PROCESSOR-SDK-AM335X: AM335X-EVMSK touchscreen doesn't support in PSDK 6.3.0.106

Hello Tesla,

Are you seeing the calibration screen on first boot?

Regards,

Nick

Hi Nick

no, and I have tried to calibrate as

http://software-dl.ti.com/processor-sdk-linux/esd/docs/latest/linux/How_to_Guides/Target/How_to_Recalibrate_the_Touchscreen.html

It didn't help either.

But when i test with weston-simple-touch, it works but with direction mirrored.

Best Regards

Tesla.Yu

Hi Nick 

Any updated?

Best Regards 
Tesla.Yu

Any updated?

Hello Tesla,

Thank you for the ping. I am not sure where the QT calculator is, but I am able to replicate your observations with the test programs under SDKs 6.1 and 6.3 folders /usr/share/qt5/examples/touch. I am reassigning this thread to another engineer who has spent some time looking at the "Could not set DRM mode for screen LVDS1 (invalid argument)" error.

Regards,

Nick

Hi Tesla,

With regards to the eglfs issue, it is a known bug in our 6.3 release. Please refer to the following thread for a fix: https://e2e.ti.com/support/processors/f/791/p/913245/3405591#3405591 or revert back to PSDK6.1.

Regards,
Krunal

Krunal Bhargav34 said:

Hi Tesla,

With regards to the eglfs issue, it is a known bug in our 6.3 release. Please refer to the following thread for a fix: https://e2e.ti.com/support/processors/f/791/p/913245/3405591#3405591 or revert back to PSDK6.1.

Regards,
Krunal

Hi Krunal

     I want to known when it will to release a newer SDK to fix this issue(or how to fix it in 6.3), because we found the touch event consumes lots of CPU usage in SDK 6.1

Thanks!

Tesla.Yu

Hello Tesla,

As I mentioned in the previous post, please refer to the following thread for fixing the issue on PSDK6.3:

Regards,
Krunal

Hi Krunal

Do you mean to apply patch 0001-eglfs-Force-888-format-only-on-env-flag.patch in /arago-tmp-external-arm-toolchain/work/armv7at2hf-neon-linux-gnueabi/qtbase/5.11.3+gitAUTOINC+08de243eaa-r0.arago16.tisdk5.7/git ?

I have tried to copy the images below to SDK 6.3 rootfs in SD card (through tftp)

Best Regards

Tesla.Yu

Hello Tesla,

I was able to replicate the same issue on my AM335x SKEVM. Based on the initial debug (QT_QPA_EGLFS_DEBUG=1), Qt seems to be using the following config:

EGL_BUFFER_SIZE: 32
EGL_ALPHA_SIZE: 8
EGL_BLUE_SIZE: 8
EGL_GREEN_SIZE: 8
EGL_RED_SIZE: 8
EGL_DEPTH_SIZE: 0
EGL_STENCIL_SIZE: 0

However, the LCD only supports RG24 and Qt is not picking the correct configuration. I have filed an internal bug and I am discussing with our software team. In the meantime, please continue using PSDK6.1 for further development.

Regards,
Krunal

Hi Krunal 

Thanks a lot!