[Spice-devel] Userquestion - remote-viewer connection fails with "Connection type could not be determined by URI"

Fri Nov 18 06:08:26 UTC 2022

Hi Frediano, Hi List,

after I was able to start the virtual machine with the GUI I tried your
command

LANG=C remote-viewer spice://192.168.178.51:5900

and it started right up into the virtual machine.

HOWEVER

even

remote-viewer spice://192.168.178.51:5900

now opens the virtual machine - without problems. (Yeah - i am stunned
myself)

I slept over it then tried again today - thinking it never worked again the
day after...

Result is that I am able to open up the VM just fine....

This is the worst - something works without changing anything so I have no
chance of knowing what the problem is/was in the first place

At a loss for words,

Stefan

Am Do., 17. Nov. 2022 um 10:30 Uhr schrieb Stefan Silberstein <
linuxstony at gmail.com>:

> Some details:
> Operating System: Kubuntu 22.04
> KDE Plasma Version: 5.24.6
> KDE Frameworks Version: 5.92.0
> Qt Version: 5.15.3
> Kernel Version: 5.15.0-53-generic (64-bit)
> Graphics Platform: X11
> Processors: 8 × AMD Ryzen 5 1500X Quad-Core Processor
> Memory: 15.6 GiB of RAM
> Graphics Processor: NVIDIA GeForce GTX 1050 Ti/PCIe/SSE2
>
> Opening a Konsole "bash":
>
> Konsole
> Version 21.12.3
>
>
> Locale:
>
> stony at Aperture-Science:~$ locale LANG=de_DE.UTF-8 LANGUAGE=
> LC_CTYPE="de_DE.UTF-8" LC_NUMERIC="de_DE.UTF-8" LC_TIME="de_DE.UTF-8"
> LC_COLLATE="de_DE.UTF-8" LC_MONETARY="de_DE.UTF-8"
> LC_MESSAGES="de_DE.UTF-8" LC_PAPER="de_DE.UTF-8" LC_NAME="de_DE.UTF-8"
> LC_ADDRESS="de_DE.UTF-8" LC_TELEPHONE="de_DE.UTF-8"
> LC_MEASUREMENT="de_DE.UTF-8" LC_IDENTIFICATION="de_DE.UTF-8" LC_ALL=
>
> I will try to open it today at noon - during my lunch break.
> (ATM I am glad it works because i gotta work from home and this
> windows-machine is the only way to connect to the Server in my company for
> me)
>
> I will get back to you in approximately two hours.
>
> Stefan
>
> Am Do., 17. Nov. 2022 um 10:18 Uhr schrieb Frediano Ziglio <
> freddy77 at gmail.com>:
>
>> Il giorno gio 17 nov 2022 alle ore 09:13 Stefan Silberstein
>> <linuxstony at gmail.com> ha scritto:
>> >
>> > Hi,
>> >
>> > no this is the normal forward-slash with "shift+7" on the german
>> keyboard - googlemail messed it up translating it to something else.
>> > The URL  is normally typed.
>> >
>> > This is really weird and I will try to help you as much as I can to get
>> to the bottom of it.
>> >
>> > Stefan
>> >
>>
>> That's pretty weird. That code has been there for ages. I tried but no
>> problems for me.
>> This operating system and version are you using?
>> Which shell?
>> Maybe it's the locale? Try launching something like "LANG=C
>> remote-viewer spice://192.168.178.51:5900" (LANG environment change)
>>
>> Frediano
>>
>> > Am Do., 17. Nov. 2022 um 10:08 Uhr schrieb Frediano Ziglio <
>> freddy77 at gmail.com>:
>> >>
>> >> Il giorno gio 17 nov 2022 alle ore 07:57 Stefan Silberstein
>> >> <linuxstony at gmail.com> ha scritto:
>> >> >
>> >> > Hello again,
>> >> >
>> >> > so - yesterday I worked from home - as I wrote I was able to connect
>> by specifying the user root with "remote-viewer spice://
>> root at 192.168.178.51:5900"
>> >> >
>> >> > Today I want to connect the exact same way (yesterday i simply
>> closed the remote-viewer window and the server keept on running so the
>> windows-VM was running the whole night) - and I can not connect.
>> >> >
>> >> > Error Message on the console  "** (remote-viewer:6146): CRITICAL **:
>> 07:55:52.853: virt_viewer_util_extract_host: assertion 'uri != NULL' failed"
>> >> > Error Message on the popup says translated: Connectiontype could not
>> be determined by URI.
>> >> >
>> >>
>> >> Hi,
>> >>    That means that the code was not able to parse the URI.
>> >>
>> >> > IP of the server itself is 192.168.178.51
>> >> > IP of the Virtual Machine is 192.168.178.64 and i pingable
>> >> > Port 5900 on the server is open: 5900/tcp open  vnc
>> >> > remote-viewer --spice-debug spice:⁄⁄192.168.178.51:5900 does not
>> produce a more verbose output :(
>> >> >
>> >>
>> >> In this example you are not using ASCII slashes (//), maybe that's the
>> problem.
>> >>
>> >> > Update in the meantime
>> >> > But maybe this is helpful to you:
>> >> >
>> >> > I simply started "remote-viewer --spice-debug"
>> >> > Then i got the GUI (which i wasnt even aware it existed).
>> >> >
>> >> > When I choose the same entry on that list - I AM able to connect.
>> >> >
>> >> > So the error only exists only when I try to connect via command
