I guest you may need to play around with the mixer (KDE,GNOME) or alsamixer to enable internal microphone. I have to enable recording/capture in GNOME volume applet to make the internal microphone worked on my D630.
Hope this help, Hung On 02/12/11 18:45, Walter Dnes wrote: > I got an Acer Aspire 4551-2728 earlier this year, and now I have some > spare time on my hands, and I've got it almost 100% functional under 64 > bit Gentoo linux. The networking was dead easy, as was the video (once > I was pointed to the instructions). The webcam took some digging, but > I figured it out, with "Mr. Google's" help. The last item that doesn't > work yet is the internal microphone. > > Has anybody gotten an internal microphone on any Acer laptop working? > My Google searches have found a couple of references to "it works out of > the box" under some versions of Ubuntu, but no technical details, which > doesn't really help. Here are a few snippets from alsa-info... > > !!DMI Information > !!--------------- > Manufacturer: Acer > Product Name: Aspire 4551 > > > !!Kernel Information > !!------------------ > Kernel release: 2.6.36-gentoo-r5 > Operating System: GNU/Linux > Architecture: x86_64 > Processor: AMD Athlon(tm) II P320 Dual-Core Processor > SMP Enabled: Yes > > !!Soundcards recognised by ALSA > !!----------------------------- > 0 [SB ]: HDA-Intel - HDA ATI SB > HDA ATI SB at 0xd0400000 irq 16 > 1 [HDMI ]: HDA-Intel - HDA ATI HDMI > HDA ATI HDMI at 0xd0110000 irq 19 > > > !!PCI Soundcards installed in the system > !!-------------------------------------- > 00:14.2 Audio device: ATI Technologies Inc SBx00 Azalia (Intel HDA) (rev 40) > 01:05.1 Audio device: ATI Technologies Inc Device 970f > > > !!Advanced information - PCI Vendor/Device/Susbsystem ID's > !!-------------------------------------------------------- > 00:14.2 0403: 1002:4383 (rev 40) > Subsystem: 1025:0372 > -- > 01:05.1 0403: 1002:970f > Subsystem: 1025:0372 > > !!HDA-Intel Codec information > !!--------------------------- > --startcollapse-- > Codec: Realtek ALC272X > Address: 0 > AFG Function Id: 0x1 (unsol 1) > Vendor Id: 0x10ec0272 > Subsystem Id: 0x10250372 > Revision Id: 0x100001 > > !!Aplay/Arecord output > !!------------ > > APLAY > > **** List of PLAYBACK Hardware Devices **** > card 0: SB [HDA ATI SB], device 0: ALC272X Analog [ALC272X Analog] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 1: HDMI [HDA ATI HDMI], device 3: ATI HDMI [ATI HDMI] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > > ARECORD > > **** List of CAPTURE Hardware Devices **** > card 0: SB [HDA ATI SB], device 0: ALC272X Analog [ALC272X Analog] > Subdevices: 1/1 > Subdevice #0: subdevice #0 >
