Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: alsa-driver (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1323568
Title:
[Dell Precision M3800, Intel Haswell HDMI, Digital Out, HDMI] Sound
has wrong bitrate / pitch
Status in “alsa-driver” package in Ubuntu:
Confirmed
Bug description:
HDMI sound output to my U2414H Dell monitor happens at the wrong
bitrate, resulting in sound output at the wrong pitch.
This video demonstrates the problem:
https://www.youtube.com/watch?v=TLCw_-Dr1-8
(Interestingly the rate that youtube plays the video changes as well -
seconds count faster)
If I suspend and resume the computer, then this bug disappears. I
can't find any parameters in /proc/asound that show the incorrect bit
rate. This is a clean install of Ubuntu with 3.13.0-24-generic
will@prefect:~$ cat /proc/asound/cards
0 [HDMI ]: HDA-Intel - HDA Intel HDMI
HDA Intel HDMI at 0xf7a1c000 irq 52
1 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0xf7a18000 irq 53
2 [U0x46d0x809 ]: USB-Audio - USB Device 0x46d:0x809
USB Device 0x46d:0x809 at usb-0000:00:14.0-2.4.1, high
speed
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+dfsg-0ubuntu4
ProcVersionSignature: Ubuntu 3.13.0-24.47-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: will 2617 F.... pulseaudio
/dev/snd/controlC0: will 2617 F.... pulseaudio
/dev/snd/controlC1: will 2617 F.... pulseaudio
/dev/snd/pcmC1D0c: will 2617 F...m pulseaudio
CurrentDesktop: Unity
Date: Tue May 27 10:18:41 2014
InstallationDate: Installed on 2014-05-24 (2 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
PackageArchitecture: all
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:HDMI failed
Symptom_Card: Built-in Audio - HDA Intel HDMI
Symptom_Jack: Digital Out, HDMI
Symptom_Type: Underruns, dropouts, or "crackling" sound
Title: [Dell Precision M3800, Intel Haswell HDMI, Digital Out, HDMI]
Underruns, dropouts or crackling sound
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/06/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A03
dmi.board.name: Dell Precision M3800
dmi.board.vendor: Dell Inc.
dmi.board.version: A03
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: Not Specified
dmi.modalias:
dmi:bvnDellInc.:bvrA03:bd02/06/2014:svnDellInc.:pnDellPrecisionM3800:pvrA03:rvnDellInc.:rnDellPrecisionM3800:rvrA03:cvnDellInc.:ct8:cvrNotSpecified:
dmi.product.name: Dell Precision M3800
dmi.product.version: A03
dmi.sys.vendor: Dell Inc.
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