On Mon, 2009-12-28 at 11:17 -0200, Henrique de Moraes Holschuh wrote: > On Sun, 27 Dec 2009, Ian Molton wrote: > > Not directly related to your patch but I thought I'd mention... > > > > I've noticed issues with my X200 re: routing audio before / after docking. > > ThinkPads used to route line-out to the dock, with a fixed 1.1dB amplifier > (0.1dB increase) in the audio path, and had the volume control for > headphones and speakers done in a different audio path, extracted before the > line-out amplifier. The PeeCee beeper channel was routed to the headphones > and speakers, only. > > If Lenovo tried to reproduce that with the HDA mixer but without the "Laptop > Apudio Controller" the IBM thinkpads had, I wouldn't be surprised if it > causes massive ALSA disruption should the firmware screw with the HDA mixer > registers behind ALSA's back. Try asking the kernel to enable OSI(Linux) in > ACPI... I always forget the kernel command line parameter to do that, but > it is documented in the usual place. "acpi_osi=Linux" is the kernel command line param your looking for. > -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
