Language Selection

English French German Italian Portuguese Spanish

Linux backlight control

Filed under
Linux
Hardware
Software

Backlight control is one of those things that you'd think would be simple, but ha ha this is computing so of course it's an utter disaster and everything is a huge mess. There's three main classes of backlight control in the x86 world, all of which have drawbacks:

* ACPI specifies a mechanism for backlight control, and the majority of modern machines implement it. It has the advantage that the brightness query interface is generally aware of anything else in the system which may have changed the brightness, so it's unlikely to get out of sync with reality if the platform tries to do something odd like change the backlight itself in response to an ambient light sensor or some other event. The main drawback is that there's typically a fairly small number of available backlight values, usually somewhere between 8 and 20.

* A platform-specific mechanism.

rest here




More in Tux Machines

This Custom Android-x86 Build Puts Android 7.1.1 on Your PC, with Linux 4.11 RC7

GNU/Linux developer Arne Exton was happy to announce the release of a new build of his custom built Android-x86 project that lets uses runs the latest Android mobile operating system on their personal computers. Read more

Clear Linux Announces Intel Clear Containers 2.1.6 with Docker 17.04.0 Support

Clear Linux's Kent Helm was proud to announce the release and general availability of Intel Clear Containers 2.1.6, a maintenace update that promises to improve compatibility with recent Docker releases, but also adds various bug fixes. Read more

Nantes Métropole releases open source tool for LibreOffice transition

The French city of Nantes (Nantes Métropole) has released an open source tool used to schedule its migration to LibreOffice. The shift from commercial software to the free and open source LibreOffice productivity suite started in 2013 and is intended to save the administration EUR 260 000 per year. The transition was finalised in April 2016. Read more

Today in Techrights