Got NULL buffer!

Question

Got NULL buffer!

adminy opened this issue 2 years ago · 3 comments

I'm trying to use pi as a second screen for my mac.

I've placed my monitor vertical but for some reason that is not using the vertical screen, its trying to fit into a horizontal resolution. (is there a way to specify 1080x1920 rather than 1920x1080?)

Anyways, the mouse is super laggy even on small resolutions and it crashes with "Got NULL buffer!" within the first few seconds of being connected. No other errors even with debug mode on.

The problem seems to dissapear once I comment out display_rotate=3
and comment in dtoverlay=vc4-fkms-v3d but then I cannot flip the display 270 degrees. only from rpiplay.

Answer 1 · 2022-10-24T15:57:49.000Z

Same problem here

Answer 2 · 2022-10-24T16:15:36.000Z

You’re out of memory. Please make sure your graphics split is large enough.

Answer 3 · 2022-10-24T18:01:43.000Z

@pallas, I've increased it from 64 to 256 and still getting the NULL buffer error. I should have mentioned that the problem was not there when the RPi was on Wifi. Now it is connected to via ethernet.