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Groups > linux.debian.kernel > #90745

Bug#1125001: linux-image-loong64: Backlight and touchpad doesn't work on laptop.

Cross-posted to 2 groups.

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Package: linux-image-loong64
Version: 6.17.12-1
Severity: important
X-Debbugs-Cc: debian-loongarch@lists.debian.org
User: debian-loongarch@lists.debian.org
Usertags: loong64

Dear Maintainer,
I have been using Loongson 3A6000 laptops for some time now, but the 
backlight on these laptops has always been unadjustable, and their 
touchpads are also nonfunctional. Every time I go out, I have to bring 
my own mouse, which is very inconvenient! Moreover, the screen backlight 
cannot be adjusted, and it constantly hurts my eyes.

I have learned that some distros have already got relevant patches 
(https://loongfans.cn/en/pages/guides/errata-laptop.html), and I hope 
you can fix these issues sincerely.

The system info of my laptops:

* https://linux-hardware.org/?probe=b3d3e52355

* https://linux-hardware.org/?probe=bb12ab2e29

Regards,

larryw3i


-- System Information:
Debian Release: forky/sid
APT prefers unstable
APT policy: (500, 'unstable')
Architecture: loong64 (loongarch64)

Kernel: Linux 6.17.12+deb14-loong64 (SMP w/8 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE 
not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-loong64 depends on:
ii linux-image-6.17.12+deb14-loong64 6.17.12-1

linux-image-loong64 recommends no packages.

linux-image-loong64 suggests no packages.

-- no debconf information

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Bug#1125001: linux-image-loong64: Backlight and touchpad doesn't work on laptop. larryw3i <larryw3i@yeah.net> - 2026-01-08 09:50 +0100
  Bug#1125001: linux-image-loong64: Backlight and touchpad doesn't work on laptop. Salvatore Bonaccorso <carnil@debian.org> - 2026-01-13 13:10 +0100
    Bug#1125001: linux-image-loong64: Backlight and touchpad doesn't work on laptop. larryw3i <larryw3i@yeah.net> - 2026-01-13 14:40 +0100
      Bug#1125001: linux-image-loong64: Backlight and touchpad don't work on laptop. larryw3i <larryw3i@yeah.net> - 2026-01-22 13:00 +0100
  Processed: Re: Bug#1125001: linux-image-loong64: Backlight and  touchpad doesn't work on laptop. "Debian Bug Tracking System" <owner@bugs.debian.org> - 2026-01-13 13:10 +0100

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