Disregard my previous remark about a black screen. That was user
error. I can now reproduce exactly the issue you report. In fact,
specifying any resolution that is in the default list of resolutions
reported by X RandR causes the failure. If I remove 1440x900 and
1920x1080 from that list, then those resolutions can then be selected
with -geometry/$geometry. Same goes for the TigerVNC Server. I am
still investigating.
On 1/3/25 12:36 PM, DRC wrote:
Reproduced. In my case, specifying -geometry (or $geometry in
turbovncserver.conf) never works. It fails with the "Oh No! Something
has gone wrong!" screen if I specify 1440x900, but it fails with a
black screen otherwise. The same happens with TigerVNC, and
TigerVNC's startup mechanism is so different from TurboVNC's that that
strongly suggests a GNOME bug. Other window managers, such as MATE or
Xfce, work fine. As a workaround, you can start the TurboVNC Server
with no arguments and then pass '-desktopsize 1440x900' to the
TurboVNC Viewer when connecting (or enter 1440x900 into the "Remote
desktop size" field of the Connection tab in the TurboVNC Viewer
Options dialog.)
I am investigating whether a more automatic workaround might be possible.
On 12/23/24 10:31 AM, Andrea Farina wrote:
Dear DRC,
My client is on a MacBookPro M1. I’ve installed TurboVNC viewer,
RealVNC and the embedded screen Sharing.
All of them present the same error when I try to connect using the
-geometry 1440x900 option. I tried another things: using the
-geometry with many resolutions; here is the report:
1200x900 working!
1300x900 working!
1400x900 working!
1440x900 not working (waht I’ve always used before)
1920x1080 not working
1200x1080 working!
1728x1117 working! (my halved 16inches resolution monitor)
So I honestly think that the problem is in some strange combination
of resolutions. Hope this can help!
Best regards!
Andrea
On 23 Dec 2024, at 15:55, 'DRC' via TurboVNC User Discussion/Support
<turbovnc-users@googlegroups.com> wrote:
The TurboVNC Server isn’t invoking xinitrc, so my previous suspicion
was incorrect. At this point, I will have to try reproducing the
issue. What VNC viewer are you using, and what client O/S? I ask
because the session log indicates that the TurboVNC Server is
enabling the outdated and slow ZRLE encoding, which would never
happen if you were connecting with the TurboVNC Viewer.
On Dec 23, 2024, at 2:39 AM, Andrea Farina
<andreafarin...@gmail.com> wrote:
Dear DRC,
Here attached the two log files obtained with and without -geometry
option. They look pretty the same except a part with warnings
related to XKEYBOARD keymap compiler (xkbcomp) that is present two
times in the working log and one time in the not_working log.
Hope this can help finding the issue, which is probably related
only to my installation…
Best regards
Andrea
On 22 Dec 2024, at 21:28, 'DRC' via TurboVNC User
Discussion/Support <turbovnc-users@googlegroups.com> wrote:
Can you check the TurboVNC session log under ~/.vnc on the server.
It occurs to me that the TurboVNC Server may be trying to execute
xinitrc because the GNOME session desktop file isn’t available
(due to a missing package.)
On Dec 22, 2024, at 12:01 PM, Andrea Farina
<andreafarin...@gmail.com> wrote:
Dear DRC,
here are the exact steps.
In September I’ve upgraded from 20 to 22. I had TurboVNC 2.x and
after the upgrade I’ve also update to the last version that was
3.03. No problem and all started to work smoothly.
On Friday I had to further upgrade because I’ve received a
vulnerability report from my ICT admin because of the OpenSSH
version 8.9. So I had to update to 9.3 that is supported by
UBUNTU 24. After the upgrade I had the TurboVNC version 3.03
already installed and I’ve received the same error, this is
because I update to 3.1. So, at my knowledge, at least TurboVNC
3.03 has the issue.
Actually, I cannot try the older versions because the machine is
shared.
