Questions tagged [vnc]

Virtual Network Computing (VNC) is a graphical desktop sharing system that can be used to control a computer remotely.

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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 ...
Dims's user avatar
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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 ...
ᴍᴇʜᴏᴠ's user avatar
5 votes
2 answers
13k views

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 ...
rvenner's user avatar
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5 votes
0 answers
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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 ...
Crunched's user avatar
  • 141
4 votes
0 answers
1k views

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 ...
karlk's user avatar
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4 votes
0 answers
685 views

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 ...
Benjamin Scholtz's user avatar
4 votes
0 answers
2k views

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 ...
marathon's user avatar
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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, ...
LINUX G33NYUS's user avatar
4 votes
2 answers
389 views

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 ...
Max Williams's user avatar
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4 votes
1 answer
171 views

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 ...
nguthrie's user avatar
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4 votes
1 answer
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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 ...
AnkurVj's user avatar
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4 votes
0 answers
2k views

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 ...
coder543's user avatar
  • 141
3 votes
0 answers
358 views

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 ...
supmethods's user avatar
3 votes
3 answers
9k views

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 ...
Paul Smith's user avatar
3 votes
1 answer
1k views

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 ...
KidACrimson's user avatar
3 votes
0 answers
444 views

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:...
David Ljung Madison Stellar's user avatar
3 votes
0 answers
4k views

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 ...
kvng vikram's user avatar
3 votes
0 answers
3k views

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 ...
a_bet's user avatar
  • 141
3 votes
0 answers
2k views

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 ...
Joseleg's user avatar
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3 votes
0 answers
134 views

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 ...
Tim's user avatar
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3 votes
1 answer
3k views

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 ...
swv's user avatar
  • 319
3 votes
1 answer
5k views

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 ...
Weird E.'s user avatar
3 votes
1 answer
2k views

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: ...
MD-7's user avatar
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3 votes
0 answers
1k views

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 ...
Amit Chakradeo's user avatar
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 ...
ElderDelp's user avatar
  • 333
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 ...
user21839213's user avatar
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 ...
Joseph R.'s user avatar
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3 votes
1 answer
1k views

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 ...
muzzamo's user avatar
  • 265
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. ...
cjm's user avatar
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2 votes
0 answers
2k views

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 ...
ahmed's user avatar
  • 121
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 ...
fmeier's user avatar
  • 321
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 ...
A. Neumann's user avatar
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 ...
Marc's user avatar
  • 21
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 ...
Tapan Halani's user avatar
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 ~] ...
mahmood's user avatar
  • 1,201
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 ...
Janothan's user avatar
  • 121
2 votes
0 answers
1k views

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 ...
lind's user avatar
  • 129
2 votes
0 answers
8k views

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 ...
Amstell's user avatar
  • 121
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....
xm1's user avatar
  • 121
2 votes
0 answers
3k views

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 ...
andro's user avatar
  • 121
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 ...
hildred's user avatar
  • 5,829
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 ...
Erik M's user avatar
  • 121
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 ...
ws_e_c421's user avatar
  • 519
2 votes
1 answer
1k views

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 ...
user22710's user avatar
  • 173
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 ...
i336_'s user avatar
  • 1,017
2 votes
1 answer
1k views

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 ....
Blake's user avatar
  • 21
2 votes
0 answers
4k views

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 ...
Alexey Romanov's user avatar
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 ...
Didi Kohen's user avatar
  • 1,841
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 (...
Juan Carlos Coto's user avatar
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 ...
jhfrontz's user avatar
  • 359

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