hybrid-graphics-linux team mailing list archive

[Alex Williamson <alex.l.williamson@xxxxxxxxx>]

On Sun, May 15, 2011 at 12:10 PM, Diego <diegosolor@xxxxxxxxx> wrote:
> So, I install and configure the module correctly
> Using the same parameters you use for UL30VT I can turn on and off the
> nvidia card (the power's consuption downs about 6 watts!)
> but! as in asus-switcheroo I can not use the nvidia card. If I do a "echo
> DIS > switch", the screen freezes and I have to blind type "echo IGD >
> switch" to get the screen back

That's exactly why I wrote byo-switcheroo.  Now you can play with
acpi_call on your system to figure out how to switch the mux and add
it to the switchto scripts.  I've only got one hybrid graphics laptop,
and the MXMX/MXDS/_DSM script seems to work there.

> Also, sometimes the folder /sys/kernel/debug/vgaswitcheero doesn't be
> created, so I have to "rmmod nouveau && modprobe nouveau" to make it appear
> thanks for the help!

Probably a nouveau problem, check dmesg and look for an "unsupported
chipset" error message.  Thanks,

Alex