Also having the issue on a fresh 16.04.1. init-headphone 0.11 gets EBUSY on the first write to SMBus (modified to print out errno, diff below). Used to work on 15.04-15.10 on the same laptop.
$ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.04.1 LTS Release: 16.04 Codename: xenial $ sudo init-headphone-errno INFO:root:Version: 0.11 INFO:root:Trying to add module to the kernel: i2c_dev INFO:root:Trying to add module to the kernel: i2c_i801 DEBUG:root:Available i2c busses: ['i915 gmbus ssc', 'i915 gmbus vga', 'i915 gmbus panel', 'i915 gmbus dpc', 'i915 gmbus dpb', 'i915 gmbus dpd', 'DPDDC-A', 'SMBus I801 adapter at f040'] DEBUG:root:Supported i2c bus names: ['SMBus I801 adapter'] DEBUG:root:Selected i2c bus: SMBus I801 adapter at f040 INFO:SMBus:Opening I2C bus: /dev/i2c-7 INFO:SMBus:Setting I2C slave address: 115 INFO:SMBus:Writing byte data on I2C bus: (device_cmd: 0xa, value: 0x41) ERROR:SMBus:Can't transfer data on I2C bus [EBUSY] INFO:SMBus:Closing I2C bus ERROR:root:Operation failed DEBUG:root:Exception occurred: Traceback (most recent call last): File "/usr/sbin/init-headphone-errno", line 329, in <module> main() File "/usr/sbin/init-headphone-errno", line 315, in main init() File "/usr/sbin/init-headphone-errno", line 247, in init set_effect(DEFAULT_EFFECT) File "/usr/sbin/init-headphone-errno", line 263, in set_effect DATA_ENABLE_OUTPUT) File "/usr/sbin/init-headphone-errno", line 241, in write_data_to_device write_prolog(i2c_bus) File "/usr/sbin/init-headphone-errno", line 232, in write_prolog i2c_bus.write_byte_data(0x0a, 0x41) File "/usr/sbin/init-headphone-errno", line 149, in write_byte_data self.__access(I2C_SMBUS_WRITE, device_cmd, I2C_SMBUS_BYTE_DATA, data) File "/usr/sbin/init-headphone-errno", line 141, in __access raise RuntimeError("Can't transfer data on I2C bus [{}]".format(e)) RuntimeError: Can't transfer data on I2C bus [EBUSY] $ sudo i2cdetect 7 WARNING! This program can confuse your I2C bus, cause data loss and worse! I will probe file /dev/i2c-7. I will probe address range 0x03-0x77. Continue? [Y/n] 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 70: -- -- -- -- -- -- -- -- $ diff -u /usr/sbin/init-headphone /usr/sbin/init-headphone-errno --- /usr/sbin/init-headphone 2016-05-08 10:27:04.000000000 +0300 +++ /usr/sbin/init-headphone-errno 2016-10-21 16:58:45.292881695 +0300 @@ -82,6 +82,12 @@ ("size", ctypes.c_uint), ("data", ctypes.POINTER(i2c_smbus_data))] +_errno = ctypes.cdll.LoadLibrary("libc.so.6").__errno_location +_errno.restype = ctypes.POINTER(ctypes.c_int) + +def get_errno(): + import errno + return errno.errorcode[_errno()[0]] class SMBus(object): def __init__(self, path): @@ -129,9 +135,10 @@ args.size = size args.data = ctypes.pointer(data) err = self.__libc.ioctl(self.__fd, I2C_SMBUS, ctypes.byref(args)) + e = get_errno() if err != 0: - self.__logger.error("Can't transfer data on I2C bus") - raise RuntimeError("Can't transfer data on I2C bus") + self.__logger.error("Can't transfer data on I2C bus [{}]".format(e)) + raise RuntimeError("Can't transfer data on I2C bus [{}]".format(e)) def write_byte_data(self, device_cmd, value): self.__logger.info("Writing byte data on I2C bus: " -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to alsa-driver in Ubuntu. https://bugs.launchpad.net/bugs/1313904 Title: [W230SS, VIA VT1802, Green Headphone Out, Front] No sound after suspend/resume Status in ALSA driver: Unknown Status in alsa-driver package in Ubuntu: Confirmed Bug description: No sound in headphones jack after suspend/resume. But sound in headphones jack is OK after cold boot. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: alsa-base 1.0.25+dfsg-0ubuntu4 Uname: Linux 3.15.0-031500rc2-generic x86_64 ApportVersion: 2.14.1-0ubuntu3 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mik 2139 F.... pulseaudio /dev/snd/controlC1: mik 2139 F.... pulseaudio CurrentDesktop: Unity Date: Mon Apr 28 23:20:59 2014 InstallationDate: Installed on 2014-04-26 (2 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) PackageArchitecture: all SourcePackage: alsa-driver Symptom: audio Symptom_AlsaPlaybackTest: ALSA playback test through plughw:PCH failed Symptom_Card: Вбудоване аудіо - HDA Intel PCH Symptom_DevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mik 2139 F.... pulseaudio /dev/snd/controlC1: mik 2139 F.... pulseaudio Symptom_Jack: Green Headphone Out, Front Symptom_Type: No sound at all Title: [W230SS, VIA VT1802, Green Headphone Out, Front] No sound at all UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/11/2014 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 4.6.5 dmi.board.asset.tag: Tag 12345 dmi.board.name: W230SS dmi.board.vendor: Notebook dmi.board.version: Not Applicable dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 9 dmi.chassis.vendor: Notebook dmi.chassis.version: N/A dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr4.6.5:bd02/11/2014:svnNotebook:pnW230SS:pvrNotApplicable:rvnNotebook:rnW230SS:rvrNotApplicable:cvnNotebook:ct9:cvrN/A: dmi.product.name: W230SS dmi.product.version: Not Applicable dmi.sys.vendor: Notebook mtime.conffile..etc.modprobe.d.alsa.base.conf: 2014-04-28T23:13:10.065027 To manage notifications about this bug go to: https://bugs.launchpad.net/alsa-driver/+bug/1313904/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp