@unrud: Thanks for the tests. Also tested on 16.04.1 live - interestingly, the devices seem to be on /dev/i2c-9 there.
However, I think even SMBus isn't at fault. Digging through the logs I noticed I forgot to check the dmesg logs - seems like sometimes the BIOS touches the amp for some reason: [ 6.980350] i801_smbus 0000:00:1f.3: BIOS is accessing SMBus registers [ 6.980358] i801_smbus 0000:00:1f.3: Driver SMBus register access inhibited The issue is rather random (sometimes stays even after a restart, sometimes doesn't appear after sleep), but it appears that when BIOS stays away, init-headphone works. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1313904 Title: [W230SS, VIA VT1802, Green Headphone Out, Front] No sound after suspend/resume To manage notifications about this bug go to: https://bugs.launchpad.net/alsa-driver/+bug/1313904/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
