[vfio-users] Make guest gpu visible to xrandr

[Fabian Lx]

Thanks for your ideas!
Although I am not sure if I will be able to implement them into my 
current setup I will hopefully be able to get it to work.

Fabian


On 16/11/16 09:10, Andrei Grigore wrote:
> I find this solution better:
>
> - On Host: bind a xandr script to a Key combination (ex. CTRL+SHIFT+1)
> - On Guest: install "nircmd" and set it up in such a way to to turn
> the monitor off with a Key combination (ex. CTRL+SHIFT+2). (you can
> find tutorials on google how to do it).
>
> On Wed, Nov 16, 2016 at 2:58 AM, Janusz <januszmk6 at gmail.com> wrote:
>> You can't use xrandr as your second gpu is used by vfio and VM.
>> You could probably be able to control monitor by hdmi (CEC) - check for
>> example http://libcec.pulse-eight.com/
>>
>> On 11/16/2016 12:50 AM, Fabian Lx wrote:
>>> Hi,
>>>
>>> I have successfully set up my Windows 10 virtual machine using Alex
>>> Williamson's guide.
>>> Everything is working fine, however, I would like to improve my
>>> experience by automatically switching the monitor input after booting
>>> up the vm.
>>>
>>> My current monitor does not support an auto-detect mode, which would
>>> switch the active input to my guest vm after deactivating the current
>>> input via "$ xrandr --output HDMI2 --off".
>>> Unfortunately "$ xrandr --listproviders" and "$ xrandr"  only list the
>>> Intel GPU (see "My PC specifications" below) so I have not been able
>>> to set it up myself.
>>>
>>> I have seen that this issue has already been discussed in the
>>> archlinux forums, although I am not sure whether this was related to
>>> vfio.
>>> No solution was mentioned in the thread at that time.
>>>
>>> https://bbs.archlinux.org/viewtopic.php?id=175743
>>>
>>>
>>> How can I make the second/guest GPU visible to xrandr or use it in
>>> another way to switch the monitor input for my vm?
>>>
>>>
>>>
>>>
>>>
>>> My PC specifications:
>>>
>>>
>>> Monitor:    LG 24MP68VQ
>>>
>>> Host OS:     Archlinux 4.8.7-1-ARCH
>>> Host GPU:     Intel HD Graphics 530
>>>
>>> Guest OS:    Windows 10 Home 64-bit
>>> Guest GPU:    AMD Sapphire RX 480 (No AMD reset issues with this card
>>> anymore)
>>> Guest GPU driver:    Radeon Software Crimson Edition 16.11.3
>>>
>>>
>>> $ lspci | grep VGA
>>>
>>> 00:02.0 VGA compatible controller: Intel Corporation HD Graphics 530
>>> (rev 06)
>>> 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc.
>>> [AMD/ATI] Ellesmere [Radeon RX 480] (rev c7)
>>>
>>>
>>> $ xrandr --listproviders
>>>
>>> Providers: number : 1
>>> Provider 0: id: 0x48 cap: 0xb, Source Output, Sink Output, Sink
>>> Offload crtcs: 4 outputs: 5 associated providers: 0 name:Intel
>>>
>>>
>>> $ xrandr
>>>
>>> Screen 0: minimum 8 x 8, current 1920 x 1080, maximum 32767 x 32767
>>> DP1 disconnected (normal left inverted right x axis y axis)
>>> HDMI1 disconnected (normal left inverted right x axis y axis)
>>> HDMI2 connected primary 1920x1080+0+0 (normal left inverted right x
>>> axis y axis) 480mm x 270mm
>>>     1920x1080     60.00*+
>>>     1680x1050     59.88
>>>     1400x1050     59.95
>>>     1600x900      60.00
>>>     1280x1024     75.02    60.02
>>>     1440x900      59.90
>>>     1280x800      59.91
>>>     1152x864      75.00
>>>     1280x720      60.00
>>>     1024x768      75.03    60.00
>>>     800x600       75.00    60.32
>>>     640x480       75.00    59.94
>>>     720x400       70.08
>>> HDMI3 disconnected (normal left inverted right x axis y axis)
>>> VIRTUAL1 disconnected (normal left inverted right x axis y axis)
>>>
>>>
>>>
>>> Best regards
>>> Fabian
>>>
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>>
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