hybrid-graphics-linux team mailing list archive

[Bruno Pagani <bruno.n.pagani@xxxxxxxxx>]

1. vga_switcheroo will most probably not work (it works only for 
computer with hardware mux). So that by default you're stuck on the 
intel card.

2. No, because it is not really relevant. At least there is a lists of 
known ACPI calls.

3. Correct, but far from what is possible. We're working on improving 
this, but we lack time to develop.

4. Yes, but none of them are still for sale AFAIK.

5. Any Core iX (except professional i3) combined with a nvidia chipset 
means Optimus. And I would rather buy a 2nd gen iX (2xxx) than a first 
gen one, improvements made by Intel are huge.

Le 27/10/2011 16:36, Sarang Kulkarni a écrit :
> Hi,
>       I am in the market for a new laptop and I am trying to learn more
> about the current graphics situation so as to not make a mistake with
> my purchase.
>
> 1. I looked at the Ubuntu Community Documentation for hybrid graphics
> at https://help.ubuntu.com/community/HybridGraphics. It has given me
> the impression that even if I buy an Optimus Sandy Bridge laptop, I
> can use vga_switcheroo to use my nvidia card, and perhaps the problem
> is with real-time switching of cards without restarting X. Is this
> correct? Can I just configure things so that the nvidia card is always
> in use? I don't care if the Intel IGP also stays on and eats power. Or
> is it possible that I won't be able to use the nvidia card at all and
> will have to settle for the Intel IGP at all times?
>
> 2. Is there a list or a wiki page with a compatibility list and or
> machine specific gotchas with bumblebee / ironhide?
>
> 3. How is the graphics performance when using ironhide / bumblebee?
> How big is the hit because of VirtualGL etc.?
>
> 4. Is there a list of laptops with hardware muxes / switches or BIOS
> options to only use the discrete graphics card?
>
> 5. I am having a dilemma about value for money between similarly
> priced i7-2630QM and i7-740QM notebooks. Any opinions on whether it is
> a waste of money to buy Clarksfield i7-740QM at the same price as a
> Sandy Bridge i7-2630QM notebook, only because the former will have
> hassle-free graphics?
>
> Thanks a lot for all your responses, and for all the work you guys are
> doing to bring hybrid graphics to linux. it is a shame the
> manufacturers won't put out proper drivers.
>
> Regards,
> Sarang