>> line?! (This is when I am able to connect tomorrow via GUI ;) )
>> >> >
>> >> > Shouldn't this be the same ?
>> >> >
>> >> > I mabe I can help - maybe this is indeed a bug?
>> >> >
>> >> > Stefan
>> >> >
>> >>
>> >> Frediano
>> >>
>> >> > Am Mi., 16. Nov. 2022 um 09:37 Uhr schrieb Victor Toso <
>> victortoso at redhat.com>:
>> >> >>
>> >> >> On Wed, Nov 16, 2022 at 09:27:21AM +0100, Stefan Silberstein wrote:
>> >> >> > I appreciate the time to answer me.
>> >> >> >
>> >> >> > In the meantime (out of desperation because i needed the
>> virtualmachine for
>> >> >> > work) I gave it a go with specifying root as user and not the
>> servers
>> >> >> > username "server".
>> >> >> >
>> >> >> > I was able to connect to the virtual Windows10 installation with
>> >> >> >
>> >> >> > remote-viewer spice://root@192.168.178.51:5900
>> >> >>
>> >> >> Cool
>> >> >>
>> >> >> > But again - then I dont unterstand why it worked as user and
>> >> >> > later on with specifying the user later on (which doesn't work
>> >> >> > right now anymore)
>> >> >> >
>> >> >> > So it is a permissions problem on my side and I successfully
>> >> >> > wasted your time. :/
>> >> >> >
>> >> >> > Sorry about that.
>> >> >>
>> >> >> Don't worry about that. Happy to hear it worked.
>> >> >>
>> >> >> >
>> >> >> > This happens when "users" try to play with the big boys toys :D
>> >> >> >
>> >> >> > Have a nice day you all and thanks for your time.
>> >> >>
>> >> >> You too.
>> >> >> Cheers,
>> >> >>
>> >> >> >
>> >> >> > Stefan
>> >> >> >
>> >> >> > Am Mi., 16. Nov. 2022 um 09:21 Uhr schrieb Victor Toso <
>> >> >> > victortoso at redhat.com>:
>> >> >> >
>> >> >> > > Hi Stefan,
>> >> >> > >
>> >> >> > > On Tue, Nov 15, 2022 at 09:53:05PM +0100, Stefan Silberstein
>> wrote:
>> >> >> > > > Hello developers,
>> >> >> > > >
>> >> >> > > > I can imagine that this will be an annoying question for you -
>> >> >> > > > so I apologize in advance.
>> >> >> > > >
>> >> >> > > > I am a user - with a longer history with linux BUT i am
>> >> >> > > > completely new to virtualization.
>> >> >> > > > Due to the fact that I got a server donated to me I wanted to
>> >> >> > > > give it a go and it worked like a charm.
>> >> >> > > >
>> >> >> > > > Installed virt-manager, installed Windows10  connected with
>> >> >> > > > virt-manager - absolutely no problem.
>> >> >> > > >
>> >> >> > > > Due to the fact that I need dual monitors I learned that I
>> >> >> > > > could add another display and connect with spice - and it
>> >> >> > > > worked immediately.
>> >> >> > > >
>> >> >> > > > BUT - without me changing anything (consciously) I wasn't able
>> >> >> > > > to connect to the virtual machine the next week.
>> >> >> > > >
>> >> >> > > > It refuses with "Verbindungstyp konnte nicht von URI
>> ermittelt werden"
>> >> >> > > > (Connection type could not be determined by URI)
>> >> >> > > >
>> >> >> > > > Then i tried to connect with sudo and specifying the user in
>> >> >> > > > the command line and it once again connected:
>> >> >> > > >
>> >> >> > > > sudo remote-viewer  spice:⁄⁄server at 192.168.178.51:5900
>> >> >> > >
>> >> >> > > Perhaps the URL is the problem. If the IP is 192.168.178.51 and
>> >> >> > > the port for the VM is 5900, then try
>> >> >> > >
>> >> >> > >     remote-viewer spice://192.168.178.51:5900
>> >> >> > >
>> >> >> > > If server is a dns that can be resolved, should be fine to use
>> it
>> >> >> > > instead of ip address
>> >> >> > >
>> >> >> > >     remote-viewer spice://server:5900
>> >> >> > >
>> >> >> > >
>> >> >> > > > And now - again without changing anything - it doesn't connect
>> >> >> > > > with that command as well.
>> >> >> > > >
>> >> >> > > > I have sadly NO clue whatsoever where to even search for a
>> >> >> > > > solution - the internet didn't help me here...
>> >> >> > > >
>> >> >> > > > Do you have any hint at all what I might do wrong here?
>> >> >> > > >
>> >> >> > > > The machine is available - the port is open and visible
>> >> >> > > > PORT     STATE SERVICE
>> >> >> > > > 22/tcp   open  ssh
>> >> >> > > > 80/tcp   open  http
>> >> >> > > > 3389/tcp open  ms-wbt-server
>> >> >> > > > 5900/tcp open  vnc
>> >> >> > > >
>> >> >> > > > ufw on the server is shut down.
>> >> >> > > >
>> >> >> > > > ANY help would be greatly appreciated.
>> >> >> > >
>> >> >> > > You can get more verbose information of issues with
>> --spice-debug
>> >> >> > > command line option too.
>> >> >> > >
>> >> >> > > Cheers,
>> >> >> > > Victor
>> >> >> > >
>>
>
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