64-bit support for Lenovo Thinkpad L512

Asked by pwaring

The page describing the certification for this laptop states:

"The Lenovo Thinkpad L512 laptop has been awarded the status of Certified on Ubuntu PC (x86)."

However, the processor (an i3 or i5, depending on the exact model) is a 64 bit CPU. Does the certification extend to amd64?

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Brendan Donegan
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Best Brendan Donegan (brendan-donegan) said :

Hi pwaring,

Indeed this model does have a 64-bit CPU, but according to our policy it was tested with the i386 architecture image. You are welcome to try the 64-bit version on your system if you want, but we haven't tested with that version.

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Brendan Donegan (brendan-donegan) said :

Brendan Donegan suggests this article as an answer to your question:
FAQ #1554: “What version of Ubuntu is used when certifying a system?”.

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pwaring (launchpad-pwaring) said :

Is there any reason why the 64 bit version isn't used when certifying desktops, laptops and netbooks? All new machines are likely to have 64 bit CPUs (and have done for some time), and it seems a bit odd to use the 32 bit version, especially with machines which can take in excess of 4GB of RAM like some models of the L512.

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Victor Tuson Palau (vtuson) said :

Yes there is. The Desktop team in Ubuntu endorses their 32bit version as their main official version. We follow as a rule what they recommend.

In some cases we might test on 64bit if the OEM specifically requires it

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pwaring (launchpad-pwaring) said :

Thanks Brendan Donegan, that solved my question.