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No output from 2 external 4k monitors connected on the dock after resumed

Kernel: https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-tip/2022-03-04/

  1. Connect two 4K external monitor to Dell WD22TB4
  2. Put SUT into suspend mode and wait 30sec
  3. Resume SUT from suspend mode, nothing shown on external monitors

It fails with below monitors combination

  1. 4k@60+4k@60
  2. 4k@30+4k@60
  3. 4k@60+2k@60

Can't reproduce this issue with below combination

  1. 4k@30+4k@30
  2. 4k@60+FHD@60

dmesg-drmtip.log

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