What would be the most recent and known good Linux version (Yocto Project User's Guide version), distribution and image configuration to be used with IMX6SLEVK and IMXEBOOKDC4 EPDC addon?
Previously, I tried according to IMXLXYOCTOUG (Rev. L4.9.88_2.0.0-ga, 05/2018) using:
DISTRO=fsl-imx-fb MACHINE=imx6slevk source fsl-setup-release.sh -b build-fb
echo "UBOOT_CONFIG = \"epdc\"" >> conf/local.conf
bitbake fsl-image-validation-imx
The compiled image included EPDC test applications, but the framebuffer device for EPDC (/dev/fb2) was always incorrectly configured for 800x1200 resolution:
root@imx6slevk:/unit_tests/Display# ./mxc_epdc_fb_test.out
---- Running < ./mxc_epdc_fb_test.out > test ----
Opened EPDC fb device /dev/fb2
Set the background to 16-bpp
screen_info.xres_virtual = 800
screen_info.yres_virtual = 1280
screen_info.bits_per_pixel = 16
Now I tried to use the more recent version of the Yocto Project User's Guide (Rev. L5.4.70_2.3.0 — 31 December 2020), but I'm not sure what distro and image configuration to use for EPDC on IMX6SLEVK + IMXEBOOKDC4.
