32. Maybe there are differences between Windows versions in how exactly they handle drivers in the driver store. But there's not much we can do about it and not a super important scenario so I wouldn't spend too much time on it.
Thanks!
Ladi