Linux backlight control
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.
- Login or register to post comments
- Printer-friendly version
- 4956 reads
- PDF version
More in Tux Machines
- Highlights
- Front Page
- Latest Headlines
- Archive
- Recent comments
- All-Time Popular Stories
- Hot Topics
- New Members
digiKam 7.7.0 is releasedAfter three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. |
Dilution and Misuse of the "Linux" Brand
|
Samsung, Red Hat to Work on Linux Drivers for Future TechThe metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. |
today's howtos
|
Recent comments
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago
1 year 11 weeks ago