hybrid-graphics-linux team mailing list archive
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Re: Thinkpad W520
By default, the Mesa libraries are already installed. After installing
nvidia-current (the nvidia
driver you've installed through the jockey), the default becomes nvidia
sinds it takes precedence
over the mesa ones. To change that, use:
update-alternatives --config i386-linux-gnu_gl_conf
Repeat it for x86_64 if you run a 64-bit OS.
Note that Optimus is not supported for Linux, so you really have to use a
Bumblebee or change your BIOS settings.
On Fri, Oct 21, 2011 at 9:42 AM, Matthias Loidolt <
> Yes, I'm still using Ubuntu, it's oneiric on my laptop. How can I install
> them side-by-side? I installed the nvidia driver via jockey, but i didn't
> see any configuration there.
> Should i just install it and then change the alternative?
> Am 20.10.2011 23:49, schrieb Lekensteyn:
> Are you still using Ubuntu? (I noticed Dapper Drake in your email.)
> Ubuntu allows for having the libraries installed side-by-side and then use
> the alternatives
> system to set the OpenGL at your choice. Bumblebee sets the default driver
> to Mesa
> (necessary for the Intel GPU) and sets the ModulePath to the one containing
> the nvidia
> For the Bumblebee project, see
> Bumblebee Developer
> On Thu, Oct 20, 2011 at 11:09 PM, Dapper <kedapperdrake@xxxxxxxxxxxxxx>wrote:
>> Hi guys,
>> I have a new Thinkpad W520 with Nvidia Quadro 2000M and an Intel HD 3000.
>> Maybe you know that it has a hardware mux, so I could use both of them,
>> but I have to switch in BIOS and install/uninstall the nvidia driver.
>> In optimus mode, I can only use the Intel card, including 3D acceleration
>> for it (if nvidia driver isn't installd), but the nvidia card is still
>> active. Thanks to acpi_call, i think i managed to disable the nvidia card:
>> I have to unload nouveau ( rmmod nouveau ), then to load acpi_call (
>> modprobe acpi_call), and then I can run test_off.sh, which works with the
>> method \_SB.PCI0.PEG.VID._DSM. After that, the card still shows up in lspci,
>> but it doesn't show up in powertop anymore.
>> I adapted Erik Andresen's script for his T420, and now it works for me.
>> But there are still 2 problems left:
>> 1. The rc6 sleep state of the intel gpu doesn't work (not really a problem
>> for this mailing list, i know)
>> 2. I can't use 3D acceleration parallel with both GPUs. Do you know a way
>> how to install the intel and the nvidia driver parallel without letting
>> nvidia's one overwrite the intel libraries for 3D (I think that's why the
>> intel one doesn't accelerate when nvidia driver is installed)?
>> If i could install them parallel, my next step would be to try out
>> ironhide or bumblebee.
>> Thanks in advance, and sorry for my english,
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