On 05/17/2013 03:04 PM, Torstein Hegge wrote: > On Fri, May 17, 2013 at 09:16:49 +0200, B. Zhang wrote: >> I have two alsa-info output for kernel 3.1 and 3.9. Attached. >> A diff show me : >> ======= >> !!Module: snd_usb_audio >> - async_unlink : Y >> =========== >> I found there was a change https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/sound/usb/card.c?id=20d32022a8d8639a33d0e429f2d3c51b527ea362 >> after kernel 3.4 >> >> How you think about this ? > That isn't related to the pops you are hearing, the commit just removes > a module parameter, and the module parameter was set to the default > value. Yes ! I just made two tests. - kernel 3.9.2 + "async_unlink", the problem still exists - kernel 3.5.7, no "pops" noise, and I see "feedback format = 8.16", so the noises are not caused by it. > There is quite a bit of changes both in sound/usb and drivers/usb > between 3.4 and 3.9. You could try to test with a 3.5 kernel and a 3.8 > kernel to narrow down where the problem is coming from. Testing with 3.6 > and 3.7 would require that you apply the fix for the "atomic DMA > coherent pool is too small" issue. I'll try 3.6 (and 3.7). Maybe it is caused by a drivers/usb change in kernel 3.6. Thanks, Bin > > You could also try to reproduce the issue with 3.9 on a different USB > host, perhaps on x86 or something that isn't ARM. > > > Torstein > >> upload=true&script=true&cardinfo= >> !!################################ >> !!ALSA Information Script v 0.4.61 >> !!################################ >> >> !!Script ran on: Tue Feb 5 23:07:26 UTC 2013 >> >> >> !!Linux Distribution >> !!------------------ >> >> Arch Linux \r (\l) NAME="Arch Linux ARM" ID=archarm ID_LIKE=arch PRETTY_NAME="Arch Linux ARM" HOME_URL="http://archlinuxarm.org/"; SUPPORT_URL="https://archlinuxarm.org/forum"; BUG_REPORT_URL="https://github.com/archlinuxarm/PKGBUILDs/issues"; >> >> >> !!DMI Information >> !!--------------- >> >> Manufacturer: >> Product Name: >> Product Version: >> Firmware Version: >> >> >> !!Kernel Information >> !!------------------ >> >> Kernel release: 3.1.10-15-ARCH >> Operating System: GNU/Linux >> Architecture: armv5tel >> Processor: unknown >> SMP Enabled: No >> >> >> !!ALSA Version >> !!------------ >> >> Driver version: 1.0.24 >> Library version: 1.0.26 >> Utilities version: 1.0.26 >> >> >> !!Loaded ALSA modules >> !!------------------- >> >> snd_usb_audio >> >> >> !!Sound Servers on this system >> !!---------------------------- >> >> Jack: >> Installed - Yes (/usr/bin/jackd) >> Running - No >> >> >> !!Soundcards recognised by ALSA >> !!----------------------------- >> >> 0 [M20 ]: USB-Audio - M2Tech USB Audio 2.0 >> M2Tech M2Tech USB Audio 2.0 at usb-orion-ehci.0-1, high speed >> >> >> !!PCI Soundcards installed in the system >> !!-------------------------------------- >> >> >> >> !!Advanced information - PCI Vendor/Device/Subsystem ID's >> !!------------------------------------------------------- >> >> >> >> !!Loaded sound module options >> !!--------------------------- >> >> !!Module: snd_usb_audio >> async_unlink : Y >> device_setup : 0,0,0,0,0,0,0,0 >> enable : Y,Y,Y,Y,Y,Y,Y,Y >> id : (null),(null),(null),(null),(null),(null),(null),(null) >> ignore_ctl_error : N >> index : -1,-1,-1,-1,-1,-1,-1,-1 >> nrpacks : 8 >> pid : -1,-1,-1,-1,-1,-1,-1,-1 >> vid : -1,-1,-1,-1,-1,-1,-1,-1 >> >> >> !!USB Mixer information >> !!