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Thursday, 10 February 2011

Video: Matthew Garrett @ -- Making laptops work with Linux

Here is the link for a video where Matthew Garrett explains, in truly pessimistic tone, why it was so difficult to get APM, then ACPI, then WMI to work on Linux laptops:

A lot of what people try to do with hybrid graphics linux is to simply read ACPI tables and figure out what the different calls might do, but this is a process that hasn't been helped by any wisely crafted tools so far.

*By the way, TRP4 is a "transient" receptor protein in Drosophila :-)


Monday, 7 February 2011

Linux Dell XPS L501X - switching nvidia off

One of the hybrid-graphics-linux team members has found a way to switch off the nvidia graphics card from the Dell XPS L501X laptop model. Here are the details of the process:

For more information, join the hybrid-graphics-linux team and reply to the email in the mailing list:

Tuesday, 1 February 2011

An update on the hybrid-graphics-linux launchpad mailing list

This is a summary of what has been happening on the hybrid-graphics-linux launchpad mailing list.

We now have over 410 team members, which shows that a lot of hybrid graphics laptops are being used among the Linux community.

This mailing list is the best place to post your questions/comments regarding hybrid-graphics and linux. Although some people use the comments in this blog to post their laptop details and their investigations, if you want to have a prompt reply, join the launchpad team and use the mailing list.

Here is an update of the latest emails to the mailing list:

Latest Dell Vostro 3300 and 3400 models with Intel i5 and nvidia 310M with no ACPI method found to work. Slightly older Dell Vostro 3700 model (system version A10) has a working SB.PCI0.P0P1.PEGP._OFF method.

Lots of people with Asus models, like the K52, N73, N53, P52, etc, some with working ACPI methods, not all of them.

Lots of people with the Dell XPS L501x (also L701X) model: there is still no known way to control the nvidia card on this models in Linux. It would be great to find a way to switch on/off the card for these models, since they seem to be selling well.

People report their successes and failures with the Dell Alienware M11x R2 model

People report their successes and failures with Asus 1215N: there is a lot of information around for this laptop model. There is also a Asus 1015PN model, it seems to be slightly different than the other.

The Lenovo Ideapad Z360 has no ACPI method for switching on/off the nvidia card yet.

The Samsung QX410 model was found to have a SB.PCI0.P0P2.PEGP._OFF method to switch off the nvidia card.