So we are at least some people, who still wants to get the feiyang display getting work on the pine64. @Learnincurve Looks like the kernel 5.4 has not all bits to get it work. With the 5.6 kernel we are at the same state as 2 years before. The whole DE-pipeline is recognized, but the panel remains out of order because of the vblank issue. @Gavinb Could you do us a favor an test the panel wit the 5.6 kernel? If it is working we could maybe find out the differences. I comment some findings at your github tree for the display patch. The option that I see, we are have now: Asking on irc channel of linux-sunix or the linux-sunxi mailinglist how the vblank isusse can be debugged.