[Spice-devel] Vdagent not working on a Debian guest

[Uri Lublin]

On Thu, Oct 20, 2022 at 11:52 PM Carlos González <piteccelaya at gmail.com>
wrote:

> So I did more tests.
>
> First, AntiX Linux by default doesn't use "desktop environments" but
> "window managers", being the default IceWM. Also, it doesn't use SystemD at
> all; SysV instead. Regarding Xorg or Wayland, it's Xorg.
>
> > I did some tests and with both Windows and Linux it appears that the
> > agent is needed.
>
> Well, of course it's needed! That's per basic instructions...
>
> Since there's no SystemD here, neither journalctl command. So tried
> running both spice-vdagentd and spice-vdagent with debugging:
> sudo /usr/sbin/spice-vdagentd -x -d -d
> spice-vdagent -f /path/to/folder -x -d -d
>
> When resizing the remote-viewer window, no logs whatsoever, and of course
> neither resolution update. Also, using the -f option served of nothing;
> exact same error mentioned before...
> Neither anything at all related in /var/log/Xorg.0.log
> *Only* clipboard sharing seems to work
>

Try the workaround mentioned on the bug, run on the guest (after resizing
remote-viewer's window):
    xrandr | grep Virtual                  # look for the connected one
    xrandr --output Virtual-0 --auto # may be Virtual-1 instead of Virtual-0

Uri.


> By chance, do you think you could give the live ISO a try? It's a live
> system, and the "Base" version is a CD size, not even a DVD...
>
> Thanks again for your attention.
>
> El mié, 19 oct 2022 a las 15:00, Uri Lublin (<uril at redhat.com>) escribió:
>
>> Hi,
>>
>> On Tue, Oct 18, 2022 at 8:40 PM Frediano Ziglio <freddy77 at gmail.com>
>> wrote:
>>
>>> Il giorno mar 18 ott 2022 alle ore 01:04 Carlos González
>>> <piteccelaya at gmail.com> ha scritto:
>>> >
>>> > Were you able to find something by chance? Thanks.
>>> >
>>>
>>> Hi Carlos,
>>>    my main curiosity was about the need of the agent for resize.
>>> I did some tests and with both Windows and Linux it appears that the
>>> agent is needed.
>>> At this point I would try looking at the agent logs.
>>> Is your system using Xorg or Wayland ?
>>>
>>> Regards,
>>>    Frediano
>>>
>>>
>> I agree with Frediano that (with a recent QXL device) the arbitrary
>> resolution update is done via QXL.
>> Note that it does not work for all Desktop Environments, and I apparently
>> it doesn't work for AntiX Linux (default DE).
>> If you can, try to run with GNOME/X11 and see if that works.
>>
>> Related bug: https://bugzilla.redhat.com/show_bug.cgi?id=1290586
>>
>> Regards,
>>     Uri.
>>
>>
>> > El sáb, 15 oct 2022 a las 9:22, Frediano Ziglio (<freddy77 at gmail.com>)
>>> escribió:
>>> >>
>>> >> Il giorno ven 14 ott 2022 alle ore 16:11 Carlos González
>>> >> <piteccelaya at gmail.com> ha scritto:
>>> >> >
>>> >> > As soon as spice-vdagent package is installed, so is the
>>> spice-vdagentd daemon and it also starts running. Yet I always need to
>>> manually run spice-vdagent command...
>>> >> >
>>> >>
>>> >> Maybe you would need to logout and login again from the graphic
>>> >> session. Or manually start it, not sure.
>>> >>
>>> >> > How do I specify an output directory for the agent to file transfer?
>>> >> >
>>> >>
>>> >> See "spice-vdagent --help", specifically -f and -o options.
>>> >>
>>> >> > I don't think it's remote-viewer's fault, because I also tested
>>> with a Windows guest. With all SPICE stuff properly installed, everything
>>> works out of the box: clipboard, resizing, file transfer from host to
>>> guest. With "properly installed" I mean: installed SPICE drivers manually
>>> from virtio-win ISO by loading them since the Windows installation
>>> beforehand, then once booted into Windows downloaded the vdagent ZIP from
>>> spice-space website and manually installed the service according to
>>> instructions.
>>> >> >
>>> >>
>>> >> I'll check, maybe is not handled by driver but agent
>>> >>
>>> >> > As additional detail, in QEMU I use the option "-display
>>> spice-app", which automatically starts remote-viewer; though curiously it
>>> doesn't seem to create a virt-viewer directory inside ~/.config unlike when
>>> running remote-viewer manually...
>>> >> >
>>> >> > Thanks again.
>>> >> >
>>> >> > El vie, 14 oct 2022 a las 12:41, Frediano Ziglio (<
>>> freddy77 at gmail.com>) escribió:
>>> >> >>
>>> >> >> Il giorno gio 13 ott 2022 alle ore 16:58 Carlos González
>>> >> >> <piteccelaya at gmail.com> ha scritto:
>>> >> >> >
>>> >> >> > Hello.
>>> >> >> >
>>> >> >> > I'm trying a virtual machine with a live CD distribution called
>>> AntiX Linux, which is directly based on Debian.
>>> >> >> >
>>> >> >> > I'm using direct QEMU commands.
>>> >> >> > In the VM configuration I have this for SPICE configuration:
>>> >> >> > "-vga qxl -device virtio-serial-pci -spice
>>> unix=on,addr=path/to/vm_spice.socket,disable-ticketing=on -chardev
>>> spicevmc,id=spicechannel0,name=vdagent -device
>>> virtserialport,chardev=spicechannel0,name=com.redhat.spice.0 \"
>>> >> >> > Then I boot the live ISO, double check that QXL driver is
>>> installed -which normally always is-, and install spice-vdagent package
>>> (version 20 here). I'm using remote-viewer (virt-viewer) to visualize the
>>> VM.
>>> >> >> >
>>> >> >> > Up to this point, clipboard sharing with host still doesn't
>>> work, and trying to drag a file from host to guest results in an error "The
>>> agent is not connected".
>>> >> >> >
>>> >> >>
>>> >> >> This error is normal if the agent is stopped.
>>> >> >>
>>> >> >> > So I manually run "spice-vdagent" command, and clipboard sharing
>>> now works, but trying to drag file from host to guest gives "File transfer
>>> is disabled". Also, automatic resolution change with window resizing
>>> doesn't work either.
>>> >> >> >
>>> >> >>
>>> >> >> The fact that in this way the clipboard is running indicates that
>>> the
>>> >> >> agent is now working. You need to specify an output directory to
>>> the
>>> >> >> agent in order to get file transfer working.
>>> >> >> About the resolution change that's weird, I think that feature on
>>> >> >> Linux does not even require the agent running. Is it possible that
>>> the
>>> >> >> client (remove-viewer) is not set up to send resize to the guest
>>> >> >> automatically, there are some options on the menu.
>>> >> >>
>>> >> >> > Certainly, this live distro doesn't come with any spice-related
>>> packages installed by default, except for the QXL package.
>>> >> >> >
>>> >> >> > Am I missing something here? Could someone help please?
>>> >> >> > Thanks beforehand.
>>> >> >>
>>> >> >> Frediano
>>>
>>>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/spice-devel/attachments/20221024/f0cdb504/attachment.htm>