I think the problem may be the combination of Intel GPU, source packages 'linux' & 'linux-oem-6.5', kernel series 6.5.0, and kernel module:
Code:
/lib/modules/6.5.0-14-generic/kernel/drivers/platform/x86/dell/dell-uart-backlight.ko
I have that same combination of hardware, although mine is a Gigabyte board. (Not Dell)
Code:
mafoelffen@Mikes-B460M:~$ sudo dmidecode -t 1
# dmidecode 3.3
Getting SMBIOS data from sysfs.
SMBIOS 3.2.0 present.
Handle 0x0001, DMI type 1, 27 bytes
System Information
Manufacturer: Gigabyte Technology Co., Ltd.
Product Name: B460M DS3H AC-Y1
Version: Default string
Serial Number: Default string
UUID: 03c00218-044d-053f-4d06-d50700080009
Wake-up Type: Power Switch
SKU Number: Default string
Family: B460 MB
And in the doc's, yes, it has underscores between the words, but on the machine, in the filesystem, it has hyphons between the word in the module name. I don't know why.
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