brightness control

[acornejo]

a big factor in power consumption, especially in laptops, is screen brightness.

it would be fairly easy to add this feature to TLP, so that the user can specify default values for brightness when in AC/battery and have TLP apply them when appropriate. I would be happy to contribute a pull-request with this feature if there are changes of having it included in TLP.

Thoughts?

[FadeMind]

In KDE Plasma this is controled via plasma-workspace and powerdevil package and settings are stored in powermanagementprofilesrc file, so this feautre is manage via current used DE.

[acornejo]

@FadeMind, but in gnome shell or i3 this is not available.

[linrunner]

Hi,

such a feature would inevitably conflict with several desktop environments implementing (incomplete and buggy) their own kind of brightness control – including gnome shell (Power --> Screen brightness; Dim screen when inactive).

From a user's perspective it would always be TLP that "doesn't work" leading to many support questions or issues. As an additional complication these issues would be difficult to explain and/or solve.

Conclusion: no, thanks.

Therefore I decided long ago not to have brightness control in TLP --> see FAQ.

[acornejo]

I think these concerns would be addressed by having this feature disabled by default, so users have to opt in and read a comment before enabling it; but I understand and respect your decision.

FWIW this feature has been removed from the latest gnome (I don't know why, it used to work rather well), but it is certainly available in other DE or other gnome versions.

[linrunner]

Reopened to show up on the issues page :-)

[linrunner]

@acornejo: no way.