On my Lidl Targa1526 notebook I did install latest Skype debian 2.0 on my own created usb-stick with latest Knoppix 6.0.
I can hear clear the opposite person via the headphone/loudspeaker but also with help of alsamix, alsamixergui, aumix it is not possible to connect the notebook buildin microphone to Skype. Also an external microphone is not succesfull.
Anybody any idea how to find the solution for this problem?

Vintage Intel Mainframe Server MCM CPU Substrate Lot Prototyping PGA Validation
$500.00
HP 13210-60001 Disc Drive Interface PCB HP 7900A 7901A Vintage
$225.61
HP 5060-8359 8K Semiconductor Memory Module 5080-9747 Vintage HP Computer
$224.72
Vintage Telex 952003-112 Mechanical Terminal Keyboard IBM 3270 Mainframe DB25
$799.00
Vtg IBM Mainframe Prototype Chip Module Lot 146 pc 1988-1993 ES/9000 Lab Arcive
$649.00
Vintage Mainframe Computer Disk Drive Pack Dyson SMD 5 Level Disks
$79.00
Commodore 64 PC with Model 1541 Diskette Drive and Flight Simulator II *READ*
$199.99
Rare Vintage Mainframe Burroughs Discrete-Transistor Cordwood Module B2500/B5000
$99.95
Vintage UNIVAC 3620670-01 Mainframe Logic Board 15MHz Sperry Computer PCB
$98.95
IBM 3274-51C Controller 3270 mainframe 8" floppy tested to power on
$500.00