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Old 03-12-11, 08:24 PM   #133
Licaon
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Default Re: Optimus support for Linux

Quote:
Originally Posted by amartin83 View Post
Well, this my be only my personal satisfaction, but after nvidia pis..ed on me by not supporting Optimus on Linux, they lost maby...
So you advised Linux desktop users to buy AMD cards because nVidia did not support, nor claimed they supported, Optimus on Linux ?

Why do you hate others so much that you make them suffer by the hand of fglrx?

And how can you give hardware advice to others if you don't even research YOUR own hardware purchases ?
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Old 03-31-11, 01:38 PM   #134
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Default Re: Optimus support for Linux

useful links

http://linux-hybrid-graphics.blogspot.com/
http://ubuntuforums.org/showthread.php?t=1712278
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Old 04-10-11, 06:19 AM   #135
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Default Re: Optimus support for Linux

I bought Asus 1215N netbook only because I need nice mobile Linux computer for my work.
As NVidia won't support Linux on "Optimus"-enabled hardware, it is simpy crap. I could buy same Intel-netbook 1.5 times less price. You can put your ION2 into any hole inside your bodies by choice.

BTW, I will not buy nvidia solutions never later and will not recommend such devices to anyone.
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Old 04-10-11, 06:22 AM   #136
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Default Re: Optimus support for Linux

Quote:
Originally Posted by andrej7 View Post
"these chipsets won't work at all" or just "switching won't work".


Asus 1215N, Slackware-13.1 32-bit, self-made 2.6.38.2 Linux kernel.
lspci sees all 2 video devices.
during kernel boot:
vgaarb: device added: PCI:0000:00:02.0,decodes=io+mem,owns=io+mem,locks= none
vgaarb: device added: PCI:0000:04:00.0,decodes=io+mem,owns=none,locks=no ne
vgaarb: loaded
during NVidia module probe:
nvidia: module license 'NVIDIA' taints kernel.
Disabling lock debugging due to kernel taint
nvidia 0000:04:00.0: power state changed by ACPI to D0
nvidia 0000:04:00.0: power state changed by ACPI to D0
nvidia 0000:04:00.0: enabling device (0000 -> 0003)
nvidia 0000:04:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
nvidia 0000:04:00.0: setting latency timer to 64
vgaarb: device changed decodes: PCI:0000:04:00.0,olddecodes=io+mem,decodes=nonew ns=none
NVRM: loading NVIDIA UNIX x86 Kernel Module 260.19.44 Sun Feb 27 21:30:31 PST 2011
ioremap error for 0xaf660000-0xaf661000, requested 0x10, got 0x0
during X.Org start:
(WW) VGA arbiter: cannot open kernel arbiter, no multi-card support
(**) NVIDIA(0): Depth 16, (--) framebuffer bpp 16
(==) NVIDIA(0): RGB weight 565
(==) NVIDIA(0): Default visual is TrueColor
(==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
(**) Apr 09 18:38:17 NVIDIA(0): Enabling RENDER acceleration
(II) Apr 09 18:38:17 NVIDIA(0): Support for GLX with the Damage and Composite X extensions is
(II) Apr 09 18:38:17 NVIDIA(0): enabled.
(II) Apr 09 18:38:18 NVIDIA(0): NVIDIA GPU ION (GT218) at PCI:4:0:0 (GPU-0)
(--) Apr 09 18:38:18 NVIDIA(0): Memory: 524288 kBytes
(--) Apr 09 18:38:18 NVIDIA(0): VideoBIOS: 70.18.82.00.0b
(II) Apr 09 18:38:18 NVIDIA(0): Detected PCI Express Link width: 1X
(--) Apr 09 18:38:18 NVIDIA(0): Interlaced video modes are supported on this GPU
(--) Apr 09 18:38:18 NVIDIA(0): Connected display device(s) on ION at PCI:4:0:0
(--) Apr 09 18:38:18 NVIDIA(0): none
(EE) Apr 09 18:38:18 NVIDIA(0): No display devices found for this X screen.
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Old 04-10-11, 07:12 AM   #137
teox99
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Angry Re: Optimus support for Linux

what sadness...

have you tried to turn off the nv card?
http://linux-hybrid-graphics.blogspot.com/

just a question for nvdia team:

after all these years of success in linux support,
for how long do you think to waste everything in the wc?
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Old 04-23-11, 05:51 AM   #138
Alfie7777
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Default Re: Optimus support for Linux

I am one of those who wholeheartedly bought a laptop (Dell XPS 15) with an NVIDIA graphics card (Geforce 540M) in it. I cannot make my NVIDIA GPU work owing to the Optimus issue in Linux. The most recent driver 270.41.06 is not working and that was a big surprise to me. I need to do GPGPU programming for scientific purposes.

