On Mon, 20 Apr 2009, Yang Zhe wrote: > Volume mute key doesn't produce any keycode to system. Mute is done on hardware. It may be reflected somewhere in the HDA mixer (I don't know), and in the EC register space, but it does not send keycodes. > And I find that, after I echo up/down/mute/level <N> > > /proc/acpi/ibm/volume, then read the nvram immediately, i find the > volume byte is strange.. There is no volume control, don't use that. The driver doesn't yet know how to detect such things, and makes a mess. It is possible, however, that the MUTE bit can be read correctly from NVRAM or the EC space (register 0x30). Please manipulate Mute and volume *using the keyboard* only, and tell me if the mute part of "cat /proc/acpi/ibm/volume" works fine... -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh ------------------------------------------------------------------------------ Crystal Reports - New Free Runtime and 30 Day Trial Check out the new simplified licensign option that enables unlimited royalty-free distribution of the report engine for externally facing server and web deployment. http://p.sf.net/sfu/businessobjects _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
