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March 2011

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Subject:
Re: SL 6.0 on Thinkpad T410s crash on login.
From:
Vaclav Mocek <[log in to unmask]>
Reply To:
Vaclav Mocek <[log in to unmask]>
Date:
Wed, 16 Mar 2011 00:11:50 +0000
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> Have you checked to see if the issue will be resolved by using the
> ELRepo kmod-nvidia package [1] ?
>
> Alan.
>
> [1] http://elrepo.org/tiki/kmod-nvidia
Yes, I have tried it. Nvidia Optimus is not supported and never will be 
in Linux - official Nvidia's statement. The similar situation is with 
ATI's fglrx and their switchable HD5470, which is quite common now.

So only opensource drivers with kernel > 2.6.35 (SL6 is based on 
2.6.32), with vga_switcheroo 
("http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=6a9ee8af344e3bd7dbd61e67037096cdf7f83289"). 
As a result you will have poor 3D acceleration, higher power consumption 
and no OpenCL or CUDA.

The best solution is to switch the dedicated graphic card off in BIOS.

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