Very laggy UI

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juliusd
Posts: 8
Joined: Wed Oct 10, 2018 7:51 pm

Very laggy UI

Post by juliusd » Wed Oct 10, 2018 8:01 pm

Hello,
I have RPI B+, recently bought OpenAuto pro and enjoyed it for the most part except for very slow and stuttering animations and long response times in the main OpenAuto menu.

When starting OpenAuto from terminal I am getting warning:
"JIT is disabled for QML. Property bindings and animations will be very slow. Visit https://wiki.qt.io/V4 to learn about possible solutions for your platform."
Could this be the reason?

All I've installed was kuman touchscreen driver: https://github.com/goodtft/LCD-show
Also I'm running on 2A supply source but no low power warning.

User avatar
Chrisfromwa
Posts: 33
Joined: Wed Sep 19, 2018 2:21 pm

Re: Very laggy UI

Post by Chrisfromwa » Wed Oct 10, 2018 8:43 pm

Yes I've also noticed the lag between screens and the animations.
Hopefully this is something that can be improved on a future version.

BlueWave
Site Admin
Posts: 141
Joined: Tue Sep 18, 2018 6:30 am

Re: Very laggy UI

Post by BlueWave » Wed Oct 10, 2018 9:50 pm

Looks like installation scripts of your LCD use outdated desktop driver. Try to change it to Fake KMS by adding below lines to /boot/config.txt file

Code: Select all

gpu_mem=256
dtoverlay=vc4-fkms-v3d

juliusd
Posts: 8
Joined: Wed Oct 10, 2018 7:51 pm

Re: Very laggy UI

Post by juliusd » Thu Oct 11, 2018 5:15 pm

Setting in to fake kms helped alot. It is a joy to use.

Thank you.

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