I’ve not had any luck with the raspberry pi touch-display-2.
- Tried on 1.0.68, 1.0.72, 1.0.80, 1.1.28(beta) Ubuntu 20.04 and Ubuntu 24.04
- Modified the dtbo_a partition to load different ili9881 parameters in the mdss_dsi_ili9881_video fragment.
- DSC and non-DSC, 55/60hz, lane-order <0123>, <1032>,<3210>
- lane-count 2/4, and enabling all 4 lanes, dsi-traffic-mode [“non_burst_sync_pulse”, “burst_mode”, “non_burst_sync_event”], mdss-dsi-bllp-power-mode on,off, etc.
- Added a RGB8888 command string to the mdss-dsi-on-command
The error “[drm:dsi_ctrl_isr [msm_drm]] ERROR [msm-dsi-error]: dsi-ctrl-0: dsi PLL unlock error: 0x140” and the screen displayed only garbled green, black, white and purple lines. The backlight comes on as expected. The screen is brand-new and verified working on a Raspberry PI 3B with Raspberry PI OS. Side note which can be seen in the linked log is the presence of Goodix I2c controller initialization failure, but this is tangent to the screen not working.
Link to dmesg logs:
https://drive.google.com/file/d/1NC6IR6_xw0lQ3xoaXi7sGuBktc01-LYB/view?usp=sharing