Dragon12
Posts: 61
Joined: Thu Jul 18, 2013 10:33 am

Beginner VNC question

Sat Aug 25, 2018 9:02 pm

Thank you for reading this.

I've run into a beginner problem getting VNC running. It used to run without any problems a few years ago but now I cannot get past this error:

phil@phil-ThinkPad-T420:~$ vncviewer
Connected to RFB server, using protocol version 3.3
No configured security type is supported by 3.3 VNC Viewer

I used to run xtightviewer on my Linux laptop but since that wasn't working I then installed real viewer but that didn't help either.

This is what I used to do:

enter vncserver :1 in raspberry pi terminal
run xtightviewer on the laptop. A tiny dialogue box would then appear asking for the raspberry pi's address which would be 192.168.x.x :1. Once that was accepted then a second dialogue box asked for the password.

I think vnc server now runs on the pi without specifically starting it if enable is set to "yes". I've tried without :1 and I've searched the Internet for any clues. I see than many people have asked a similar question.

klricks
Posts: 7154
Joined: Sat Jan 12, 2013 3:01 am
Location: Grants Pass, OR, USA
Contact: Website

Re: Beginner VNC question

Sun Aug 26, 2018 2:49 am

Dragon12 wrote:
Sat Aug 25, 2018 9:02 pm
Thank you for reading this.

I've run into a beginner problem getting VNC running. It used to run without any problems a few years ago but now I cannot get past this error:

phil@phil-ThinkPad-T420:~$ vncviewer
Connected to RFB server, using protocol version 3.3
No configured security type is supported by 3.3 VNC Viewer

I used to run xtightviewer on my Linux laptop but since that wasn't working I then installed real viewer but that didn't help either.

This is what I used to do:

enter vncserver :1 in raspberry pi terminal
run xtightviewer on the laptop. A tiny dialogue box would then appear asking for the raspberry pi's address which would be 192.168.x.x :1. Once that was accepted then a second dialogue box asked for the password.

I think vnc server now runs on the pi without specifically starting it if enable is set to "yes". I've tried without :1 and I've searched the Internet for any clues. I see than many people have asked a similar question.
RealVNC is installed by default. You only need to enable it using the GUI config tool or sudo raspi-config then reboot.
If you don't have a HDMI monitor attached then you will likely want to set a screen resolution as well.

You will need to download the appropriate viewer software for the remote computer from here: https://www.realvnc.com/en/connect/download/viewer/
Unless specified otherwise my response is based on the latest and fully updated RPiOS Buster w/ Desktop OS.

Dragon12
Posts: 61
Joined: Thu Jul 18, 2013 10:33 am

Re: Beginner VNC question

Sun Aug 26, 2018 7:29 am

I've found where the problem is but not a solution. The problem is with the Linux version of realvnc. However, xtightviewer also gives the same error message whereas is worked perfectly the previous time that I used it which was probably a couple of years ago.

I've installed the Android and Windows versions of Realvnc and both work perfectly. Raspberry pi to Raspberry pi also works perfectly. Why vnc no longer works from my Linux laptop is a complete mystery. It seem that many others are having the same trouble.

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