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Created attachment 1208330 [details] alsa info output Description of problem: From cold boot, during Gnome startup two short bursts of crackling noise come from internal speakers, there's a second or less between them. Version-Release number of selected component (if applicable): Fedora 24 (Workstation Edition) Kernel release: 4.7.5-200.fc24.x86_64 How reproducible: Every time on boot. Steps to Reproduce: 1. Turn on computer 2. Wait for DE startup Actual results: Hearing crackling sound. Expected results: Absolute silence (or Gnome startup sound, if that should play - not sure about that). Additional info: Lenovo Thinkpad 13 (20GJ001HMH) Same issue occurs on Ubuntu 16.04.1 Live ISO.
Issue still present in Fedora 25. On Ubuntu 16.10 sound crackling is not so loud on start.
Created attachment 1222894 [details] alsa info from Fedora 25
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 25 kernel bugs. Fedora 25 has now been rebased to 4.9.3-200.fc25. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 26, and are still experiencing this issue, please change the version to Fedora 26. If you experience different issues, please open a new bug report for those.
Issue is still present on kernel 4.9.3-200.fc25.x86_64 .
*********** MASS BUG UPDATE ************** We apologize for the inconvenience. There is a large number of bugs to go through and several of them have gone stale. Due to this, we are doing a mass bug update across all of the Fedora 25 kernel bugs. Fedora 25 has now been rebased to 4.10.9-200.fc25. Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel. If you have moved on to Fedora 26, and are still experiencing this issue, please change the version to Fedora 26. If you experience different issues, please open a new bug report for those.
*********** MASS BUG UPDATE ************** This bug is being closed with INSUFFICIENT_DATA as there has not been a response in 2 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.