Raspberry pi 4 usb mouse and keyboard stop working after upgrade

[mptimonen]

Raspberry pi 4 usb mouse and keyboard stop working after upgrade.

sudo apt update
sudo apt upgrade
=> mouse and keyboard stop working

can be reproduced

sudo rpi-update 993f475
4.19.97
=> mouse and keyboard stop working

/dev/input $ ls
mice

and fixed

sudo rpi-update 77444b0
4.19.81
=> mouse and keyboard works ok

/dev/input $ ls
by-id by-path event0 mice mouse0

[pelwell]

There are quite a few commits between the two you list - try and narrow it down to find the first failing commit (there's a list of commits with hashes at https://github.com/Hexxeh/rpi-firmware/commits/master). Once you have a pair of adjacent commits where one is bad and one good, use sudo SKIP_KERNEL=1 rpi-update to work out if the change was caused by the firmware or the kernel.

[mptimonen]

I think 4.19.84 is first failing version.

sudo rpi-update 16ce6121464d53a9eb9cf68afbdba7ada8ec7bcd
4.19.84
=> mouse and keyboard stop working

I can't test SKIP_KERNEL=1 now. There is API call limitations...

sudo SKIP_KERNEL=1 rpi-update 16ce6121464d53a9eb9cf68afbdba7ada8ec7bcd
*** Github API is currently rate limited - please try again after Mon 27 Jan 2020 06:45:56 PM EET

[pelwell]

That's the commit that modified how voltages are controlled. Try adding over_voltage=2 to config.txt to give it a bit more oomph.

[mptimonen]

sudo SKIP_KERNEL=1 rpi-update 16ce6121464d53a9eb9cf68afbdba7ada8ec7bcd
=> works ok (after installing 4.19.83)

[mptimonen]

sudo rpi-update 16ce6121464d53a9eb9cf68afbdba7ada8ec7bcd
4.19.84

and

config.txt
over_voltage=2

=> it is working ok

[pelwell]

I think you just got lucky that time you didn't update the firmware - you must have a marginal voltage (from the onboard SMPS - I'm not blaming your power supply), and there will be small variations between boots. You might even get away with dropping over_voltage to 1.

[JamesH65]

Extensively covered on the forums - one thread is here. https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=262649