What I guess is that it might be a problem due to the fact that I
don’t have a fresh installation but a 2 times updated version of
Ubuntu…
Thanks a lot
Andrea Farina
image.png
Il giorno 22 dic 2024, alle ore 17:35, 'DRC' via TurboVNC User
Discussion/Support <turbovnc-users@googlegroups.com> ha scritto:
I mentioned TVNC_USERDBUS in case you were using GNOME Classic,
but that environment variable should not be necessary with plain
(non-classic) GNOME. I will try to reproduce the issue, but I
may not be able to. (This sort of issue tends to be
system-specific and may not even be related to TurboVNC.) The
best thing you can do to debug it is to try prior versions of
TurboVNC. Try 3.1, then try 3.0.3, then 3.0, then 2.2.7. Stop as
soon as you find a version that behaves either better or worse
than the current version— that is, a version that either doesn’t
exhibit the bug or exhibits a worse bug. (The version of GNOME
in Ubuntu 24.04 may not work with TurboVNC 2.2.x, for instance.)
What I’m looking for is some way to narrow down a specific
version of TurboVNC that might have introduced the issue, which
may give me a clue as to the feature that introduced it, which
may give me a clue as to how to reproduce and fix it.
On Dec 22, 2024, at 3:27 AM, Andrea Farina
<andreafarin...@gmail.com> wrote:
Dear DRC, sorry I'm not so expert in those things!
On the physical machine each user has the standard desktop is
GNOME. If I successfully connect without the -geometry options,
the result of the command
wmctrl - m is GNOME Shell, so I guess GNOME is what I try to
use with TurboVNC.
I use the standard xstartup.turbovnc file in the folder
/opt/TurboVNC/bin that is the same you can download from Github
https://github.com/TurboVNC/turbovnc/blob/main/unix/xstartup.turbovnc.
I've tried to put in the second line TVNC_USERDBUS=1 and
connect with -geometry but without success.
If you can explain me more in details which commands I have to
use I can debug the problem.
Thanks a lot!
Andrea
On Sunday, 22 December 2024 at 01:23:16 UTC+1 DRC wrote:
That shouldn’t happen. Please answer my question regarding
which window manager you are using.
On Dec 21, 2024, at 5:59 PM, Andrea Farina
<andreaf...@gmail.com> wrote:
Dear DRC,
thank you very much. I've tried to set the variable using
the command
*export TVNC_USERDBUS=1* before creating the display with
*/opt/TurboVNC/bin/vncserver :2 -geometry 1440x900*
but the problem still remains.
I could solve it discarding the option -geometry 1440x900.
Don't know why, but in the last versions I could set
geometry without problems.
Thanks again
Regards
Andrea
On Friday, 20 December 2024 at 22:28:00 UTC+1 DRC wrote:
Which window manager are you attempting to use? I
have tested GNOME,
MATE, and Xfce under Ubuntu 24.04 with no issues.
There is a known
issue with the GNOME Classic window manager on Ubuntu
24.04, however.
In order to use GNOME Classic/Ubuntu 24.04 with
TurboVNC, you have to
set TVNC_USERDBUS=1 in the environment, which limits
you to one
simultaneous session.
DRC
On 12/20/24 1:39 PM, Andrea Farina wrote:
> Dear users,
> I'm been using TurboVNC installed on LINUX since
2020 without
> problems. Now I've upgraded to UBUNU 24 and I've
installed the last
> version 3.1.3.
> Wgen i start the server on the limux machine all
goes smoothly but,
> when I try to connect from my MacBook both using
VNCConnect and the
> embedded Screen sharing, after inserting the
password I get the error:
> "Oh No! Something has gone wrong!" and no way to
connect.
>
> If, instead of TurboVNC I use RealVNC or the
standard vncserver the
> connection is accepted but with a very poor
graphics. I would like to
> continue using TurboVNC because, I can manage
multiple vnc displays
> for many users with an init script.
>
> Do you know how to manage this problem? Are there
some security limits
> on the connection?
> Thanks a lot!
> Andrea
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