×

INDI Library v1.8.0 is Released (27 Jul 2019)

INDI Library v1.8.0 is mostly a maintenance release to fix a few bugs in several drivers.

Raspberry rpi4 issues with 4K over VNC

  • Posts: 510
  • Karma: 1
  • Thank you received: 73

Raspberry rpi4 issues with 4K over VNC was created by AstroNerd

If I get the rpi all connected with mouse, keyboard and monitor, and get It running in 4K it works well, then I connect via VNC from another PC while still having the rpi connected to a monitor, it comes up on the PC in VNC in 4K....

BUT as soon as I do the same with no monitor connected to the rpi, all I get is a black screen in VNC with message saying can’t show to desktop at this time...

So, if I set the resolution in raspi config to 95 rather than the default, then try it all again, VNC will now show the rpi desktop but in a really low resolution, and when I try and change it through VNC all the 4K settings have gone, and it’s also very difficult to change the res at all, and when I can 1920x1080 is the highest it will go, but even that is hard to change, it seems to want to stay at about 1200x720 or something like that..

I don’t understand why it will work with monitor connected to rpi but not without, have even tried a dummy HDMI plug...

The problem is that on a 28” 4K monitor even HD res is rubbish..for my needs...

So this rpi4 is no use for my astro set up which requires it to be outside on a telescope, and controlled via VNC from a laptop indoors. :( :(
Stellarmate OS on Raspberry pi3b+ controlled with Kubuntu laptop
Skywatcher EQ8 pro
Meade series 5000 80mm triplet Apo & Meade 8” SCT (de-forked)
Starlight Xpress SXVR H18, SXVR M25c, Lodestar Guide Camera
Pegasus Ultimate Hub for all USB & Power
Pegasus focus motors on both scopes
1 month 1 week ago #40991

Please Log in or Create an account to join the conversation.

  • Posts: 104
  • Thank you received: 27

Replied by han.k on topic Raspberry rpi4 issues with 4K over VNC

Maybe you could try XRDP. It builds a second session rather then copying the existing session as for VNC. I use it for my Pi 4 but up to now in HD.
The following user(s) said Thank You: AstroNerd
1 month 1 week ago #41016

Please Log in or Create an account to join the conversation.

  • Posts: 92
  • Karma: 1
  • Thank you received: 8

Replied by jerry on topic Raspberry rpi4 issues with 4K over VNC

I don't know if it's possible on the Rpi4, but you might try NoMachine as a vnc replacement.
10" Meade SCT on Celestron CGEM DX HC: GEM 5.29.7137 MC: 6.50 6.50,
QHY-5L-II-M 1280x960 3.75um guiding,
Nikon Z7 8256 x 5504, 35.9 x 23.9mm 4.34 um pixel size.
StellarMate OS on RPI4 using kstars-bleeding and Kstars on Odroid-N2.
The following user(s) said Thank You: AstroNerd
1 month 1 week ago #41018

Please Log in or Create an account to join the conversation.

  • Posts: 510
  • Karma: 1
  • Thank you received: 73

Replied by AstroNerd on topic Raspberry rpi4 issues with 4K over VNC

han.k wrote: Maybe you could try XRDP. It builds a second session rather then copying the existing session as for VNC. I use it for my Pi 4 but up to now in HD.


Hi, please Try it in 4K and let me know how you get on...if you have 4K monitor...as I need to run the rpi headless but with 4K across network to my laptop... :)
Stellarmate OS on Raspberry pi3b+ controlled with Kubuntu laptop
Skywatcher EQ8 pro
Meade series 5000 80mm triplet Apo & Meade 8” SCT (de-forked)
Starlight Xpress SXVR H18, SXVR M25c, Lodestar Guide Camera
Pegasus Ultimate Hub for all USB & Power
Pegasus focus motors on both scopes
1 month 1 week ago #41019

Please Log in or Create an account to join the conversation.

  • Posts: 104
  • Thank you received: 27

Replied by han.k on topic Raspberry rpi4 issues with 4K over VNC

Unfortunally, I can't work higher the 1920x1080. It is a small package and installing is as simple as sudo apt-get install xrdp. For me it works very well. If your laptop is Windows, you can use the Microsoft remote desktop directly without any additional installation.
The following user(s) said Thank You: AstroNerd
Last edit: 1 month 1 week ago by han.k.
1 month 1 week ago #41032

Please Log in or Create an account to join the conversation.

  • Posts: 510
  • Karma: 1
  • Thank you received: 73

Replied by AstroNerd on topic Raspberry rpi4 issues with 4K over VNC

han.k wrote: Unfortunally, I can't work higher the 1920x1080. It is a small package and installing is as simple as sudo apt-get install xrdp. For me it works very well. If your laptop is Windows, you can use the Microsoft remote desktop directly without any additional installation.


Had a look into this and will give it a try later...
I normally use a Linux laptop, but if I can get it to work on my windows machine, then that’s a great start and at least I can use on there for now...thanks.. :)
Stellarmate OS on Raspberry pi3b+ controlled with Kubuntu laptop
Skywatcher EQ8 pro
Meade series 5000 80mm triplet Apo & Meade 8” SCT (de-forked)
Starlight Xpress SXVR H18, SXVR M25c, Lodestar Guide Camera
Pegasus Ultimate Hub for all USB & Power
Pegasus focus motors on both scopes
1 month 1 week ago #41034

Please Log in or Create an account to join the conversation.

