i.MX ProcessorsのトピックAndroid 8 boot logo changes colors

Android 8 boot logo changes colors

dcraw — Fri, 06 Jul 2018 00:20:27 GMT

We have a imx6dl product correctly displaying a custom kernel boot logo (logo linux_clut224.ppm) via LVDS on NXP Android 6. However, on Android o8.0.0_1.0.0-ga release there is a slightly odd behavior. The boot logo image initially displays fine, but right before the "android" boot animation begins the boot logo color palette changes for a brief moment (yellow colors change to blue for about a second). But, then the android boot animation runs correctly and the android Launcher3 home screen then displays correctly. It is just this odd transition between the kernel boot logo and the android boot animation. Also, whenever the device wakes from sleep the odd (blue) boot logo flashes on the screen very quickly (1/2 second) before the lock screen appears. it looks like perhaps the screen/overlay is not getting properly cleared between the kernel boot logo and the boot animation.

Re: Android 8 boot logo changes colors

dcraw — Fri, 06 Jul 2018 18:21:55 GMT

I must be related to how the different mxc:fbx devices are configured on the /proc/cmdline for our device. I fixed the problem by commenting out this line in init.freescale.rc:

# deattch the fbcon as hdmi hotplug conflict with fbcon

# write /sys/class/vtconsole/vtcon1/bind 0

Re: Android 8 boot logo changes colors

diegoadrian — Mon, 23 Jul 2018 20:15:28 GMT

Hello,

Thank you for sharing your result.

Best Regards,

Diego.