Raspberry Pi 4 7 Touchscreen

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Raspberry Pi 4 7 Touchscreen

Postby pauledd » Mon Aug 02, 2021 3:09 pm

Hi

I own a Raspberry Pi 4 and the official 7" Touchscreen. The screen works on raspian.
I followed ARMv7 Installation.
I did not set anything in the config.
The device boots fine, I see boot messages on the screen until the login prompt, then the screen goes to some kind
of weird behavior drawing fine vertical lines and flickering. That behavior is well known if the screen is in an undefind state
especially during reboots. Pressing CRTL-ALT-F2...etc does nothing.

Any ideas?
pauledd
 
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Re: Raspberry Pi 4 7 Touchscreen

Postby graysky » Mon Aug 02, 2021 3:51 pm

Need more debug info. It could be that linux-raspberrypi4 is not providing something or that additional setup is required. You might have better luck posting to the official rpi forums as well. https://www.raspberrypi.org/forums/viewforum.php?f=29
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