--------------------- >> --startcollapse-- >> >> USB Mixer: usb_id=0x249c930b, ctrlif=0, ctlerr=0 >> Card: M2Tech M2Tech USB Audio 2.0 at usb-orion-ehci.0-1, high speed >> Unit: 10 >> Control: name="M2Tech Clock Selector Playback Volume", index=1 >> Info: id=10, control=2, cmask=0x0, channels=1, type="S16" >> Volume: min=-32512, max=0, dBmin=-12700, dBmax=0 >> Unit: 10 >> Control: name="M2Tech Clock Selector Playback Volume", index=0 >> Info: id=10, control=2, cmask=0x3, channels=2, type="S16" >> Volume: min=-32512, max=0, dBmin=-12700, dBmax=0 >> Unit: 10 >> Control: name="M2Tech Clock Selector Playback Switch", index=1 >> Info: id=10, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN" >> Volume: min=0, max=1, dBmin=0, dBmax=0 >> Unit: 10 >> Control: name="M2Tech Clock Selector Playback Switch", index=0 >> Info: id=10, control=1, cmask=0x3, channels=2, type="INV_BOOLEAN" >> Volume: min=0, max=1, dBmin=0, dBmax=0 >> --endcollapse-- >> >> >> !!ALSA/HDA dmesg >> !!-------------- >> >> >> >> upload=true&script=true&cardinfo= >> !!################################ >> !!ALSA Information Script v 0.4.61 >> !!################################ >> >> !!Script ran on: Fri May 17 06:20:10 UTC 2013 >> >> >> !!Linux Distribution >> !!------------------ >> >> Arch Linux \r (\l) NAME="Arch Linux ARM" ID=archarm ID_LIKE=arch PRETTY_NAME="Arch Linux ARM" HOME_URL="http://archlinuxarm.org/"; SUPPORT_URL="https://archlinuxarm.org/forum"; BUG_REPORT_URL="https://github.com/archlinuxarm/PKGBUILDs/issues"; >> >> >> !!DMI Information >> !!--------------- >> >> Manufacturer: >> Product Name: >> Product Version: >> Firmware Version: >> >> >> !!Kernel Information >> !!------------------ >> >> Kernel release: 3.9.2-3-ARCH >> Operating System: GNU/Linux >> Architecture: armv5tel >> Processor: unknown >> SMP Enabled: No >> >> >> !!ALSA Version >> !!------------ >> >> Driver version: k3.9.2-3-ARCH >> Library version: 1.0.27 >> Utilities version: 1.0.27 >> >> >> !!Loaded ALSA modules >> !!------------------- >> >> snd_usb_audio >> >> >> !!Sound Servers on this system >> !!---------------------------- >> >> Jack: >> Installed - Yes (/usr/bin/jackd) >> Running - No >> >> >> !!Soundcards recognised by ALSA >> !!----------------------------- >> >> 0 [M20 ]: USB-Audio - M2Tech USB Audio 2.0 >> M2Tech M2Tech USB Audio 2.0 at usb-orion-ehci.0-1, high speed >> >> >> !!PCI Soundcards installed in the system >> !!-------------------------------------- >> >> >> >> !!Advanced information - PCI Vendor/Device/Subsystem ID's >> !!------------------------------------------------------- >> >> >> >> !!Loaded sound module options >> !!--------------------------- >> >> !!Module: snd_usb_audio >> device_setup : 0,0,0,0,0,0,0,0 >> enable : Y,Y,Y,Y,Y,Y,Y,Y >> id : (null),(null),(null),(null),(null),(null),(null),(null) >> ignore_ctl_error : N >> index : -1,-1,-1,-1,-1,-1,-1,-1 >> nrpacks : 8 >> pid : -1,-1,-1,-1,-1,-1,-1,-1 >> vid : -1,-1,-1,-1,-1,-1,-1,-1 >> >> >> !!USB Mixer information >> !!--------------------- >> --startcollapse-- >> >> USB Mixer: usb_id=0x249c930b, ctrlif=0, ctlerr=0 >> Card: M2Tech M2Tech USB Audio 2.0 at usb-orion-ehci.0-1, high speed >> Unit: 10 >> Control: name="M2Tech Clock Selector Playback Volume", index=1 >> Info: id=10, control=2, cmask=0x0, channels=1, type="S16" >> Volume: min=-32512, max=0, dBmin=-12700, dBmax=0 >> Unit: 10 >> Control: name="M2Tech Clock Selector Playback Volume", index=0 >> Info: id=10, control=2, cmask=0x3, channels=2, type="S16" >> Volume: min=-32512, max=0, dBmin=-12700, dBmax=0 >> Unit: 10 >> Control: name="M2Tech Clock Selector Playback Switch", index=1 >> Info: id=10, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN" >> Volume: min=0, max=1, dBmin=0, dBmax=0 >> Unit: 10 >> Control: name="M2Tech Clock Selector Playback Switch", index=0 >> Info: id=10, control=1, cmask=0x3, channels=2, type="INV_BOOLEAN" >> Volume: min=0, max=1, dBmin=0, dBmax=0 >> --endcollapse-- >> >> >> !!ALSA Device nodes >> !!