Raspberry Pi 3B Distorted U-boot Display
- Reply: Archimedes Gaviola : "Re: Raspberry Pi 3B Distorted U-boot Display"
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Date: Sat, 26 Feb 2022 03:49:54 UTC
Hi, I've installed FreeBSD 13.0-RELEASE and 14.0-CURRENT successfully with Raspberry Pi 3B. However, upon U-boot initialization stage the monitor display is distorted as you can see here https://pasteboard.co/hxDjJHwxXPc8.jpg but when the FreeBSD kernel is loaded it displays normal as you can see here https://pasteboard.co/EkgcZdQSxjtA.jpg. I am thinking of lowering the resolution so I tried changing the HDMI configuration settings in the config.txt but it cannot be changed, it has no effect. It always stays on the default 1366x768 as what dmesg has detected. This behavior is also observed in 14.0-CURRENT. FreeBSD 13.0-RELEASE #0: Sat Feb 19 14:09:03 PST 2022 root@fbsd13:/usr/src/sys/arm64/compile/GENERIC arm64 FreeBSD clang version 11.0.1 (git@github.com:llvm/llvm-project.git llvmorg-11.0.1-0-g43ff75f2c3fe) VT(efifb): resolution 1366x768 ... fb0: <BCM2835 VT framebuffer driver> on simplebus0 fb0: keeping existing fb bpp of 32 fbd0 on fb0 WARNING: Device "fb" is Giant locked and may be deleted before FreeBSD 14.0. VT: Replacing driver "efifb" with new "fb". fb0: 1366x768(1366x768@0,0) 32bpp fb0: fbswap: 1, pitch 5504, base 0x3e7f2000, screen_size 4227072 freebsd@fbsd13:~ % cat /boot/msdos/config.txt [all] arm_64bit=1 dtparam=audio=on,i2c_arm=on,spi=on dtoverlay=ds3231 dtoverlay=mmc dtoverlay=disable-bt device_tree_address=0x4000 kernel=u-boot.bin enable_uart=1 [pi4] hdmi_group=2 hdmi_mode=11 armstub=armstub8-gic.bin freebsd@fbsd13:~ % grep -r "1366x768" /boot/msdos/ Binary file /boot/msdos/start_cd.elf matches Binary file /boot/msdos/start_db.elf matches Binary file /boot/msdos/start_x.elf matches Binary file /boot/msdos/start.elf matches Binary file /boot/msdos/start4.elf matches Binary file /boot/msdos/start4cd.elf matches Binary file /boot/msdos/start4db.elf matches Binary file /boot/msdos/start4x.elf matches Using the same images with 13.0-RELEASE and 14.0-CURRENT this issue does not occur in RPi 4B. Anyone encountered this issue? I confirmed this as well with another new RPi 3B hardware and it behaves the same. Please see attached dmesg log output for reference. Thanks, Archimedes