search

pop-os / pop

A project for managing all Pop!_OS sources
https://system76.com/pop
2.44k stars 87 forks source link

Keyboard backlight issues #3299

Open sriniferal opened 4 months ago

sriniferal commented 4 months ago

Distribution (run cat /etc/os-release): NAME="Pop!_OS" VERSION="22.04 LTS" ID=pop ID_LIKE="ubuntu debian" PRETTY_NAME="Pop!_OS 22.04 LTS" VERSION_ID="22.04" HOME_URL="https://pop.system76.com" SUPPORT_URL="https://support.system76.com" BUG_REPORT_URL="https://github.com/pop-os/pop/issues" PRIVACY_POLICY_URL="https://system76.com/privacy" VERSION_CODENAME=jammy UBUNTU_CODENAME=jammy LOGO=distributor-logo-pop-os

Related Application and/or Package Version (run apt policy $PACKAGE NAME): system76-power profile Power Profile: Balanced Backlight amdgpu_bl1: 85/255 = 33%

Issue/Bug Description: The backlight on my pangolin (pang11) has stopped working and it is stuck in a blue light. I cannot turn it off, increase/decrease the brightness, nor change the colour. The Fn keys work normally, and it is not an keyboard issue. The backlight disappears when the laptop goes to sleep (Fn+F12 on my laptop), it cannot be turned on after exiting the sleep mode.

This seems to be a software issue as the same problem is not faced if I boot using a live disk. I’m not sure if this is due to any recent software updates.

Steps to reproduce (if you know):

Expected behavior:

Other Notes:

leviport commented 4 months ago

I wonder if this is related to https://github.com/pop-os/linux/issues/321

Could you try this command and a reboot to see if it helps?

sudo dpkg-reconfigure system76-acpi-dkms
sriniferal commented 4 months ago

Tried the above command, the issue is unresolved.

leviport commented 4 months ago

Tried the reboot as well, I presume?

Oh well, it was worth a try. Thanks for giving it a shot.

jdrck commented 4 months ago

The same thing has occurred on my Gazelle 15 (Pop OS 22.04 LTS). Stuck in blue light after a recent reboot. Odds are it's due to a recent software update which completed during the reboot. Rebooting, reinstalling system76-acpi-dkms, sudo dpkg-reconfigure system76-acpi-dkms didn't help

leviport commented 4 months ago

This may be the same issue as https://github.com/pop-os/linux/issues/319

daaang commented 4 months ago

I'm having the same issue on an addw1 laptop. I rebooted earlier today, and the keyboard did its usual blue -> green -> red -> blue. Normally, at that point, it turns off (I'm not a keyboard backlight enjoyer) and I decrypt the disk, but now it's just staying blue no matter what (which has to be the worst possible option?? Like, at least red or green LEDs wouldn't be so bad)

I tried dpkg-reconfigure system76-acpi-dkms, then rebooting, and same issue.

Thanks to the OP here, I did try putting to sleep and waking up, which essentially solves the issue for me, in that the backlight is off, which is all I ever want. Thanks, OP!

More generally though, the keyboard backlight Fn keys are not doing anything, so I'm another data point here.

More data that may or may not be relevant (I never thought to run this back when it was working, so I've no diff to offer):

$ ls /sys/class/backlight
intel_backlight       # this is the monitor
groknroll commented 4 months ago

Running sudo apt install --reinstall system76-dkms system76-acpi-dkms seems to have fixed the issue on my pang11.

WilburTheMango commented 4 months ago

Gazelle 15, reinstalling system76-dkms system76-acpi-dkms and rebooting solved the issue.

sriniferal commented 4 months ago

Thanks. I reinstalled system76-dkms system76-acpi-dkms and a reboot fixed the issue.

daaang commented 3 months ago

Yes, thank you!

apt-get install --reinstall system76-dkms system76-acpi-dkms

fixed it for me (addw1) as well.