APPLIED[P/N]/Cmnt: [PATCH 0/1][SRU][P][Q] Dell AIO backlight is not working, dell_uart_backlight module is missing

[Stefan Bader]

On 10.07.25 16:18, Stefan Bader wrote:
> On 13.06.25 08:06, AceLan Kao wrote:
>> From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>
>>
>> BugLink: https://bugs.launchpad.net/bugs/2083800
>>
>> [Impact]
>> Dell AIO backlight need dell_uart_backlight module, but 
>> CONFIG_DELL_UART_BACKLIGHT is not enabled on 6.8+ kernels.
>>
>> [Fix]
>> Enable the option in the kernel config
>>
>> [Test Case]
>> 1. Boot Dell AIO machine to desktop
>> 2. The backlight should be controlled through hotkey and/or GUI
>>
>> [Where problems could occur]
>> No regression.
>>
>> Chia-Lin Kao (AceLan) (1):
>>    UBUNTU: [Config] enable CONFIG_DELL_UART_BACKLIGHT
>>
>>   debian.master/config/annotations | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
> 
> I took the change of DELL_UART_BACKLIGHT being compiled as a module and 
> applied this to the config files for both Plucky and Noble. This is like 
> it was asked for in the bug report and also (since this was already 
> applied to unstable/questing) we now have this config synced for latest 
> LTS and onward.
> 
> Applied to plucky,noble:linux/master-next. Thanks.

Ok, I should have been more careful. This had been rejected for Noble 
before because it does not compile there. Possibly it was never intended 
for it and only slipped in because the oem kernel got it enabled. And 
the HWE kernel (Plucky) should as well.

If that is not correct you will have to submit again for noble but also 
with supporting patches to allow compiling.

> 
> -Stefan
> 


-- 
- Stefan
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