Bug 363217 - VNC connection to KDE5 is not possible
Summary: VNC connection to KDE5 is not possible
Status: RESOLVED DUPLICATE of bug 356782
Alias: None
Product: krfb
Classification: Applications
Component: general (show other bugs)
Version: unspecified
Platform: Ubuntu Linux
: NOR grave
Target Milestone: ---
Assignee: George Goldberg
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-05-18 12:37 UTC by Tom Kijas
Modified: 2017-03-23 23:26 UTC (History)
7 users (show)

See Also:
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Description Tom Kijas 2016-05-18 12:37:16 UTC
VNC connection to KDE5 is not possible

Reproducible: Always

Steps to Reproduce:
1. Start KRFB
2. Connect from other PC (VNC)
3. Look at KDE5 boot picture...nothing else.

Actual Results:  
It shows only KDE5 boot picture, although KDE5 runs e.g. for 6 days.

Expected Results:  
To work properly.

Ubuntu 16.04, 64bit, intel video card
Comment 1 manuel fernández 2016-05-20 02:06:14 UTC
I have the same problem:
kubuntu 16.04 plasma 5.5.5 kenrel 4.4.0-23-generic qt 5.5.1
but I see a frozen desktop image several hours ago
Comment 2 H.H. 2016-06-02 14:58:15 UTC
I also have the problem. I can move the mouse, but nothing else works.

For example the remote person sees my mouse moving, but if I for example click the clock at the right bottom, on my screen nothing happens. On the remote screen the calendar pops up.

I tried then another vnc server on the remote side, then it worked.
Comment 3 manuel fernández 2016-06-02 23:18:33 UTC
I also confirm that if I run the server with x11vnc the remote session works all right
Comment 4 Bron Mach 2016-06-21 22:27:29 UTC
With Kubuntu 15.04 and 15.10 it was possible for a remote client to attach to an existing desktop session using Krfb's "Unattended Access" and xrdp.

With the update to Kubuntu 16.04, there are no screen updates on the client after login when using Krfb. The client only sees a static "snapshot" of the desktop from ~3 hours ago.

krfb 4:15.12.3-0ubuntu1
plasma-desktop 4:5.6.4-0ubuntu1~ubuntu16.04~ppa3

Is there an easy way to gather Krfb logs?
Comment 5 Raf 2017-02-03 20:01:07 UTC
This is a duplicate of Bug 218557 and Bug 356782

There is workaround posted by Alexey: https://bugs.kde.org/show_bug.cgi?id=356782#c6
With this workaround krfb should work correctly and you can connect to VNC even with active desktop effects.

Edit  ~/.config/krfbrc

... and add the following lines:

[FrameBuffer]
preferredFrameBufferPlugin=qt
Comment 6 Albert Astals Cid 2017-03-23 23:26:13 UTC

*** This bug has been marked as a duplicate of bug 356782 ***