Re: VNC Viewer on Windows: Unable to access VMs GUI

From: Odhiambo Washington <odhiambo_at_gmail.com>
Date: Tue, 12 Mar 2024 11:48:56 UTC
Actually, I am trying to figure out why they do not work after upgrade from
FreeBSD 13 to 14. They used to work before.
History:
1. My FreeBSD host lives in a Data Centre several kilometers from me. I
only access it via SSH.
2. My FreeBSD host does not have a keyboard, mouse, or screen attached to
it.
3. I use VNC Viewer to connect to the VMs like HOST_IP:PORT


On Tue, Mar 12, 2024 at 2:36 PM Mario Marietto <marietto2008@gmail.com>
wrote:

> Hello my friend Odhiambo,
>
> you can try to pass your keyboard and mouse to a specific USB to pci
> adapter,using an USB splitter to attach both the input devices. Actually
> I'm using the one integrated on my nvidia gpu,RTX 2080 ti,that's :
>
> 02:00.0 VGA compatible controller: NVIDIA Corporation TU102 [GeForce RTX
> 2080 Ti]
> 02:00.1 Audio device: NVIDIA Corporation TU102 High Definition Audio
> Controller
> *02:00.2 USB controller: NVIDIA Corporation TU102 USB 3.1 Host Controller*
> 02:00.3 Serial bus controller: NVIDIA Corporation TU102 USB Type-C UCSI
> Controller
>
> For sure you will add the PCI address of the board between your bhyve
> parameters,for example in my case :
>
> -s 8:2,passthru,2/0/2 \
>
> A single hardware solution would be a pcie riser which splits the pcie
> port.
>
>
> I've asked for a good USB controller some time ago :
>
>
>
> https://forums.freebsd.org/threads/im-looking-for-a-good-usb-controller-3-0-4-ports-self-powered-compatible-with-freebsd.83323/
>
>
> If it’s only mouse and keyboard you could use bhyves virtio-input
> emulation.
>
>
> Corvin included virtio-input support in his github.
>
>
> He committed virtio-input to 13.2 and 14.0 upstream.
>
>
> From “man bhyve”
>
>
>
> https://www.freebsd.org/cgi/man.cgi?query=bhyve&apropos=0&sektion=8&manpath=FreeBSD+14.0-CURRENT&arch=default&format=html
> ):
>
>
>             Virtio      input device backends:
>
>
>
>             */dev/input/eventX*
>
>                        Send input    events of */dev/input/eventX* to
> guest
>
>                        by      VirtIO Input Interface.
>
> On Tue, Mar 12, 2024 at 11:39 AM Odhiambo Washington <odhiambo@gmail.com>
> wrote:
>
>>
>> Even with this, my mouse pointer doesn't work:
>>
>> # Linux Guest
>> bhyve -S -c sockets=2,cores=2,threads=2 -m 4G -w -H -A \
>> -s 0,hostbridge \
>> -s 3,ahci-cd,/usr/local/bhyve-vms/.iso/debian-12.5.0-amd64-DVD-1.iso \
>> -s 4,virtio-blk,/usr/local/bhyve-vms/Debian/debian.img \
>> -s 5,virtio-net,tap4 \
>> -s 8,hda,play=/dev/dsp,rec=/dev/dsp \
>> -s 29,fbuf,tcp=0.0.0.0:5905,w=1024,h=768 \
>> -s 30,xhci,tablet \
>> -s 31,lpc -l com1,stdio \
>> -l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd \
>> debian
>>
>>
>>
>> On Wed, Feb 14, 2024 at 3:47 PM Mario Marietto <marietto2008@gmail.com
>> <marietto2008@gmailcom>> wrote:
>>
>>> -s 3,fbuf,tcp=0.0.0.0:59 <http://0.0.0.0:5915>*15*,w=1600,h=950 \
>>> -s 10,virtio-net,tap*15* \
>>> *vm15* < /dev/null & sleep 2 && vncviewer *0:15*
>>>
>>> On Wed, Feb 14, 2024 at 1:19 PM Odhiambo Washington <odhiambo@gmail.com>
>>> wrote:
>>>
>>>> Hellos,
>>>>
>>>> When I was still on FreeBSD 13.2-RELEASE I was able to access some
>>>> Linux VMs GUI using VNC Viewer on my Windows PC.
>>>> After I upgraded to 14-RELEASE, this changed: I can connect to the VMs,
>>>> but the GUI desktop is frozen. The mouse cursor isn't moving at all and the
>>>> Desktop doesn't load like before.
>>>> I start all my VMs the same way:
>>>>
>>>> bhyve -c N -m NG -w -H \
>>>> -s 0,hostbridge \
>>>> -s 4,virtio-blk,/usr/local/bhyve-vms/DISTRONAME/distroname.img \
>>>> -s 5,virtio-net,tapN \
>>>> -s 8,hda,play=/dev/dsp,rec=/dev/dsp \
>>>> -s 29,fbuf,tcp=0.0.0.0:59XX,w=1680,h=1050 \
>>>> -s 30,xhci,tablet \
>>>> -s 31,lpc -l com1,stdio \
>>>> -l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd \
>>>> distroname
>>>>
>>>> I would then connect to a.b.c.d:59xx using VNC Viewer and I'd get the
>>>> Linux/Windows Desktop.
>>>> Not anymore!
>>>>
>>>> Is there something I need to do to fix the issue?
>>>>
>>>>
>>>> --
>>>> Best regards,
>>>> Odhiambo WASHINGTON,
>>>> Nairobi,KE
>>>> +254 7 3200 0004/+254 7 2274 3223
>>>>  In an Internet failure case, the #1 suspect is a constant: DNS.
>>>> "Oh, the cruft.", egrep -v '^$|^.*#' ¯\_(ツ)_/¯ :-)
>>>> [How to ask smart questions:
>>>> http://www.catb.org/~esr/faqs/smart-questions.html]
>>>>
>>>
>>>
>>> --
>>> Mario.
>>>
>>
>>
>> --
>> Best regards,
>> Odhiambo WASHINGTON,
>> Nairobi,KE
>> +254 7 3200 0004/+254 7 2274 3223
>>  In an Internet failure case, the #1 suspect is a constant: DNS.
>> "Oh, the cruft.", egrep -v '^$|^.*#' ¯\_(ツ)_/¯ :-)
>> [How to ask smart questions:
>> http://www.catb.org/~esr/faqs/smart-questions.html]
>>
>
>
> --
> Mario.
>


-- 
Best regards,
Odhiambo WASHINGTON,
Nairobi,KE
+254 7 3200 0004/+254 7 2274 3223
 In an Internet failure case, the #1 suspect is a constant: DNS.
"Oh, the cruft.", egrep -v '^$|^.*#' ¯\_(ツ)_/¯ :-)
[How to ask smart questions:
http://www.catb.org/~esr/faqs/smart-questions.html]