What options do I have? Which of the options below should I go for?

1. Keep my computer while waiting for a software implementation to work, e.g. Linux Hybrid Graphics.

2. Buy a different brand that does not have dual graphics cards or that does but the non-NVIDIA GPU can be turned off in the BIOS. Can anyone recommend a computer with Geforce 400M or 500M? Where can I find those?

3. Buy a computer with an AMD GPU and switch to OpenCL entirely.

Last edited by Alfie7777; 04-23-11 at 06:02 AM. Reason: Linux information
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Old 04-23-11, 10:01 AM   #139
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Default Re: Optimus support for Linux

Quote:
Originally Posted by Alfie7777 View Post
What options do I have? Which of the options below should I go for?

2. Buy a different brand that does not have dual graphics cards or that does but the non-NVIDIA GPU can be turned off in the BIOS. Can anyone recommend a computer with Geforce 400M or 500M? Where can I find those?
I've heard that any with i7 would be good (since i7 have no gfx core inside, hence no Optimus activated)
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Old 04-23-11, 11:16 AM   #140
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Default Re: Optimus support for Linux

Quote:
Originally Posted by dk75 View Post
I've heard that any with i7 would be good (since i7 have no gfx core inside, hence no Optimus activated)
IIRC the Sandy-Bridge i7 (e.g. 2720QM) do have a GPU core. The Nehalem i7 (e.g. 720QM) didn't.
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Old 04-23-11, 07:27 PM   #141
Alfie7777
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Default Re: Optimus support for Linux

Yes, the first generation quad-core had no integrated graphics but the second generation does (http://en.wikipedia.org/wiki/List_of...icroprocessors).

It is clearly stated in the new CUDA SDK documentation (http://developer.download.nvidia.com...ADME_Linux.txt) that some laptops do contain an option to disable integrated GPUs (at least that is my impression) as seen in the quote below. The latest drivers 270.41 are stated to support Geforce 540M that I have.

"Some designs incorporating supported GPUs may not be
compatible with the NVIDIA Linux driver: in particular, notebook and
all-in-one desktop designs with switchable (hybrid) or Optimus graphics will
not work if means to disable the integrated graphics in hardware are not
available. Hardware designs will vary from manufacturer to manufacturer, so
please consult with a system's manufacturer to determine whether that
particular system is compatible."

Where can I buy such a laptop that can disable the Intel integrated graphics? Does it exist or is NVIDIA referring to a parallel universe that we cannot reach?

Thanks in advance.
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Old 04-23-11, 08:28 PM   #142
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Default Re: Optimus support for Linux

Finally. Somebody figured out GPU switching on Linux with Optimus notebooks.

https://github.com/awilliam/asus-swi.../master/README

Be sure to share your results on the mailing list.

https://lists.launchpad.net/hybrid-graphics-linux/
hybrid-graphics-linux@lists.launchpad.net

Current (at time of posting) but not exhaustive list of working models

Asus.UL30VT
Asus.UL50VT
Asus.UL80VT.1.0
HP.dm3
HP.SLIC-MPC
Lenovo.T410.2516CTO
Lenovo.T410s
Lenovo.T510
Sony.Vaio.VPCZ136GG
Sony.Vaio.VPCZ13V9E
Sony.VGN-Z51XG
Sony.VPCZ12C5E
Acer 5742G
Acer 5935g
Acer Aspire 5935
Asus K42Jc
Asus K52Jc
Asus N53Jf
Asus N53Jf
Asus N53SN
Asus N53SV
Asus N61JV
Asus N71JV
Asus N73SV
Asus P52JC
Asus U30JC
Asus U33JC
Asus U35JC
Asus U35JC
Asus U36JC
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Old 04-24-11, 06:06 AM   #143
Gusar
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Default Re: Optimus support for Linux

Quote:
Originally Posted by LLStarks View Post
Finally. Somebody figured out GPU switching on Linux with Optimus notebooks.
Quoting that page: "These drivers will not work if the system has only the "optimus" _DSM."

So this is for laptops with a hardware mux. I can only repeat again that Optimus is *not* switchable graphics. With optimus, the internal GPU never switches off.
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Old 04-24-11, 09:24 AM   #144
Alfie7777
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Default Re: Optimus support for Linux

Quote:
Originally Posted by LLStarks View Post
Finally. Somebody figured out GPU switching on Linux with Optimus notebooks.

...

Current (at time of posting) but not exhaustive list of working models

...
Thanks a lot for this.

Does this mean that it is possible to compile and run CUDA executable files in Linux? That is my primary concern. Everything else is secondary, or perhaps it would be more interesting later on.

CUDA first, everything else later on!
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