When I switch folders in pcmanfm-qt, black discontinuous lines appear on the screen and disappear very quickly then. I have Intel HD Graphics 530 working on my laptop.There was no such issue with 21.04 or older distros.
Please suggest in which direction I should go to solve it.
More info below.
If I add nomodeset in the grub, black lines will not appear. Since I have external monitor connected, I have to remove nomodeset.
I tried with xubuntu 21.10 and found there’s no such issue with it. From this fact I think it’s lxqt’s problem.
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