On Sun, 26 Apr 2009, Yang Zhe wrote: > > Does the mute command from /proc/acpi/ibm/volume causes MUTE to activate? > Yes. > The only thing goes wrong is that with mute button pressed, the volume > byte becomes 0x4*, * is the level. By echo mute > volume, it becomes > 0xc*. c & 4 = 4. > > Great thanks if you can do something around ALSA. As far as I know, > Thinkpad T400 and T500 wihch I met are in the same status with the > volume control. Ok, so let me confirm it: 1. ThinkPad-acpi reports correctly the MUTE state, and it is always syncronized with the hardware state (i.e. no sound can get through the speakers when thinkpad-acpi thinks MUTE is ENABLED, and sound ALWAYS can get through the speakers when thinkpad-acpi thinks MUTE is DISABLED) ? 2. You can enable the firmware MUTE function from thinkpad-acpi, and when it is enabled by thinkpad-acpi, the MUTE LED goes ON, and sound stops coming from the speakers (i.e. it is really mute) ? 3. If you play with (2) and also use the mute and volume _BUTTONS_, it never goes out of sync (thinkpad-acpi thinks it is mute when it is not, or thinks it is unmuted when it is muted) ? -- "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
