Hi Folks, hope someone can help me with this.
I recently installed linux mint 13 with mate on my toshiba laptop.
Except for my internal mic, all other sound seems to work. The internal mic has worked fine under all of these: debian wheezy with kde, debian squeeze with gnome, ubuntu with gnome, and windows.
I've searched in google and the mint forums, but have not found any solutions to my problem.
To test the mics I've used mhWaveEdit (attempting to record a small .wav file from the mics) and skype (attempting to make test calls). The results have been exactly the same in both cases: The internal microphone never works, and if I mess with pavucontrol I can make an externally plugged in microphone work.
So far, I've run tests as described above while trying the following:
a) In alsamixer made sure that the microphone and capture entries were un-muted and the levels at some non-zero value (tried all different levels up to maxed).
b) In the sound preferences applet made sure that under the input tab the mute check box was unchecked and the input volume slider was at some non-zero level (tried all different levels up to maxed).
c) Installed pavucontrol and played around with the controls under the Input Devices tab. Specifically I made sure that the input was not muted and that the volume sliders were at non-zero levels just as in a) and b) above. The Input Devices tab also has a drop down menu which in my case shows the following 2 choices: "Internal Microphone" and "Microphone". If I select "Internal Microphone", no microphone, internal or external works; if I select "Microphone", only the external mic works.
inxi -Fxz reports the following for my laptop:
System: Host: curiosity Kernel: 3.2.0-23-generic x86_64 (64 bit, gcc: 4.6.3) Desktop: N/A Distro: Linux Mint 13 Maya
Machine: System: TOSHIBA (portable) product: TECRA A11 version: PTSE3U-00R00G
Mobo: TOSHIBA model: Portable PC version: Version A0 Bios: TOSHIBA version: Version 1.70 date: 03/03/2010
CPU: Dual core Intel Core i7 CPU M 620 (-HT-MCP-) cache: 4096 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 10639
Clock Speeds: 1: 1199.00 MHz 2: 1199.00 MHz 3: 1199.00 MHz 4: 1199.00 MHz
Graphics: Card: NVIDIA GT218M [NVS 2100M] bus-ID: 01:00.0
X.org: 1.11.3 drivers: nvidia (unloaded: nouveau,vesa,fbdev) tty size: 160x30 Advanced Data: N/A for root
Audio: Card-1: NVIDIA High Definition Audio Controller driver: snd_hda_intel bus-ID: 01:00.1 Sound: ALSA ver: 1.0.24
Card-2: Intel 5 Series/3400 Series Chipset High Definition Audio driver: snd_hda_intel bus-ID: 00:1b.0
Network: Card-1: Intel Centrino Advanced-N 6200 driver: iwlwifi ver: in-tree: bus-ID: 03:00.0
IF: wlan0 state: up mac: <filter>
Card-2: Intel 82577LM Gigabit Network Connection driver: e1000e ver: 1.5.1-k port: 3020 bus-ID: 00:19.0
IF: eth0 state: down mac: <filter>
Drives: HDD Total Size: 500.1GB (3.9% used) 1: /dev/sda TOSHIBA_MQ01ABD0 500.1GB 36C
Partition: ID: / size: 462G used: 19G (5%) fs: ext4 ID: swap-1 size: 4.14GB used: 0.00GB (0%) fs: swap
Sensors: System Temperatures: cpu: 44.0C mobo: N/A gpu: 0.0:49C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 162 Uptime: 2:01 Memory: 609.2/3813.2MB Runlevel: 2 Gcc sys: 4.6.3 Client: Shell inxi: 1.7.33
While using an external mic is an acceptable solution when I am at home, it is rather inconvenient when I am elsewhere. If anyone could give me any pointers on how to further troubleshoot this issue, I would be most grateful.