?intel iris drivers on macbook pro retina 15" 2014

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Level 1

8 points

?intel iris drivers on macbook pro retina 15" 2014

hi all, i need help i'm lost

it's been 3 days trying to install the intel iris graphic card drivers for the iris 5200 that is shipped with nvidia 750m on the macbook pro 15" retina 2014 and i'm not able to install the drivers.

i installed the preview version of win10 and i rolled back to the preview version of 8.1 both 64bit

and there is something weird, because my bootcamp is only able to install a preview windows version, even having a pro version with product key of 8.1, at the end of the installation, windows say that the changes on my computer can't be saved, so no working windows 8.1 pro 👿

as you are aware, bootcamp download the intelLegacyHdGraphics64.exe together with all other drivers like the nvidia one.. but only the iris drivers will be not installed. the error message is always the same: this computer does not meet the minimum requirement for installing the software.

so, i went to intel site and i downloaded all available drivers, the intel SDK for ocl applications... 2014.exe, the "opencl runtime 14.2x64. package.. installed correctly.

what i'm not able to install are all drivers i could find on the site for the iris.

Intel® Download Center

but i'm getting always this message: this computer does not meet the minimum requirement for installing the software.

the nvidia 750 works as expected, and i did try everything to install the iris drivers.

i also tried to uninstal the nvidia drivers also using the device manager, not just simply disabling it.

and after booting again.. the iris is not listed in the device manager, just the microsoft default display. and trying to install the drivers manually failed too, but that was expectable since there is no intel iris menu from which to pick manually the drivers.

if i try to install using the compatibility tool i get the message that the os is not supported 👿

I'm lost lost lost

did someone try to install them? maybe had luck under a win7? or it is a lost war?

MacBook Pro with Retina display, OS X Mavericks (10.9.2), right display setting?

Posted on Jan 9, 2015 1:06 AM

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Answer 1

Loner T

Level 9

59,536 points

Jan 9, 2015 5:09 AM in response to patroo

Windows does not handle dual-GPU machines. Windows installations will use the nVidia GPU only. There is no benefit in installing the Iris GPU drivers. In the MBR-based installation of Windows, CSM-BIOS layer will hide Iris GPUs. This is a Windows-specific issue, not a hardware problem. In some cases, this can also lead to BCD corruption and BSODs.

Please check Device Manager -> Display Adapters.

On a single-GPU Iris machine, BC will properly use the Iris card.

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Answer 2

patroo Author

Level 1

8 points

Jan 9, 2015 5:51 AM in response to Loner T

HI thanks for answer

i'm not trying to run both gpu cards like it is possible on osx

i want to disable the nvdia card and use the iris one, why?

i use rendering software which are based on opencl. Opencl support for nvidia is bad but that is expectable since they focus on their cuda

I Want to use luxrender and luxmark on windows too

the benchmark score of the iris 5200 in osx mode is 4880 while the score of the nvidia is 900/1100

that is a huge difference in speed

Edited: on my acer running win7, i disabled the intel graphic card for the sake of Nvidia 330m from bios, and it works

this should be possible in win 8.1 too? as i know those setting aren't anymore available as bios mode.

is there a way to unhide the iris 5200 and permanently disabling the nvidia 750 in windows?

btw maybe you can answer to this. Running luxmark in yosemite, when i benchmark using cpu, iris, or cpu+ iris the fun becomes noisy as it should, but if i benchmark just the nvidia card the fun doesn't start. and this should be not normal at all.

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Answer 3

Loner T

Level 9

59,536 points

Jan 9, 2015 6:25 AM in response to patroo

patroo wrote:

I Want to use luxrender and luxmark on windows too

the benchmark score of the iris 5200 in osx mode is 4880 while the score of the nvidia is 900/1100

that is a huge difference in speed

I am unable to search http://www.luxrender.net/luxmark/ for benchmark data. Is there another way to get to these numbers? If you use the nVidia that is currently exposed to windows, do you run into any issues for Rendering?

Edited: on my acer running win7, i disabled the intel graphic card for the sake of Nvidia 330m from bios, and it works

this should be possible in win 8.1 too? as i know those setting aren't anymore available as bios mode.

is there a way to unhide the iris 5200 and permanently disabling the nvidia 750 in windows?

You may want to start by looking http://forums.macrumors.com/showthread.php?t=1658931.

btw maybe you can answer to this. Running luxmark in yosemite, when i benchmark using cpu, iris, or cpu+ iris the fun becomes noisy as it should, but if i benchmark just the nvidia card the fun doesn't start. and this should be not normal at all.

This seems to be normal behavior from my experience. The integrated GPU (CPU+Iris) produces much more heat than the discrete nVidia. If you do not have a case on your MBP, put your palm on the bottom panel, and run both tests. You can also use something like iStat to look at the temperatures of various components while running tests.

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Answer 4

patroo Author

Level 1

8 points

Jan 9, 2015 7:20 AM in response to Loner T

i will look into the link you point me. thanks

about luxrender and luxmark

http://www.luxrender.net/en_GB/standalone

the v3 luxmark version can be found here:

http://www.luxrender.net/forum/viewtopic.php?f=34&t=11426

see second post from jensverwiebe the dev that makes the package available for osx

for luxmark v2

http://www.luxrender.net/forum/viewtopic.php?f=34&t=7769

for the download go here

http://www.luxrender.net/wiki/LuxMark#Download

benchmark site http://www.luxrender.net/luxmark/

btw: as i know, luxmark was adopted from apple to benchmark the opencl drivers or whatever..

when i'm on windows or yosemite, i do not have any issue rendering with the nvidia 750, the only thing is that in opencl the nvidia is 4 times slower.

running the hdr luxball scene.

you can check on your own. and besides mac is still on opencl 1.2

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