Public bug reported:
My workflow to get the issue:
- start the Laptop (without HDMI cable plugged)
- after login go into suspend (to RAM)
- wake up
- plug in HDMI
- audio control does not show up HDMI/Display Port
To solve this i had to run 'sudo alsa force-reload'. But sometimes this
also will fail.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-20.32-generic 3.2.12
Uname: Linux 3.2.0-20-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.95-0ubuntu1
Architecture: amd64
Date: Sun Mar 25 17:33:40 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301)
PackageArchitecture: all
SourcePackage: alsa-driver
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/31/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 4.6.4
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: W150HRM
dmi.board.vendor: CLEVO CO.
dmi.board.version: N/A
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 9
dmi.chassis.vendor: CLEVO CO.
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr4.6.4:bd05/31/2011:svnCLEVOCO.:pnW150HRM:pvrN/A:rvnCLEVOCO.:rnW150HRM:rvrN/A:cvnCLEVOCO.:ct9:cvrN/A:
dmi.product.name: W150HRM
dmi.product.version: N/A
dmi.sys.vendor: CLEVO CO.
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise
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https://bugs.launchpad.net/bugs/964611
Title:
HDMI audio not available after suspend until 'alsa force-reload'
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