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#1 2019-11-24 02:01:46

Lemniskett
Member
Registered: 2019-10-28
Posts: 6

Brightness control doesn't work with Deepin DE

Hi, so... i just installed Deepin DE with :

sudo pacman -S deepin

and when i log in with Deepin DE, brightness control doesn't seem to work correctly.
When i decrease the brightness, instead of actually dimming the screen, it's just creating a black overlay. When the brightness level is minimum, the screen goes black but it's still has maximum brightness. This doesn't happen in GNOME, Budgie, or Cinnamon.



What should i do?

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#2 2019-11-24 13:38:40

philo
Member
From: indoors
Registered: 2015-01-26
Posts: 84

Re: Brightness control doesn't work with Deepin DE

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#3 2019-11-26 09:58:08

Lemniskett
Member
Registered: 2019-10-28
Posts: 6

Re: Brightness control doesn't work with Deepin DE

philo wrote:

Yeah, controlling brightness with it does works, but is there any way for Deepin to control the actual brightness?

Last edited by Lemniskett (2019-11-26 09:58:25)

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#4 2019-11-26 11:20:56

philo
Member
From: indoors
Registered: 2015-01-26
Posts: 84

Re: Brightness control doesn't work with Deepin DE

You may find useful ideas  here:

https://wiki.archlinux.org/index.php/Backlight

What about Deepin > settings > control center?

Last edited by philo (2019-11-26 11:31:43)

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#5 2019-11-27 12:05:26

philo
Member
From: indoors
Registered: 2015-01-26
Posts: 84

Re: Brightness control doesn't work with Deepin DE

To work, Light now requires user to be part of 'video' group. Is that done?

https://git.archlinux.org/svntogit/comm … ages/light

Last edited by philo (2019-11-27 16:14:28)

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#6 2019-11-27 13:34:04

Lemniskett
Member
Registered: 2019-10-28
Posts: 6

Re: Brightness control doesn't work with Deepin DE

philo wrote:

What about Deepin > settings > control center?

It doesn't work, it created a black overlay instead of dimming the screen.

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#7 2019-11-27 20:18:45

philo
Member
From: indoors
Registered: 2015-01-26
Posts: 84

Re: Brightness control doesn't work with Deepin DE

What is your computer?

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#8 2019-11-28 00:28:55

Lemniskett
Member
Registered: 2019-10-28
Posts: 6

Re: Brightness control doesn't work with Deepin DE

philo wrote:

What is your computer?

HP laptop 14s-dk0024AU

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#9 2019-11-28 19:47:25

philo
Member
From: indoors
Registered: 2015-01-26
Posts: 84

Re: Brightness control doesn't work with Deepin DE

brightnessctl, which is now in the Community official repo,  is probably the softawre used by deepin. Download and install that package on its own and see if it helps.

https://www.archlinux.org/packages/comm … htnessctl/

FWIW

Last edited by philo (2019-11-28 19:55:44)

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#10 2019-11-28 23:05:33

Lemniskett
Member
Registered: 2019-10-28
Posts: 6

Re: Brightness control doesn't work with Deepin DE

philo wrote:

brightnessctl, which is now in the Community official repo,  is probably the softawre used by deepin. Download and install that package on its own and see if it helps.

https://www.archlinux.org/packages/comm … htnessctl/

FWIW

It's still doesn't work. Oh well, guess i'll keep using alternative way to change brightness for now.
I'm using Deepin keyboard shortcuts to replace the brightness function keys.

F2 (reduce brightness) :

light -U 5

F3 (increase brightness) :

light -A 5

the only issue i had is controlling the brightness from Deepin Control Center doesn't work

Last edited by Lemniskett (2019-11-28 23:08:02)

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