Hi, I would like to acknowledge that Eva and Matze did a great job with the sony-laptop module, which is a good solution for the only-intel or only-nvidia options.
I remember Matze mentioning in previous emails that he was investigating some other options for communicating with the nvidia card. I've recently started compiling a list of laptop models that have hybrid graphics cards, with ATI PowerXpress or Nvidia SLI HybridGraphics capabilities: http://en.wikipedia.org/wiki/Linux_Hybrid_Graphics As you can see, there are other DSDT tables there for hybrid nvidia laptops. Maybe this information is relevant to compare against the vaio z DSDT table. We've exchanged emails in this mailing list (see archives) with the linux-acpi developer Matthew Garrett. Here are are some of his comments: 1) Nvidia hybrid machines. These have been worked out. I sent a driver to the linux-acpi mailing list that will disable whichever chip is not in use. Runtime switching is easy from a technology point of view, but currently impossible from the point of view of POSTing the nvidia gpu or getting X to handle switchover. He also mentioned that some of the work in the nouveau drivers could have a positive impact in being able to hot-switching the nvidia card on and off. But this work is still not complete. So in an optimistic mood I can say that I think there's been a lot of work done and there are good prospects for more! Cheers, Albert. > > > > However, I hope there'll be a solution. Some day, maybe... > > Also I think alot of people joined the Sony Vaio launchpad in hope to solve > the card switching problems (according to the discussions here). > > I also bought my Vaio because of its great nvidia card. > > Regards. > > -- > Zuzanna K. Filutowska > Home page: http://platyna.platinum.linux.pl/. > NIC-HDL: ZKF-RIPE, IRC nick: Platyna, Linux RU: #289909. > Well? I will go far, As the echo of the devout bell goes. --Sarah Brightman > > _______________________________________________ > Mailing list: > https://launchpad.net/~sony-vaio-z-series<https://launchpad.net/%7Esony-vaio-z-series> > Post to : sony-vaio-z-series@lists.launchpad.net > Unsubscribe : > https://launchpad.net/~sony-vaio-z-series<https://launchpad.net/%7Esony-vaio-z-series> > More help : https://help.launchpad.net/ListHelp >
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