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HDMI

HDMI works with Kernel 4.16 in some cases (1080p,1280×1024). Driver with fbdev was backported to 4.14 and ported to 4.19.in 5.0 hdmi works but fbdev does not.

Discussion in Forum.

Resolution can be set in BPI-BOOT/bananapi/bpi-r2/linux/uEnv.txt:

  bootopts=vmalloc=496M debug=7 initcall_debug=0 video=1280x1024-32

this resolution will be used for both virtual Console and X-Server.

more about this setting: https://nouveau.freedesktop.org/wiki/KernelModeSetting/

to resize only font on Console this can be done:

  setfont Uni3-TerminusBold32x16.psf.gz

available fonts are in /usr/share/consolefonts/

Thanks to ForumUser Alex R. aka “DeadMeat”

Normally hdmi will be turned off if no monitor is connected (or switched off) while bootup. You can change this with a video-option:

video=HDMI-A-1:1280x1024-32@60D

This keeps hdmi enabled and allow hotplug,but in my case there is a resolution-issue.

http://forum.banana-pi.org/t/bpi-r2-hdmi-in-uboot-and-linux/4651/123

DRM Debugging

add “drm.debug=0x04” to bootopts in uEnv.txt (maybe 0x07 optionally with log_buf_len=1M)

Discussion

en/bpi-r2/hdmi.txt · Last modified: 2019/02/26 19:08 by frank