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This repository contains pre-compiled binaries of the current Raspberry Pi kernel and modules, userspace libraries, and bootloader/GPU firmware.
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Raspberry pi 4B (4GB RAM) turning HDMI off locks board up #1410

Open thedjnK opened 4 years ago

thedjnK commented 4 years ago

Describe the bug

This seems to be similar to this bug https://github.com/raspberrypi/firmware/issues/1409 but has different action. It was tested with a 5.4.45-v8+ kernel, 62fc8c01165a80021054a430182b504f7b877c2d commit of this repository and with the HDMI cable connected. The board powers up, I login and then turn HDMI off using tvservice --off, at this point the board is dead, it stops processing network packets and I am unable to get the screen back on by pressing up, backspace 3 times, typing on and pressing enter.

To reproduce

I only have 1 board and 1 SD card so haven't tried reproducing it freshly. How it happens on my board is I have arch linux arm (64-bit) installed, I had a custom built 5.4.45-v8+ kernel. I upgraded all packages and rebooted (power, HDMI and ethernet connected), logged in to the system and then issued the command tvservice --off.

In my config.txt is:

gpu_mem=64
kernel=kernel8.img
dtparam=i2c_arm=on
arm_64bit=1

In my cmdline.txt is:

console=ttyS0,115200 console=tty0 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=bfq rw rootwait dwc_otg.speed=1 dwc_otg.host_support_fs_ls_low_power=1 dwc_otg.host_ls_low_power_phy_clk=1 dwc_otg.fiq_fix_enable=1

Expected behaviour

The HDMI display to turn off and the board to continue running.

Actual behaviour

HDMI turns off but the board is dead.

System

Model: Raspberry Pi 4B (4GB)
OS: Arch Linux Arm 64-bit
Firmware: I've since gone back to an older version, but the commit of the firmware package where the problem is apparent is 62fc8c01165a80021054a430182b504f7b877c2d
Kernel: 5.4.45-v8+, commit from kernel checkout is c9c0a30fbf19cfdc3abdf8ef2ff6427fb5772be1

Logs

Cannot get a log as the board is dead after running the command.

alanbork commented 4 years ago

can't reproduce on Linux raspberrypi 5.4.61-v7l+ #1339 SMP Tue Sep 1 18:51:27 BST 2020 armv7l GNU/Linux

root@raspberrypi:~# tvservice --off
Powering off HDMI
root@raspberrypi:~# tvservice -s
state 0x2 [TV is off]
timg236 commented 1 year ago

It sounds like this is no longer a problem.