Questions tagged [vnc]
Virtual Network Computing (VNC) is a graphical desktop sharing system that can be used to control a computer remotely.
226
questions with no upvoted or accepted answers
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1
answer
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No VNC extension on display on VNC desktop
I have started vncserver or remote instance with the vncserver command, and now am able to connect to it with VNC client.
Unfortunately, I can't start vncconfig due to error
No VNC extension on ...
5
votes
1
answer
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How do I force x11vnc to stream lower quality?
I need to access a remote machine via a high latency, slow connection. It uses x11vnc and I want it to broadcast video in much lower quality than what's actually on the screen. First thing that comes ...
5
votes
2
answers
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Getting Tightvnc Server Working on Debian 8 (with KDE)
I have done much research and attempted fixes on this issue, mostly involving tweaking the xstartup file. I've tried alternative VNC clients (UltraVNC and TightVNC) from a Windows 7 computer, with the ...
5
votes
0
answers
2k
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Using VNC without unlocking the lock screen locally
Currently I use VNC to connect to a virtual desktop on my Fedora workstation, which for the most part works fine. But ideally I'd like to connect to my active session on the workstation and access ...
4
votes
0
answers
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Access Ubuntu desktop remotely from Mac OS
I would like to be able to access my Ubuntu 18.04 desktop (not just terminal) from Mac OS (Mojave), and have tried a couple solutions, with less-then-desirable results:
Installing google chrome ...
4
votes
0
answers
685
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Pipe VNC viewer output to /dev device
Using VNCTiger as a VNC viewer, how can I pipe/forward (correct terminology?) the output to one of the /dev devices like video0?
At the moment I use a basic vncviewer command to get the output, as ...
4
votes
0
answers
2k
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VNC to a linux desktop in HiDPI mode won't scale properly
I have a linux mint Cinnamon desktop running in HiDPI.
When I try to connect to it with a VNC client from my macbook (retina/hidpi display), the desktop shows up about 4x too big.
I tried with mac's ...
4
votes
1
answer
734
views
How to make remmina ignore a key?
I like to use the F12 key to bring up an instant yakuake terminal.
However, if I use remmina to start a remote GUI session, if the remmina window is active, then F12 won't bring up the terminal, ...
4
votes
2
answers
389
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Problem with screencapture of flash animation in chromium-browser
I'm using chromium-browser and a vnc4 server to do some thumbnailing of flash resources. This is the version:
$ chromium-browser --version
Using PPAPI flash.
Chromium 48.0.2564.116 Ubuntu 14.04
...
4
votes
1
answer
171
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Make one VNC server appear as two displays in RHEL
I have a VNC server running in virtual mode in RHEL and I am viewing it on a PC which has two screens. I can make the server use both of my screens by setting the resolution large enough:
xrandr -s ...
4
votes
1
answer
826
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How frequently are updates sent to a VNC client?
I am trying to understand how the VNC mechanism works.
The RFB protocol 3.8 specifications say :
The update protocol is demand-driven by the client. That is, an update is only sent
from the ...
4
votes
0
answers
2k
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Using gdm to manage xdmcp authentication over VNC
I've followed a few guides in order to enable XDMCP over VNC, however the end result is an ugly, if functional, default X login screen. It is not utilizing gdm for the authentication process, and I ...
3
votes
0
answers
358
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VNC Server: cannot log in from desktop when logged from VNC user
I have setup VNC server on my laptop. When I log into the laptop via VNC, I cannot log into my laptop from the desktop GUI. The problem is if I close my VNC session and forget to log out from VNC, I ...
3
votes
3
answers
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Error opening browser in VNC session: cannot open display: :1.0
Setup
My goal is to use a web browser in a VNC session.
I followed this page to install tightvncserver with xfce4. The session works fine, i.e. I am able to open all other GUI programs. I ran apt ...
3
votes
1
answer
1k
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10-key (numeric keyboard) not working when connected via VNC to Fedora 35 or Ubuntu 21. Both are using GNOME - is this a bug?
I use VNC (RealVNC "VNC Viewer" app) on my Mac to connect to Linux desktops: Fedora 35 & Ubuntu 21. They both are using GNOME desktop: 41.1 for Fedora, and 40.5 for Ubuntu
I recently ...
3
votes
0
answers
444
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vncviewer is losing caps lock, which I want to remap anyways
I am on a linux system and using vncviewer to connect to other linux servers.
On my home system, I use setxkbmap to remap caps to control, like any decent human being:
setxkbmap -option caps:...
3
votes
0
answers
4k
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virtual monitor when using Nvidia graphics for VNC based second monitor
I am trying to use my iPad (or any tablet) as a second portable monitor with my laptop using a VNC client on my iPad and VNC server showing the second dummy/virtual monitor from laptop.