  • Posts: 510
  • Karma: 1
  • Thank you received: 73

Replied by AstroNerd on topic Raspberry rpi4 issues with 4K over VNC

Superb.....that works perfectly thanks very much.....
Stellarmate OS on Raspberry pi3b+ controlled with Kubuntu laptop
Skywatcher EQ8 pro
Meade series 5000 80mm triplet Apo & Meade 8” SCT (de-forked)
Starlight Xpress SXVR H18, SXVR M25c, Lodestar Guide Camera
Pegasus Ultimate Hub for all USB & Power
Pegasus focus motors on both scopes
1 month 1 week ago #41036

Please Log in or Create an account to join the conversation.

  • Posts: 30
  • Thank you received: 0

Replied by CAS on topic Raspberry rpi4 issues with 4K over VNC

Hello,

hope you're well.

May I ask - are you attempting to get Stars/Ekos/INDI running on the Pi 4 using the Stellarmate image? I ask because I'm very interested in doing this too.

Any information you can share about this I would be very glad to see.

Clear Skies (Someone has to get them :-) )

cas
1 month 6 days ago #41079

Please Log in or Create an account to join the conversation.

  • Posts: 510
  • Karma: 1
  • Thank you received: 73

Replied by AstroNerd on topic Raspberry rpi4 issues with 4K over VNC

CAS wrote: Hello,

hope you're well.

May I ask - are you attempting to get Stars/Ekos/INDI running on the Pi 4 using the Stellarmate image? I ask because I'm very interested in doing this too.

Any information you can share about this I would be very glad to see.

Clear Skies (Someone has to get them :-) )

cas


Hi,
Yes I have latest Kstars and INdI running on the PI4, but not Stellarmate, that will take a while, but runs well on raspbian buster, also runs now in 4K using XRDP on the pi and Remmina Remote Desktop software on Ubuntu laptop...works really well.. :)
Stellarmate OS on Raspberry pi3b+ controlled with Kubuntu laptop
Skywatcher EQ8 pro
Meade series 5000 80mm triplet Apo & Meade 8” SCT (de-forked)
Starlight Xpress SXVR H18, SXVR M25c, Lodestar Guide Camera
Pegasus Ultimate Hub for all USB & Power
Pegasus focus motors on both scopes
1 month 6 days ago #41090

Please Log in or Create an account to join the conversation.

  • Posts: 510
  • Karma: 1
  • Thank you received: 73

Replied by AstroNerd on topic Raspberry rpi4 issues with 4K over VNC

han.k wrote: Unfortunally, I can't work higher the 1920x1080. It is a small package and installing is as simple as sudo apt-get install xrdp. For me it works very well. If your laptop is Windows, you can use the Microsoft remote desktop directly without any additional installation.


Ok I have found a Remote Desktop software for Ubuntu that works really well with XRDP on the pi, it’s called Remmina, and runs a treat.... :) as good if not better than windows Remote Desktop....
Stellarmate OS on Raspberry pi3b+ controlled with Kubuntu laptop
Skywatcher EQ8 pro
Meade series 5000 80mm triplet Apo & Meade 8” SCT (de-forked)
Starlight Xpress SXVR H18, SXVR M25c, Lodestar Guide Camera
Pegasus Ultimate Hub for all USB & Power
Pegasus focus motors on both scopes
1 month 6 days ago #41091

Please Log in or Create an account to join the conversation.

  • Posts: 30
  • Thank you received: 0

Replied by CAS on topic Raspberry rpi4 issues with 4K over VNC

Hi,

thanks for the reply. Sorry, more questions.......

Did you have to compile from source ?
Are you Plate-Solving on the Pi ?
Is buster easy to get hold of ? (Not Pi savvy) Been doing stuff on Arduino.

Grateful if you have time to reply.

Regards,

cas
1 month 6 days ago #41094

Please Log in or Create an account to join the conversation.

  • Posts: 510
  • Karma: 1
  • Thank you received: 73

Replied by AstroNerd on topic Raspberry rpi4 issues with 4K over VNC

CAS wrote: Hi,

thanks for the reply. Sorry, more questions.......

Did you have to compile from source ?
Are you Plate-Solving on the Pi ?
Is buster easy to get hold of ? (Not Pi savvy) Been doing stuff on Arduino.

Grateful if you have time to reply.

Regards,

cas


Yes had to compile from Source..
Yes platesolving all on the pi have downloaded all the index files I need..
Buster is the latest version of raspbian and easy to download
Stellarmate OS on Raspberry pi3b+ controlled with Kubuntu laptop
Skywatcher EQ8 pro
Meade series 5000 80mm triplet Apo & Meade 8” SCT (de-forked)
Starlight Xpress SXVR H18, SXVR M25c, Lodestar Guide Camera
Pegasus Ultimate Hub for all USB & Power
Pegasus focus motors on both scopes
1 month 6 days ago #41106

Please Log in or Create an account to join the conversation.

Time to create page: 0.453 seconds