Re: Brightness slider gone - Gnome 48

On 9/18/25 12:59, Richard Henschel ([email protected] via 
blfs-support Mailing List) wrote:
> On 9/18/25 12:04, "Cliff mcDiarmid" ([email protected] via 
> blfs-support Mailing List) wrote:
>
>> Hi
>>
>> This is one for the Gnome users.   The brightness slider, at the to 
>> right in
>> Gnome 48, seems to have vanished, or at least it  has for me. I do 
>> have a
>> AMD Ryzen™ 7 4800H with Radeon™ Graphics × 12.   This is probably the 
>> problem
>> and I need some pointers as to what i need to install or not.
>> This might require additional modules I don't know.   I have done 
>> extensive
>> googling and can't find any definitive.
>>
>> Thanks
>> Peculiar.  I also just noticed that I do not have the brightness 
>> slider on BLFS Gnome either.  The two machines I have BLFS on (one is 
>> Intel i7 and only has NVidia 2070 card for graphics, the other AMD 
>> Ryzen 5 laptop with integrated Radeon Rembrandt and discrete NVidia 
>> 2050 card) both show no brightness slider. Ubuntu on the Intel 
>> machine also has no brightness slider, while the Ubuntu AMD machine 
>> does.  Perhaps a configurable item?   I am also curious to know.
>>
>
  I found out that the brightness slider is supposed to show up on 
laptops (with a battery and power management exists) by default. I 
installed v102 of dash-to-dock extension on my laptop and the brightness 
control seemed to magically appear.  Don't know why, but I am certain it 
wasn't there before.  There also appears to be a gnome extension at 
https://extensions.gnome.org/extension/4652/adjust-display-brightness/ 
but I have not tried it.  I have also found information that implies it 
will not show up on machines where the kernel has no way to control your 
monitor brightness.   That is two possible reasons why it doesn't show 
up on my Intel machine.

Hope this helps.

-- 
http://lists.linuxfromscratch.org/sympa/info/blfs-support
Unsubscribe: See the above information page