There are ...
3
votes
0
answers
3k
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realVNC very slow, what is the bottle neck if the network is fast?
I hope this is the right place where to ask this.
Background: I need to connect remotely to a Cents OS 7 server from my ubuntu 18.04 and to use a GUI, but not concerned with image quality: just need ...
3
votes
0
answers
2k
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VNC Black screen using GNOME
I was working in a Oracle Linux server through XRDP with Xvnc(TigerVNC) and the server crash.
After the crash I only can access the server through XRDP with Xorg, but not with Xvnc,
when I try to ...
3
votes
0
answers
134
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Do I need to log into the remote desktop environment first before connecting to it by xpra or VNC?
I connect to a remote Lubuntu PC by:
xpra shadow ssh:t@olive:0
When I log out of the remote Lubuntu, the connection of xpra is lost.
When I try to connect to a remote Lubuntu which I haven't ...
3
votes
1
answer
3k
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Cannot connect to xrdp on Fedora 25 from windows
With a basic install, per:
dnf install -y xrdp
openssl req -x509 -newkey rsa:2048 -nodes -keyout key.pem -out cert.pem -days 365
mv cert.pem /etc/xrdp/
mv key.pem /etc/xrdp/
systemctl start xrdp
...
3
votes
1
answer
5k
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VNC - Too many authentication failures
I've been trying to Google, but all of the issues refers connection from PC to remote VNC server.
So. I have an issue with VNC communication from Android to Linux. I have installed a TightVNC Server ...
3
votes
1
answer
2k
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Can't get rid of x11vnc output
I'm on an Ubuntu system which has a touchscreen set up on display :0.
I wanted to be able to control this touchscreen remotely from Windows, so I set up x11vnc. It works great. But here's the setup:
...
3
votes
0
answers
1k
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Not Able to run simple Java Swing Program on Raspbian on Raspberry Pi 2 Headless connected using tight VNC
I am using a Raspberry Pi 2 model with Debian as the OS.
I tried a simple java swing program that opens a JFrame on it, and it worked fine.
Later, I wanted to use my Pi headlessly i.e. without ...
3
votes
1
answer
1k
views
Where does Linux vncserver (Xvnc) get the list of geometry possiblities
I have looked through through parts of the code, and the places obvious to me, but I have not found the place that I can add legal geometries for a vncserver that I can set using xrandr.
I have tried ...
3
votes
0
answers
509
views
xtightvnc through ssh gateway -- connection refused
Following setup:
homepc -> gateway -> workpc
workpc:~$ tightvncserver :12
homepc:~$ ssh -N gatewayuser@gateway -L 1212:workpc:5912
Now I try to connect via
homepc:~$ xtightvncviewer localhost:1212
...
3
votes
1
answer
712
views
Xtightvnc: Ubuntu gnome-session-fallback: Fonts problem
I'm running a tightvnc server on Ubuntu 11.04 with a Gnome fallback session. Things seem to work fine except that when I try launching an application that needs xfonts-100dpi. All application menus ...
3
votes
1
answer
1k
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Logged into ubuntu via VNC. Windows key seems stuck
I have an ubuntu server running vnc4server and gnome-session.
When i log in remotely using VNC, it appears that the windows key is stuck. This occurs with multiple VNC clients (ultraVNC/realVNC on ...
3
votes
0
answers
505
views
System beep not working in TigerVNC
I just upgraded my Gentoo Linux computer (where I'm running Xvnc from TigerVNC 1.0.90 (1.1 beta 1) compiled myself against xorg-server 1.9.5), and I'm no longer getting any bell sounds, just silence. ...
2
votes
0
answers
2k
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can't start VNC server from a service, Works fine when started from terminal TigerVNC + noVNC
I have a VNC setup using TigerVNC and noVNC on my linux machine (Ubuntu 20.4). It works perfectly when started it from terminal but I want to start it from a service so that it can auto start on boot ...
2
votes
0
answers
539
views
Unable to start Application with sudo when using VNC-Server
I have installed Ubuntu server 20.04 that normally runs headless (without X and DE). Here i have installed xorg, Xfce4 and TightVNC-Server and can connect to the Server from my normal Ubuntu. But i ...
2
votes
1
answer
1k
views
Connect to VNC server inside a docker / podman container with Login screen
We're currently trying to get a Ubuntu 18.04 instance up and running inside a podman container. Our goal is to be able to connect to the linux system inside the container via VNC, we're trying to make ...
