Testing 65 Different GPUs On Linux With Open Source Drivers

An anonymous reader writes "How good are open source graphics drivers in 2014 given all the Linux gaming and desktop attention? Phoronix has tested 65 different GPUs using the latest open source drivers covering Intel HD Graphics, NVIDIA GeForce, AMD Radeon, and AMD FirePro hardware. Of the 65 GPUs tested, only 50 of them had good enough open source driver support for running OpenGL games and benchmarks. Across the NVIDIA and AMD hardware were several pages of caveats with different driver issues encountered on Linux 3.15 and Mesa 10.3 loaded on Ubuntu 14.04. Intel graphics on Linux were reliable but slow while AMD's open-source Linux support was recommended over the NVIDIA support that doesn't currently allow for suitable graphics card re-clocking. Similar tests are now being done with the proprietary Linux drivers."

Comments

Thankful for the FOSS drivers on older hardware

[phorm]

I recently updated my Mint install and discovered that the newer AMD/FGLRX drivers have a big issue with the backlight on various laptops (mainly, that they turn it off or down to zero).
At first I thought I had no display, but later noticed that if there is some front-light I could vaguely see the login window.

As it's an older model, it seems to get less attention from AMD (Nvidia is much the same). However, I was happy to see how much better the FOSS driver seems to work these days, so for now I'm back to using that. Backlight works, and video seems reasonably fast. I haven't tried any 3d/gaming yet but it will be interesting to see how that stacks up.

Re:Thankful for the FOSS drivers on older hardware

[jones_supa]

My experience is that the open source Radeon driver has been getting much better in 3D performance lately.

Yes it does

[Sycraft-fu]

Their interface is stable per version of Windows. They freeze the ABI and it is set until the next one. They don't change it much usually anyhow, Vista being a notable exception. Now of course when new DX features come out you have to update your drivers to support it if you want those features, but it isn't necessary to make your driver work, the old driver continues to work.

It does not get updated with every kernel patch, ala Linux.

Re:AMD Open Source

[Kjella]

Windows does not have a stable driver interface. What windows does have is the market share necessary to not suffer too much when the interface changes.

In recent history there was WDDM 1.0 (Vista, 2006) 1.1 (Win7, 2009) 1.2 (Win8, 2012) and 1.3 (Win8.1, 2013) and as far as I can tell they're backwards compatible - if your graphics card has a WDDM 1.0 driver you can still run Win8.1, however it'll also cap your DirectX level. Unless I'm mistaken that's 8 years of a stable (but expanding) ABI, it seems like DirectX 12 will require WDDM 2.0 which may be the next clean break but we won't know until Win9 is out. But I agree that the market share helps Microsoft a lot, particularly the market share of gamers despite Steam now being on Linux - according to their May 2014 survey 95.5% run Steam on Windows. Also for all those pointing to Distrowatch, at least 0.64% of the 1.10% running Linux use Ubuntu with only 0.08% verified as Mint...