1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

VIA Kernel Mode-Setting Almost Handles LVDS

VIA

Published on 12 July 2011 10:00 PM EDT
Written by Michael Larabel in VIA
3 Comments

While the Intel, Radeon, and Nouveau DRM drivers are now mature with kernel mode-setting -- and the Intel Poulsbo KMS driver is even getting ready to leave the staging area -- there's still one fairly common name missing from the desktop Linux KMS scene: VIA Technologies. While VIA defenestrated their open-source efforts and completely blew their TODO list, James Simmons, an independent developer, has basically been the community VIA development source.

There's been some work by the OLPC engineers on a new VIA UMS driver and some dabbling by the OpenChrome developers on their own X.Org driver, among a couple of other individuals, but James Simmons has been effectively the only one working on kernel mode-setting support for the VIA DRM.

He's been making some nice progress on the VIA KMS support and it's nearly done after starting work on it more than six months ago. Today he's written a new status update to the OpenChrome mailing list.

In today's message, James says that he has expanded the VGA/analog support for the VIA CX700M hardware with dual VGA outputs, fixed a kernel module issue, and now has LVDS being detected and nearly functioning. The LVDS display is still blank, but it's nearly working. Simmons has also begun on basic PCI Express TTM handling code, but neither that, nor the LVDS code has yet been committed to his VIA DRM kernel repository.

After the LVDS is working and other code fixed up, James still has to make the OpenChrome DDX driver play with the KMS driver so that it respects the mode-setting being done within the kernel when running an X.Org Server. Needless to say, the VIA kernel mode-setting code still will not be ready for the mainline Linux 3.1 kernel.

It's nice to see though that James is still committed to the VIA kernel mode-setting support upbringing. James was the developer who last year wrote the 3Dfx Linux kernel mode-setting driver, but it was never merged into the mainline tree.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. CompuLab Intense-PC2: An Excellent, Fanless, Mini PC Powered By Intel's i7 Haswell
  2. From The Atom 330 To Haswell ULT: Intel Linux Performance Benchmarks
  3. AMD Radeon R9 285 Tonga Performance On Linux
  4. Apotop Wi-Copy
Latest Linux Articles
  1. AMD Moves Forward With Unified Linux Driver Strategy, New Kernel Driver
  2. MSI: Update Your BIOS From The Linux Desktop
  3. NVIDIA vs. AMD 2D Linux Drivers: Catalyst Is Getting Quite Good At 2D
  4. 15-Way GPU Comparison With Mesa 10.3 + Linux 3.17
Latest Linux News
  1. Linux 3.18-rc1 Released One Week Early With Many Changes
  2. The VC4 Gallium3D Driver Is Still Moving Along For The Raspberry Pi
  3. Direct3D 9 Support Might Land Within Mainline Mesa 3D Drivers
  4. OpenGL Preview Benchmarks For NVIDIA's GeForce GTX 970
  5. HOPE: The Ease Of Python With The Speed Of C++
  6. Vitesse: Using LLVM To Speed Up Databases
  7. AMD Is Restructuring Again, Losing 7% Of Employees
  8. Linux Testing Of The NVIDIA GeForce GTX 970
  9. Qt 5.4 Now In Beta With Web, Bluetooth LE, Graphics Improvements
  10. AMD's Radeon R9 285 On Linux Offers Good OpenCL Performance
Latest Forum Discussions
  1. AMD Is Restructuring Again, Losing 7% Of Employees
  2. Bye bye BSD, Hello Linux: A Sys Admin's Story
  3. NVIDIA Presents Its Driver Plans To Support Mir/Wayland & KMS On Linux
  4. Open-Source AMD Fusion E-350 Support Takes A Dive
  5. Upgrade to Kaveri, very slow VDPAU performance
  6. ChromeOS Drops Support For EXT2/EXT3/EXT4 File-Systems
  7. Lennart Poettering On The Open-Source Community: A Sick Place To Be In
  8. The Slides Announcing The New "AMDGPU" Kernel Driver