qt.qpa.screen: QXcbConnection: Could not connect to display Could not connect to any X display.

[vedranius]

Issue

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Hardware

Device	Connection Method	Screen	Mobile Device	Android Auto Version
Raspberry Pi 4 4GB	USB Cable	Pi-top Display and Pi-top case	Samsung Galaxy S9	latest

Installation Method: Install.sh

Description of problem:

I'm running Pi-Top OS (Raspbian) When I run the ./dash I get the error: qt.qpa.screen: QXcbConnection: Could not connect to display Could not connect to any X display.

Expected Result:

Run Dash and see it on the touchscreen

[vedranius]

Was running it through SSH. Now did it on RPi directly and it's fine. But I get the white screen (dark mode) or MTP device error with two Samsung Galaxy phones (S9 and A8)

[vedranius]

This solved it:

"sudo apt install --no-install-recommends xserver-xorg-video-all xserver-xorg-input-all xserver-xorg-core xinit x11-xserver-utils git"

But not sure how to change resolution of AndroidAuto?

[robert5974]

To change the dpi of Openauto, use the settings icon (gear in the top right corner of the first tab). You will have to do it before connecting the phone since you won't be able to see it after connecting it.

Robert Crowley

On Wed, Oct 6, 2021, 12:05 PM vedranius @.***> wrote:

This solved it:

"sudo apt install --no-install-recommends xserver-xorg-video-all xserver-xorg-input-all xserver-xorg-core xinit x11-xserver-utils git"

But not sure how to change resolution of AndroidAuto?

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[icecube45]

Looks like this was resolved, let us know if you still hit issues.