Fan and power control no longer working since kernel 6.18.29 on DietPi 10.4.2

[986ster]

Since the kernel was updated to 6.18.29 in a DietPi 10.4.2 (Trixie) environment, the fan control and power LED control aren't working properly.

You may be able to manually change the fan speed once or twice, but it appears that the serial interface locks up after a period and doesn't respond to control thereafter.

If you shut down the DeskPi from the command line, the fan won't shut down and the power LED stays blue.

[yoyojacky]

It may need to rollback to bullseye or bookworm, due to the kernel removed the CH340 driver but use CH341 instead.

[986ster]

That's not an option. How about you figure it out with the kernel maintainers and get the driver put back, or deliver a userspace CH340 driver. This is your hardware and your software, so you need to figure out how to make the two of them work together.

[yoyojacky]

That's not an option. How about you figure it out with the kernel maintainers and get the driver put back, or deliver a userspace CH340 driver. This is your hardware and your software, so you need to figure out how to make the two of them work together.

Please clone the latest repo and try again. we are fixed the bug.

[986ster]

It's still not fully fixed. shutdown isn't changing the power switch LED state from blue to red.

DietPi v10.5.2, kernel 6.18.34+rpt-rpi-v8, and the latest deskpi commit.

[yoyojacky]

@986ster how many seconds did you wait for?

[986ster]

I waited 5 minutes before pulling the power cable. I figured it should change from blue to red in that time, since it used to take 5-10 seconds to fully shut down.

[986ster]

I pulled the latest version and it's working fine now. The only thing I noticed is the utility displays DESPI-FAN in large letters, and not DESKPI-FAN. I don't know if this is deliberate for space, or a typo.