Some Things about OSX 10.11

Metal is available on compatible nvidia devices (not checked ati yet) with both osx driver and official webdriver.

But metal is still not used to render GUI on nvidia (it’s used only on intel igpus).

And as I mentioned previously, final webdriver brings metal support to Maxwell, now just to find what it can be used for.

OSX 10.11 DP5 disables rootless=0 option

Since osx 10.11 dp5 (15A235d) it’s now not possible to disable rootless security by using boot argument rootless=0.

you now have to boot into osx recovery and disable system integrity protection from security settings there.

Is Metal used by OSX 10.11 for rendering?

In short, looks like OSX 10.11 doesn’t use Metal to render anything.


Update: Metal seems to be used for gui on Intel graphics.

Metal supported GPU

This info comes from metal driver availability, not from real test

Metal supported card families:

Nvidia – GeForce gtx 4xx and newer
Intel – HD4000 and newer (ivy bridge and newer)
AMD – HD7000 and newer

Some apps to test metal support -=

MetalInfo to show some (very minimal) device Information and MetalTest – simple 3d box rendered with Metal

Example of MetalInfo output:

Metal Device Name: NVIDIA GeForce GTX 670
Lower Power Device: No
Headless Device: Yes

We have eGPU subform openned

Btw, we have eGPU subform now at to tell more about using eGPU in OS X via ThunderBolt

Join us.

egpu mini

El Capitan Obvio

Collecting some information in this post:

iMac (Mid 2007 or newer) • MacBook Air (Late 2008 or newer) • MacBook (Late 2008 Aluminum, or Early 2009 or newer) • Mac mini (Early 2009 or newer) • MacBook Pro (Mid/Late 2007 or newer) • Mac Pro (Early 2008 or newer) • Xserve (Early 2009)

kext-dev-mode still works

Nvidia driver is….. still 310.42.05a43 , no love for maxwell

New root-less security is based on sandboxing shell and its commands, so you can’t edit system files even if you a root and file has 755 mode

files are editable if you boot yosemite

To disable rootless mode set boot argument rootless=0

You can still set boot-args with sudo nvram even in rootless mode.

No Metal for pre-Fermi nvidia cards

OpenGL still at level 4.1

What’s inside new rMBP ?

Found a screenshot of new rMBP with amd card inside:

Device-id is 6821, looking at it’s closest brother 6820 –

It’s mobile variant of cape verde chip that’s found in radeon hd 7770.
640 shaders, 16 ROPs, 40 TMUs, 128-bit bus.

And, just x8 pcie ?

Well, x8 pcie 3.0 would be equal to x16 pcie 2.0, but why?

The cpu has total of 16 pcie 3.0 lanes, x8 to gpu, two of x4 to TB controllers?

gtx 750ti is much faster than hd7770, cosuming less power, if only apple would include gm107 into new rmbps…

10.10.3 brings better support for 5k

Before 10.10.3, to get 5k dell display to work one needed to have nvidia videocard with two display-port outputs, special boot option and powercycling of display after bootup was needed.

since 10.10.3 there is no more need for last step (powercycling display). Your 5k display will boot straight into 5k desktop.

10.10.3 brings 5k support to 2013 MacPro, there is no bootscreen tho. No special bootoptions needed, just plug and play, just no bootscreen.

As for nvidia, you can have bootscreen there, mac edition of gtx9x0 needed (or titan x, gta v is coming).

Dell 5k’s display have two inputs, one is single DP link for 4k output, another one is double DP link for 5k. Connect all three into card, you will have bootscreen in 4k and desktop in 5k.

GTX TITAN X already works in osx

Great new from our friends in California..
GTX Titan X videocard already works in osx, just install web driver from nvidia.

Screenshots of profiler and cuda-z

More here

5k screen on mac pro and hack

Great news from barefeats :

dell 5k screen, gtx980 and next boot args:

nv_spanmodepolicy=1 nvda_drv=1


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