Intel Skylake Graphics: Windows 10 vs. Ubuntu 16.04 + Latest Open-Source Driver Code

[slacka]

No. It only affect Skylake GPUs, all the other Intel chips run fine.

Yes, I just tested Intel(R) HD Graphics 5500 (Broadwell GT2)
Windows : Ubuntu 16.04 :: 72 fps: 67 fps

I couldn't find any Xonotic performance bugs on the https://bugs.freedesktop.org tracker. Could someone with a Skylake report it?

[hugo8621]

So apart from Xonotic and GPU test, seems like Intel Linux iGPU catched up a lot. I guess this should put it now significantly ahead of Apple's Intel iGPU OpenGL performance...

[Michael]

I can recommend the Dell XPS 13 DE with i7-6560U Iris 540. Being the owner of one, I would be interested too.

Well it's incredibly unlikely enough people will tip/subscribe to see Skylake Iris tests.... From all the AMD windows vs. Linux I don't think I even made an extra $100.

[bug77]

Besides games a usual benchmarks were done, like GPUTest. And since they also show bad results, it is definitely something with GPU driver on GNU/Linux.

GPUTest is weird. fglrx was winning in that benchmark, even when Nvidia's blob was stomping it in every game benchmark.
Either that, or it tests a really special path no other benchmark/game is touching.

[Veto]

I don't have any sky lake iris hardware at all so unfortunately tests are only going to happen with more premium subscribers or tippers.

I can recommend the Dell XPS 13 DE with i7-6560U Iris 540. Being the owner of one, I would be interested too.

[Hi-Angel]

In fairness, if you look at the corresponding AMD and NVidia Windows/Linux tests the pattern here seems to be as much "Linux game ports are slower" as "drivers are slower". There's enough information across those three reviews for some pretty interesting analysis.

Besides games a usual benchmarks were done, like GPUTest. And since they also show bad results, it is definitely something with GPU driver on GNU/Linux.

[rabcor]

Really subpar intel, I am disappoint.

[bug77]

By 'second class' I was referring to the discrepancy between the love they give to the windoze driver, and the apparent lack of love for the Linux driver. As nvidia has proven with their cross platform driver, there is absolutely no reason for Linux to perform worse than windoze.

Well, Nvidia had to sidestep Mesa to provide that level of support. A move they still catch a lot of flak for.

[smitty3268]

Yes, I wonder why Intel struggles here. The AMD numbers are very different.

http://www.phoronix.com/scan.php?page=article&item=amdgpu-win10-fury&num=2

Is this a regression?

No. It only affect Skylake GPUs, all the other Intel chips run fine.

[smitty3268]

Does Intel have both open source and closed source drivers for Linux?

I believe they ported their closed source drivers to Android at one point. I have no idea if they could be run on linux as well, but i don't think they are publicly available for people to try.