Free and open-source graphics device driver: Difference between revisions

Revision as of 12:27, 8 April 2024

Revision as of 08:50, 19 April 2024

Line 122:

=== Intel ===

{{See also|List of Intel graphics processing units|Intel GMA#Linux|Intel HDGraphics and Iris GraphicsTechnology}}

[[Intel]] has a history of producing (or commissioning) open-source drivers for its graphics chips, with the exception of their [[Intel GMA#PowerVR GPU based|PowerVR-based]] chips.<ref name="ubuntugamer">[https://web.archive.org/web/20110113115606/http://www.ubuntugamer.com/2011/01/ubuntu-graphics-driver-overview/ An overview of graphic card manufacturers and how well they work with Ubuntu] Ubuntu Gamer, January 10, 2011 (Article by Luke Benstead); ([http://xtrabuntu.blogspot.com/2011/02/overview-of-graphic-card-manufacturers.html copy of the article])</ref> Their 2D X.Org driver is called xf86-video-intel. The kernel mode-setting driver in the Linux kernel does not use the [[Videovideo BIOS]] for switching [[display resolution|video modes]]; since some BIOSes have a limited range of modes, this provides more reliable access to those supported by Intel video adapters.

The company worked on optimizing their free [[Linux]] drivers for performance approaching their [[Microsoft Windows|Windows]] counterparts, especially on [[Sandy Bridge]] and newer hardware where performance optimizations have allowed the Intel driver to outperform their proprietary Windows drivers in certain tasks, in 2011.<ref>{{cite web

Line 152:

}}</ref>

Support for Intel's LLC (Last Level Cache, L4-Cache, [[Crystalwell]] and Iris Pro) was added in Linux kernel 3.12,.<ref>{{cite web |title=drm/i915: Use eLLC/LLC by default when available |url=https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4d15c145a6234d999c0452eec0d275c1fbf0688c}}</ref><ref>{{cite web |title=drm/i915: Use Write-Through cacheing for the display plane on Iris |url=https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=651d794fae9b79237aae1c97f8a9d9f3817bd31d}}</ref> andIn 2013, the company hashad 20 to 30 full-time Linux graphics developers.<ref>{{cite web |url=https://www.phoronix.com/scan.php?page=news_item&px=MTI5MTI |title=Intel Has 20~30 Full-Time Linux Graphics Developers |date=2013-02-02}}</ref>

=== Matrox ===