On Sun, Aug 08, 2021 at 05:29:30PM +0200, Stephan Gerhold wrote: > > 2) The driver works good, if the kernel is launched via "fastboot boot". > > But if the kernel is flashed to eMMC and launched by bootloader with > > splash screen, kernel will fail to bring up the panel. After kernel > > boots up, a blank & unblank cycle can get panel work though. > > > > The problem 2) is not driver generator related. @Konrad, did you see > > it on asus-z00t-tm5p5-n35596 driver? > > > > Do you have CONFIG_DRM_MSM=y (built-in) instead of =m (module) maybe? > I think a similar issue exists on MSM8916 but it does not happen > for some reason if CONFIG_DRM_MSM=m instead of =y. Somehow having it > load later during the boot process fixes some things there. Indeed! I have CONFIG_DRM_MSM=y in my build, and changing it to module removes the problem. Thanks much for the hint, Stephan! Shawn
