Raspberry Pi 3, problems with screen resolution using VNC
Posted: Sat Jun 15, 2019 5:58 pm
I’m trying to set up a Raspberry pi to remotely control an RSP 2, I’ve downloaded the image and it works great locally. However when I use VNC to log on to the pi I run into a problem.
If I’ve got a monitor connected to the pi the VNC session opens in the same resolution as the monitor, which is good. However if I run the pi without a monitor, I.e. headless, VNC will only open at a default resolution of 720 x 480 and I can’t change it. This is far too small for apps such as Cubic SDR.
I’ve followed the instructions for changing resolution on VNC’s web site, I.e. editing the pi’s config.txt file. But whenever I run the pi headless with the SDRplay image it will only open at 720x480. If I boot my pi using a standard raspberry pi image I can set the VNC display to whatever I like in headless mode. It looks like something in the SDRplay image is overwrite is the pi’s config file to put VNC back to default.
Where do I look to get my VNC sessions for a headless pi running on a better resolution?
If I’ve got a monitor connected to the pi the VNC session opens in the same resolution as the monitor, which is good. However if I run the pi without a monitor, I.e. headless, VNC will only open at a default resolution of 720 x 480 and I can’t change it. This is far too small for apps such as Cubic SDR.
I’ve followed the instructions for changing resolution on VNC’s web site, I.e. editing the pi’s config.txt file. But whenever I run the pi headless with the SDRplay image it will only open at 720x480. If I boot my pi using a standard raspberry pi image I can set the VNC display to whatever I like in headless mode. It looks like something in the SDRplay image is overwrite is the pi’s config file to put VNC back to default.
Where do I look to get my VNC sessions for a headless pi running on a better resolution?