dtoverlay wont load 2 modules same time

[oversizewizard]

hi im trying to get my camera and display working together

this is what im trying

dtoverlay="ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900","vc4-kms-v3d"

comes up cant load overlay ads7846 but the screen works with touch but the camera don't

so i tried other way around

dtoverlay="vc4-kms-v3d","ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900"

now i get can't load vc4.kms.-v3d but screen works fine but camera don't I get DRI2: failed to authenticate

ive also tried
dtoverlay=vc4-kms-v3d
dtoverlay="ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900

this only loads the vc4-kms-v3d and only camera works.


When i installed octopi image and put this line in dtoverlay="ads7846,cs=1,penirq=25,penirq_pull=2,speed=50000,keep_vref=0,swapxy=0,pmax=255,xohms=150,xmin=200,xmax=3900,ymin=200,ymax=3900","vc4-kms-v3d" both camera and screen touch works fine.

why does this work on octopi but not on Pi OS 64bit?

whats different?

please help, loosing will to live lol

[6by9]

If you're talking of adding entries to /boot/config.txt, then quotes are not needed, and it does not take multiple overlays.

ads7846 is an SPI touch controller, and vc4-kms-v3d is the display driver. Where does a camera come into this? And what display is the ads7846 acting as a touch controller for?