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Display Drivers

Radeon Gardenshed DRM + Gallium3D Benchmarks

It has been about a month since we last delivered ATI/AMD Radeon Linux benchmarks comparing the performance of the open-source driver against the high-performance proprietary driver. Since that point there's been various improvements to the Mesa/Gallium3D driver and there's also been the merge of the latest Radeon DRM code for the next kernel, which will likely be called the Linux 3.0 kernel, but in the DRM pull request was referred to as Gardenshed. Here are these benchmarks on several different Radeon graphics cards.
27 May 2011 - 34 Comments

A Historical Look At Intel Ironlake Graphics Performance

For the past five months when mentioning Intel graphics at Phoronix, it's been pretty much about their latest-generation Sandy Bridge hardware and most recently about their next-generation Ivy Bridge. The talk has either been about new hardware enablement, performance improvements, or bad regressions. In this article, we are going a generation back to look at how the Clarkdale/Arrandale-Ironlake graphics performance has evolved under Linux over the course of Ubuntu releases.
25 May 2011 - 3 Comments

Intel SNB Linux Driver Can Out Run Windows Driver

While last week we reported Intel Sandy Bridge graphics support is still troubling in Ubuntu 11.04 and also the support broke at the last minute in Linux 2.6.39, there's really good news to report this week from the Sandy Bridge Linux land. When using the very latest working Linux driver code, in many cases the OpenGL performance of this open-source driver stack is now faster than Intel's official Windows 7 driver.
23 May 2011 - 17 Comments

Open-Source AMD Fusion Driver Stabilizes

With the very latest open-source Linux driver code for the AMD Fusion E-350, the support is finally stable and comparable to that of other recent Radeon HD graphics processors with the open-source driver stack.
19 May 2011 - 32 Comments

Whoops, Intel SNB Is Borked At The Last Minute In Linux 2.6.39

This morning after writing Intel Sandy Bridge On Ubuntu 11.04 Is Still Troubling, I proceeded to build the latest Mesa / Linux kernel / libdrm / DDX Git stack to see where the latest Intel SNB code is at and how it's running for the popular Core i5 2500K processor. Before leaving three weeks ago, everything was running great, but to much surprise, this morning it was a broken mess. Intel just regressed hard in their Sandy Bridge support for the about-to-be-released Linux 2.6.39 kernel. Whoops!
18 May 2011 - 15 Comments

Intel Sandy Bridge On Ubuntu 11.04 Is Still Troubling

When Intel released their "Sandy Bridge" processors in early January with next-generation graphics, the Linux support was widely criticized as although they had been working on the open-source Linux driver for nearly one year at that time, it wasn't a pleasurable "out of the box" experience and building open-source graphics drivers on Linux can be a real pain. With Ubuntu 11.04, which was released at the end of April, this "Natty Narwhal" release still largely misses the Sandy Bridge support train.
18 May 2011 - 3 Comments

A Look At Nouveau Driver Power Usage

There's been many individuals asking how the work is going in tracking down the major Linux kernel power regression I brought to light late last month (actually, there's at least two power regressions in the kernel). Not much progress has been made since then as I've been out of the office (and country) so I've been preoccupied with other matters, but I do happen to have another power test today to satisfy other reader requests.
11 May 2011 - 8 Comments

May 2011: Gallium3D vs. Classic Mesa vs. Catalyst

The open-source graphics driver landscape is ever changing with new work going into Mesa / Gallium3D near daily. While many improvements have been made in recent time, the open-source drivers have a ways to go in competing with the proprietary competition. Even the open-source AMD driver, which is developed using documentation from AMD as well as code and engineering resources within the company, it has a tough time competing with the well-optimized Catalyst driver. Fortunately, the AMD driver is now largely centered on the two Gallium3D drivers: R300g and R600g, and have pushed away their classic Mesa DRI drivers into maintenance mode. The R300g supports the R300 through R500 ASICs (up through the Radeon X1000 series) while the R600g driver supports all ATI/AMD hardware past that point up through the latest Radeon HD 6000 series and Fusion. In this article, we are seeing where the performance is currently at for the classic Mesa, Gallium3D, and Catalyst drivers under Linux.
4 May 2011 - 31 Comments

Open-Source AMD Fusion Graphics Still Mixed

While AMD was very fast to provide open-source Fusion graphics driver support under Linux (along with official support in their proprietary Catalyst driver), the support has not ended up working out too well for us. It has regressed since the November push. As mentioned in March, the E-350 Fusion Linux support took a dive in terms of its graphics support with some outstanding bugs. Since then, the support has improved and is now largely usable, but there are still some big issues.
29 April 2011 - 16 Comments

Test Driving The QEMU-KVM KMS Driver

Just hours ago a new Linux KMS driver entered the world for the Cirrus GPU. Yes, as in that from Cirrus Logic for an ancient CL-GD5446 ASIC, this was a 2D-only 64-bit VisualMedia accelerator. But, fortunately, it is not for the actual hardware itself but rather the virtual incarnation that is emulated by QEMU and QEMU-KVM. Those running a Linux KVM virtualization stack with QEMU and the Cirrus adapter can now benefit from a kernel mode-setting driver.
19 April 2011 - 3 Comments

660 display drivers articles published on Phoronix.
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