mattmiller
Posts: 1953
Joined: Thu Feb 05, 2015 11:25 pm

Pi3 doesn't work properly on WiFi over VNC

Sat Jul 21, 2018 11:47 am

(This is just for discussion - its not a real issue for me as I just run the Pi3 on my bench using LAN connection instead)

I have a lot of PiZeroW dotted around the house for IoT and I've got a Pi3 and and Pi3B+ - Issue only happens on the Pi3

I VNC into all of them using RealVNC viewer

I usually set desktop size to 1800x900 (so that its big but fits nicely on my main PC display) by amending framebuffer sizes in config.txt

Code: Select all

# uncomment to force a console size. By default it will be display's size minus
# overscan.
framebuffer_width=1800
framebuffer_height=900
About a year ago, I did this on the Pi3 - and it wouldn't display properly over VNC - when I VNC'd in over WiFi - it just kept trying to display but it was like the old days of downloading a jpg - the top 1/4 of the display appears - then dissapears - repeat ad-infitintum

Its done this across several Raspbian releases

re-comment the framebuffer sizes - works fine over Wifi

Works fine over ethernet with 1800x900

I'm just intrigued as to what the fault could be

(this thread only for the Sherlock Holmes types) :)

klricks
Posts: 5822
Joined: Sat Jan 12, 2013 3:01 am
Location: Grants Pass, OR, USA
Contact: Website

Re: Pi3 doesn't work properly on WiFi over VNC

Sun Jul 22, 2018 4:53 am

Not sure why you are messing with framebuffer settings?
I set hotplug enabled and change only the group and mode.
If you use the resolution setting menu in the GUI config tool or sudo raspi-config then the above edits to config.txt will be done for you.
Unless specified otherwise my response is based on the latest and fully updated Raspbian Stretch w/ Desktop OS.

mattmiller
Posts: 1953
Joined: Thu Feb 05, 2015 11:25 pm

Re: Pi3 doesn't work properly on WiFi over VNC

Sun Jul 22, 2018 8:49 am

Not sure why you are messing with framebuffer settings?
I've always done it that way since Pi came out - its a very simple way of chaining res if you never plug into a monitor

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