Hi, Does any of you have experience with getting hardware acceleration for nvidia optimus laptop videocards (e.g. GT555M) to work? My fresh new laptop with Nixos is getting into a workable state, but this videocard issue seems quite a pain.
If I understand the webpages that I read so far correctly, the difficulty with this optimus technology seems to be that the nvidia card is acting like a coprocessor for the intel videocard inside the processor. The nvidia card is thus not physically connected to any screen. When I start X with only the nvidia driver enabled, it does recognize the device, but does not find any screen. When I load the driver for intel as well, then it only uses the intel card. There seems to be an Ubuntu package called Ironhide (called before: Bumblebee, and before that Optimus Prime) that somehow seems to address this issue, so that you can actually map applications to a particular device (or something like that). I was wondering if any of you had experience with this? I'm trying to read up on things, but documentation is rather scarce. What is particularly confusing me is that in some descriptions the name "nvidia-current" is used to refer to a nvidia driver, which is apparently different from "nvidia"... Although it is likely a separate issue, when using the intel driver, all KDE popdown menus have a graphical corruption (e.g. fully black), whereas e.g. popup menus in Chrome do not have any corruption. But this is an incentive to me to put in some effort to get it up and running properly :) Cheers, Arie
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