Bug 1313849

Summary: No sound after upgrading to kernel-4.4.2-301
Product: [Fedora] Fedora Reporter: mvetter <marcusvetter.gbugzilla>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 23CC: gansalmon, itamar, jonathan, kernel-maint, labbott, madhu.chinakonda, marcusvetter.gbugzilla, mchehab, mjg59
Target Milestone: ---Keywords: Regression
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2016-03-02 17:46:43 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1313434    
Bug Blocks:    

Description mvetter 2016-03-02 12:44:22 UTC 
Description of problem:
No sound after upgrading to kernel-4.4.2-301.fc23.x86_64

How reproducible:
Always.

Steps to Reproduce:
1. upgrade to kernel-4.4.2-301 from kernel-4.3.5-300
2. cold start twice
3. test speakers via gnome control panel 

Actual results:
No sound.

Expected results:
Sound.

Additional info:

Downgrading to kernel-4.3.5-300 and doing cold start twice restores sound.

machine: Dell XPS 13 (early 2015) with A07 BIOS

lspci:
00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Broadwell-U Integrated Graphics (rev 09)
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
00:04.0 Signal processing controller: Intel Corporation Broadwell-U Camarillo Device (rev 09)
00:14.0 USB controller: Intel Corporation Wildcat Point-LP USB xHCI Controller (rev 03)
00:16.0 Communication controller: Intel Corporation Wildcat Point-LP MEI Controller #1 (rev 03)
00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #1 (rev e3)
00:1c.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #4 (rev e3)
00:1d.0 USB controller: Intel Corporation Wildcat Point-LP USB EHCI Controller (rev 03)
00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation Wildcat Point-LP SATA Controller [AHCI Mode] (rev 03)
00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller (rev 03)
00:1f.6 Signal processing controller: Intel Corporation Wildcat Point-LP Thermal Management Controller (rev 03)
01:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS5249 PCI Express Card Reader (rev 01)
02:00.0 Network controller: Intel Corporation Wireless 7265 (rev 48)
Comment 1 mvetter 2016-03-02 12:50:39 UTC 
Related to Bug 1313434
https://bugzilla.redhat.com/show_bug.cgi?id=1313434
Comment 2 mvetter 2016-03-02 13:00:29 UTC 
This might also be related to previous issues with sound on Dell XPS 13, due to problems with I2S mode and/or HDA mode.

https://bugzilla.redhat.com/show_bug.cgi?id=1216185
https://bugzilla.redhat.com/show_bug.cgi?id=1255070
  
Why does this keep on happening ?
Comment 3 Laura Abbott 2016-03-02 17:46:43 UTC 

*** This bug has been marked as a duplicate of bug 1313434 ***