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Precise vBlank Timing Comes For Nouveau NV50

Written by Michael Larabel in Nouveau on 12 August 2013 at 10:33 AM EDT. 2 Comments

Precise vBlank timing support has been patched for the Nouveau DRM driver to support the NV50 through NVC0 NVIDIA GPUs (up to and through Fermi but not yet any NVD0 or Kepler hardware).

This support was written by Canonical's Maarten Lankhorst and has now surfaced on the dri-devel mailing list. This is a potential candidate for merging into the Linux 3.12 kernel.

For details on precise vBlank timestamps for Linux along with background information as to why this is important, see the earlier Phoronix article on Intel, Radeon DRM Get Precise VBlank Timestamps.

2 Comments

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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 20,000 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, LinkedIn, or contacted via MichaelLarabel.com.