2
votes
0
answers
526
views
Help with using VNC on remote Fedora Linux machine at login screen
I have a linux machine at work running Fedora 29 / gnome. I always leave it logged on at work so that when I get home I can remote VNC to it and keep working.
In previous Fedora's (16 I think) I ...
2
votes
0
answers
375
views
2 x11vnc servers with separate displays showing different windows, overlapping
I am running a python (includes pygame) program on debian-jessie system with x11vnc and xvfb installed. I want to display terminal window and pygame window separately using xvfb and x11vnc. My ...
2
votes
0
answers
911
views
QEMU over ssh without using vncviewer
It seems that when I want to run qemu-system-x86_64 on a node via ssh -Y, I have to connect to the guest via VNC. So, here is an example:
[mahmood@rocks7 ~] ssh -Y compute-0-0
[mahmood@compute-0-0 ~] ...
2
votes
0
answers
2k
views
Black Screen on VNC (SUSE Linux)
I used to be able to connect to my server using a VNC Client. However, now the window will open but is (and stays) black.
I can SSH to my server. I restarted vncserver with no effect. I used cat on ...
2
votes
0
answers
1k
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Linux Remote Desktop over the internet, Remmina or other free clients?
I'm trying unsuccessfully to remote desktop from a linux mint 18.3 to another linux mint computer over the internet, without messing with the routers settings or manually opening ports, something ...
2
votes
0
answers
8k
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vncserver exit status 98
I can not get vncserver to start after following
How To Install and Configure VNC Remote Access for the GNOME Desktop on CentOS 7.
I get to sudo systemctl restart vncserver@:4.service and receive ...
2
votes
1
answer
3k
views
error starting tigervnc-server code 98 - fedora27
after installing, creating user, editing etc, when I try to start service I get (after deleting .Xfiles from tmp, @SivaPrasath suggestion)
systemctl start vncserver@:1.service
Job for vncserver@:1....
2
votes
0
answers
3k
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Xstartup file for Gnome 3 session on Ubuntu 16.04
Is it possible to have a TurboVNC session, or indeed and vnc server session, to a Ubuntu 16.04 system display a desktop the same as what one gets when logging in locally, with the Activities bar and ...
2
votes
0
answers
143
views
Xvnc multiscreen setup
I have an old application that uses hardcoded screen names in a multimonitor setup. (8 bit indexed color). it if course does not recognize RandR or Xinemra, but uses both rhost:0.0 and rhost:0.1 for ...
2
votes
0
answers
233
views
Access a running MATLAB instance from command line
I am running a few instances of MATLAB on a server via an SSH tunnel and a VNC server. I started the instances using the desktop (via VNC) but something went wrong and now the desktop is completely ...
2
votes
1
answer
4k
views
How to chain ssh commands over multiple hops?
Is it possible to chain multiple ssh connections together with each connection specified as an ssh host?
I know it's possible to use the -W flag or nc to do a second hop to another hostname or ip ...
2
votes
1
answer
1k
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Connect with Remote Desktop viewer after reboot
I have a computer with Fedora 24 that I often use to control another remote comptuer with Fedora 23.
I can use vinagre to do this, provided that I log in at least once with my user in my remote ...
2
votes
0
answers
212
views
Isolating all audio for a specific user account with Pulseaudio
I've done some Googling on this subject, and looked around on Stack Exchange, but I haven't yet found a question canonically similar to mine. If this is the wrong section of Stack Exchange to ask this ...
2
votes
1
answer
1k
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Booting into VNCViewer on a Raspberry Pi.
Here's my problem. I'm new to Linux scripting and RasPi and I am beating my head against the wall on an issue. I want to use this raspi for displaying a vm using VNC. I got VNC installed. Created a ....
2
votes
0
answers
4k
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Can't add keyboard layout on Debian remote desktop
I want to enable Russian keyboard layout on a Debian remote desktop (connected with Xvnc). dpkg-reconfigure keyboard-configuration changed /etc/default/keyboard as desired:
# KEYBOARD CONFIGURATION ...
2
votes
0
answers
769
views
Why VNC performance seems to have dropped over the years?
I've been using VNC since around 2000 (even earlier), back then I used a 19k cellular modem to connect to my desktop.
Lately I've been connecting to my Ubuntu desktop from my Android phone.
It seems ...
2
votes
0
answers
155
views
How to set up remote graphical sessions on CentOs?
Trying to set up a Centos 6 server configuration where we can automate the running of an application that uses Selenium. In this case, ideally, we should be able to:
Create a graphical session (...
2
votes
0
answers
164
views
Alternate screensaver settings on different X instances
On my desktop system, I run two instances of X-- one is associated with the physical screen, one is associated with a virtual screen (a la vncserver).
I use the physical one to do things related to ...