Lenovo 82TQ - Internal DSI display unusable - various groups of rows with totally noisy pixels

On Linux 6.6 is the display on the tablet unusable, see the picture:

The noisy rows depends on graphic group context, mouse cursor affects it.

Short info extract:

xrandr:
  1600x2560 (0x46) 278.702MHz +HSync +VSync *current +preferred
        h: width  1600 start 1660 end 1680 total 1720 skew    0 clock 162.04KHz
        v: height 2560 start 2672 end 2676 total 2694           clock  60.15Hz

dmesg:
[CRTC:80:pipe A] mismatch in hw.pipe_mode.crtc_htotal (expected 1720, found 1722)
[CRTC:80:pipe A] mismatch in hw.pipe_mode.crtc_hblank_end (expected 1720, found 1722)
[CRTC:80:pipe A] mismatch in hw.pipe_mode.crtc_hsync_start (expected 1660, found 1662)
[CRTC:80:pipe A] mismatch in hw.adjusted_mode.crtc_htotal (expected 1720, found 1722)
[CRTC:80:pipe A] mismatch in hw.adjusted_mode.crtc_hblank_end (expected 1720, found 1722)
[CRTC:80:pipe A] mismatch in hw.adjusted_mode.crtc_hsync_start (expected 1660, found 1662)

Full system parameters:

i915_bugreport

Full kernel log:

i915_dmesg_6.6.9

On Linux 6.5 it is OK, kernel log is similar (shows also pipe config mismatch):

i915_dmesg_6.5.9

vbt