Here is the result of the ls command : ls -alR /lib/modules/$(uname -r)/ | grep dell -rw-r--r-- 1 root root 69057 juin 3 12:09 dell-smm-hwmon.ko drwxr-xr-x 3 root root 4096 juin 28 18:25 dell /lib/modules/6.5.0-41-generic/kernel/drivers/platform/x86/dell: -rw-r--r-- 1 root root 95489 juin 3 12:09 dell-laptop.ko -rw-r--r-- 1 root root 25689 juin 3 12:09 dell-rbtn.ko -rw-r--r-- 1 root root 35209 juin 3 12:09 dell_rbu.ko -rw-r--r-- 1 root root 61593 juin 3 12:09 dell-smbios.ko -rw-r--r-- 1 root root 18321 juin 3 12:09 dell-smo8800.ko -rw-r--r-- 1 root root 35257 juin 3 12:09 dell-uart-backlight.ko -rw-r--r-- 1 root root 14153 juin 3 12:09 dell-wmi-aio.ko -rw-r--r-- 1 root root 35273 juin 3 12:09 dell-wmi-ddv.ko -rw-r--r-- 1 root root 18513 juin 3 12:09 dell-wmi-descriptor.ko -rw-r--r-- 1 root root 45209 juin 3 12:09 dell-wmi.ko -rw-r--r-- 1 root root 11089 juin 3 12:09 dell-wmi-led.ko drwxr-xr-x 2 root root 4096 juin 28 18:25 dell-wmi-sysman /lib/modules/6.5.0-41-generic/kernel/drivers/platform/x86/dell/dell-wmi-sysman: -rw-r--r-- 1 root root 97001 juin 3 12:09 dell-wmi-sysman.ko
and directory /sys/class/backlight/ is empty. All of that, using 6.5.0-41. If i use 5.15 kernel, class/backlight folder is not empty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2067498 Title: Can't control display backlight in 24.04 on Dell AIO system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2067498/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