----------------- >> >> crw-rw---- 1 root audio 116, 0 May 17 01:39 /dev/snd/controlC0 >> crw-rw---- 1 root audio 116, 16 May 17 03:00 /dev/snd/pcmC0D0p >> crw-rw---- 1 root audio 116, 1 May 17 01:39 /dev/snd/seq >> crw-rw---- 1 root audio 116, 33 May 17 01:39 /dev/snd/timer >> >> /dev/snd/by-id: >> total 0 >> drwxr-xr-x 2 root root 60 May 17 01:39 . >> drwxr-xr-x 4 root root 160 May 17 01:39 .. >> lrwxrwxrwx 1 root root 12 May 17 01:39 usb-M2Tech_M2Tech_USB_Audio_2.0_0000-00 -> ../controlC0 >> >> /dev/snd/by-path: >> total 0 >> drwxr-xr-x 2 root root 60 May 17 01:39 . >> drwxr-xr-x 4 root root 160 May 17 01:39 .. >> lrwxrwxrwx 1 root root 12 May 17 01:39 platform-orion-ehci.0-usb-0:1:1.0 -> ../controlC0 >> >> >> !!ALSA configuration files >> !!------------------------ >> >> !!System wide config file (/etc/asound.conf) >> >> pcm.!default { >> type hw >> card 0 >> } >> >> ctl.!default { >> type hw >> card 0 >> } >> >> >> !!Aplay/Arecord output >> !!-------------------- >> >> APLAY >> >> **** List of PLAYBACK Hardware Devices **** >> card 0: M20 [M2Tech USB Audio 2.0], device 0: USB Audio [USB Audio] >> Subdevices: 0/1 >> Subdevice #0: subdevice #0 >> >> ARECORD >> >> **** List of CAPTURE Hardware Devices **** >> >> !!Amixer output >> !!------------- >> >> !!-------Mixer controls for card 0 [M20] >> >> Card hw:0 'M20'/'M2Tech M2Tech USB Audio 2.0 at usb-orion-ehci.0-1, high speed' >> Mixer name : 'USB Mixer' >> Components : 'USB249c:930b' >> Controls : 4 >> Simple ctrls : 2 >> Simple mixer control 'M2Tech Clock Selector',0 >> Capabilities: pvolume pswitch >> Playback channels: Front Left - Front Right >> Limits: Playback 0 - 127 >> Mono: >> Front Left: Playback 127 [100%] [0.00dB] [on] >> Front Right: Playback 127 [100%] [0.00dB] [on] >> Simple mixer control 'M2Tech Clock Selector',1 >> Capabilities: pvolume pvolume-joined pswitch pswitch-joined >> Playback channels: Mono >> Limits: Playback 0 - 127 >> Mono: Playback 127 [100%] [0.00dB] [on] >> >> >> !!Alsactl output >> !!-------------- >> >> --startcollapse-- >> state.M20 { >> control.1 { >> iface MIXER >> name 'M2Tech Clock Selector Playback Switch' >> value.0 true >> value.1 true >> comment { >> access 'read write' >> type BOOLEAN >> count 2 >> } >> } >> control.2 { >> iface MIXER >> name 'M2Tech Clock Selector Playback Switch' >> index 1 >> value true >> comment { >> access 'read write' >> type BOOLEAN >> count 1 >> } >> } >> control.3 { >> iface MIXER >> name 'M2Tech Clock Selector Playback Volume' >> value.0 127 >> value.1 127 >> comment { >> access 'read write' >> type INTEGER >> count 2 >> range '0 - 127' >> dbmin -12700 >> dbmax 0 >> dbvalue.0 0 >> dbvalue.1 0 >> } >> } >> control.4 { >> iface MIXER >> name 'M2Tech Clock Selector Playback Volume' >> index 1 >> value 127 >> comment { >> access 'read write' >> type INTEGER >> count 1 >> range '0 - 127' >> dbmin -12700 >> dbmax 0 >> dbvalue.0 0 >> } >> } >> } >> --endcollapse-- >> >> >> !!All Loaded Modules >> !!------------------ >> >> Module >> snd_usb_audio >> snd_usbmidi_lib >> snd_hwdep >> snd_pcm >> snd_page_alloc >> snd_rawmidi >> snd_seq_device >> snd_timer >> snd >> soundcore >> >> >> !!ALSA/HDA dmesg >> !!-------------- >> >> >> ------------------------------------------------------------------------------ AlienVault Unified Security Management (USM) platform delivers complete security visibility with the essential security capabilities. Easily and efficiently configure, manage, and operate all of your security controls from a single console and one unified framework. Download a free trial. http://p.sf.net/sfu/alienvault_d2d _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
