16-bit framebuffer only with the lastest kernel · Issue #3331 · raspberrypi/linux · GitHub
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16-bit framebuffer only with the lastest kernel #3331

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@BigMuscle85

When using custom compiled kernel (4.19.81-v7+) or the latest beta kernel (via rpi-update), frame buffer has 16-bit depth only. Setting framebuffer_depth=32 makes no difference. Also X server displays 16-bit colors only. This does not happen when using the kernel 4.19.75-v7+.

I would expect 32-bit frame buffer by default or accepting framebuffer_depth=32 in /boot/config.txt.

  • Raspberry Pi 3B+ with 7" touch display
  • Raspbian Buster Lite
  • Kernel version 4.19.81-v7+
pi@raspberrypi:~$ fbset

mode "800x480"
geometry 800 480 800 480 16
timings 0 0 0 0 0 0 0
rgba 5/11,6/5,5/0,0/16
endmode 

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