Only audio over HDMI in certain modes
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
alsa-driver (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
I've hooked up my computer (Ubuntu server 14.04 LTS) to my receiver which in turn is hooked up to my TV.
The problem is that audio only works on certain modes. For instance, if I set the mode to 1080i60 using xrandr, audio works fine. The same goes for 1080p25. However, when I increase the framerate on the progressive scans on the 1920x1080 resolution the audio switches off. E.g. 1080p60 (the preferred mode) shows the video just fine, but there's no audio.
When the computer is directly connected to the TV I'm able to play audio despite using the preferred 1080p60 mode on the built-in TV speakers.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+
ProcVersionSign
Uname: Linux 3.13.0-32-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
CurrentDesktop: Unity
Date: Mon Jul 21 21:10:27 2014
InstallationDate: Installed on 2013-01-10 (556 days ago)
InstallationMedia: Ubuntu-Server 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120817.3)
PackageArchitec
SourcePackage: alsa-driver
Symptom: audio
Symptom_
Symptom_Card: Built-in Audio - HDA Intel PCH
Symptom_Jack: Digital Out, HDMI
Symptom_Type: None of the above
Title: [To be filled by O.E.M., Intel PantherPoint HDMI, Digital Out, HDMI] Playback problem
UpgradeStatus: Upgraded to trusty on 2014-07-21 (0 days ago)
dmi.bios.date: 03/23/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F4
dmi.board.
dmi.board.name: B75M-D3H
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.
dmi.chassis.type: 3
dmi.chassis.vendor: Gigabyte Technology Co., Ltd.
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: To be filled by O.E.M.
dmi.product.
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
you have to ask the graphic driver developer since the graphic driver have the abillity todisable hdmi audio when bandwidth is not enough