Intel Linux Driver Gets Support For New Haswell IDs
Written by Michael Larabel in Intel on 27 April 2013 at 09:21 AM EDT. Add A Comment
Support for the "reserved" Haswell PCI IDs were added to the Intel Linux graphics driver.

While the open-source Intel Linux graphics driver already has support for at least 36 variants of Intel's forthcoming Haswell processors with faster integrated graphics, it turns out some were missing. The reserved PCI IDs weren't added and it turns out that some products are actually going to be using the IDs.

On a Haswell-based Intel Core i5-4258U processor it was discovered that the graphics weren't working on the latest Linux 3.9 kernel due to using one of these extra IDs, per this bug report. There's now a new driver commit by Intel's Chris Wilson to add in the reserved IDs for Haswell GT1, GT2, GT2+ parts.

Overall, if using the latest code on distributions like the brand new Ubuntu 13.04, the Intel Haswell Linux graphics support appears like it should be in good shape. However, there's been support for features like HiZ and other Mesa/DRM improvements that didn't land for Ubuntu 13.04 and other early Q2'2013 distributions, which means some stable customers may be waiting until H2 until seeing updates pushed into their next distribution releases. When Haswell officially launches we will have extensive Linux performance benchmarks at Phoronix.
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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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