I use Linux (specifically Kubuntu 12.04) on a computer with a GeForce GTX 675M GPU (the computer is the MainGear ex-L 15 SuperStock gaming laptop). The driver I use is nouveau (I don't think a proprietary version for Linux has come out yet). Anyways, every time I boot my computer the kernel spams the system logs with things like this:
[some time] [drm] nouveau 0000:01:00.0: unknown i2c port 49
[some time] [drm] nouveau 0000:01:00.0: unknown i2c port 56
[some time] [drm] nouveau 0000:01:00.0: unknown i2c port 57
[some time] [drm] nouveau 0000:01:00.0: unknown i2c port 48
[some time] [drm] nouveau 0000:01:00.0: unknown i2c port 54
It's repeated over and over, many thousands of times. See here too.
What does this mean? My computer DOES boot, and the graphics look fine. Does it mean the GPU isn't detected and the computer is falling back to integrated graphics? Or is it just a harmless error and I'm freaking out for no reason (I'm freaking out because this GPU is very new and I worry that the nouveau driver for it is very unstable/incomplete). I've done a few tests to see if the GPU works, including using the command glxgears (which gave an average of 59.6675 FPS) and glxinfo | grep direct (it said direct rendering WAS enabled). However, things like VLC media player, which ran fine on my other computer, struggles playing high quality video files on my new computer (it freezes for about five seconds every couple of minutes), and if I'm right VLC will use hardware acceleration when available. Basically what I want to know is, in this Linux computer, is the GPU active and available to perform hardware acceleration or is the GPU too new and I'll have to wait months/years for a decent nouveau driver to come out or the proprietary one to be released?
I already asked in the Nvidia forums but haven't received a reply yet.