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Different display or graphic drivers for Bullseye


 

Okay, I have a portable monitor that stays black with Bullseye, using a rpi4.? I pop in an sd card with buster and no problem, no black screen.? I switch to another portable monitor and no problem with Bullseye, and no black screen. I looked this up, and it seems like an issue with the graphic drivers?? Also, tried different cables, but will keep trying.? Not sure why just this monitor.? I have another? portable monitor arriving tomorrow and I will see.? Has anyone experienced this?


 

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?Hi,

? I have the same problem with two different portable monitors.? Found that the amazon basic cable was the problem with one. But the other one still doesn't work with the new cable.


On 9/28/2022 11:10 PM, Pat .... via groups.io wrote:

Okay, I have a portable monitor that stays black with Bullseye, using a rpi4.? I pop in an sd card with buster and no problem, no black screen.? I switch to another portable monitor and no problem with Bullseye, and no black screen. I looked this up, and it seems like an issue with the graphic drivers?? Also, tried different cables, but will keep trying.? Not sure why just this monitor.? I have another? portable monitor arriving tomorrow and I will see.? Has anyone experienced this?


 
Edited

Okay, I figured out for my issue. My Isotect portable monitor has two hdmi ports, but I've always used the same one with my Buster builds.? Thinking it was the hdmi cables, I tried all kinds.? I decided to try the other port and it worked. I dont have any paperwork anymore so not sure why the other hdmi port works