Interlaced Support For Intel's Linux Graphics Driver
Written by Michael Larabel in Intel on 27 January 2012 at 01:51 AM EST. Add A Comment
Daniel Vetter of Intel has published a new patch-set to enable interlaced support within their DRM kernel driver.

Interlaced support is relevant if you have an analog TV where using the interlaced mode can reduce flicker and enhance motion perception by only refreshing half the screen at a time (every other line), but if you're not using an interlaced TV mode, this patch-set is not important.

Vetter's patches allow interlaced mode support on SDVO and HDMI outputs with the Intel driver and fix the interlacing for the Intel Ironlake-generation graphics hardware and newer.

From his announcement, "I've had tons of fun reading through docs and code to get to the bottom of who interlaced is supposed to work."

The patches can be found in this Git repository, but assuming they work as expected, they will likely be queued up for the Linux 3.4 kernel in a few months.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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