[Dell Inspiron 3442] HDMI audio hotplug detection is not working on 14.04.1

[Po-Hsu Lin]

CID: 201402-14675 Dell Inspiron 3442

The HDMI audio detection does not work on this system with 14.04 + update (3.13.0-39)

Steps:
1. Install 14.04 + update (3.13.0-39), boot to desktop
2. Connect an external monitor to the HDMI port

Expected result:
* External display available, HDMI audio output option available

Actual result:
* Only the external display will be available, no HDMI audio output.

Debugging info:
It works with cold-plug.
Also, if you play a wav file by using "aplay -D hdmi:HDMI,0 test.wav" command, it will make the output option available in "Sound Settings"

ubuntu@201402-14675:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: HDMI [HDA Intel HDMI], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 7: HDMI 1 [HDMI 1]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 0: HDMI [HDA Intel HDMI], device 8: HDMI 2 [HDMI 2]
  Subdevices: 1/1
  Subdevice #0: subdevice #0
card 1: PCH [HDA Intel PCH], device 0: ALC255 Analog [ALC255 Analog]
  Subdevices: 1/1
  Subdevice #0: subdevice #0

Adding "options snd-hda-intel jackpoll_ms=500" into /etc/modprobe.d/alsa-base.conf as stated in [1] could make the detection work with hotplug.

Alsa-info: http://www.alsa-project.org/db/?f=a3e7fabf6a0c1e35d511e610dfdbe7b9d2b305f6

[1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1383997/comments/5

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-39-generic 3.13.0-39.66
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
Uname: Linux 3.13.0-39-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ubuntu 1527 F.... pulseaudio
 /dev/snd/controlC1: ubuntu 1527 F.... pulseaudio
 /dev/snd/pcmC1D0c: ubuntu 1527 F...m pulseaudio
CRDA:
 country TW:
  (2402 - 2472 @ 40), (3, 27)
  (5270 - 5330 @ 40), (3, 17), DFS
  (5735 - 5815 @ 40), (3, 30)
CurrentDesktop: Unity
Date: Tue Nov 18 02:54:12 2014
HibernationDevice: RESUME=UUID=6a176ac4-beb1-4a03-99e6-fd6b53e8b230
InstallationDate: Installed on 2014-11-18 (0 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: Dell Inc. Inspiron 3442
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-39-generic root=UUID=e3da6884-4737-4003-b0ae-efab9daa5157 ro quiet splash vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.13.0-39-generic N/A
 linux-backports-modules-3.13.0-39-generic N/A
 linux-firmware 1.127.8
SourcePackage: linux
StagingDrivers: rts5139
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/24/2014
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A00
dmi.board.name: 00G010
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: Not Specified
dmi.modalias: dmi:bvnDellInc.:bvrA00:bd02/24/2014:svnDellInc.:pnInspiron3442:pvrNotSpecified:rvnDellInc.:rn00G010:rvrA00:cvnDellInc.:ct8:cvrNotSpecified:
dmi.product.name: Inspiron 3442
dmi.product.version: Not Specified
dmi.sys.vendor: Dell Inc.

[Brad Figg (brad-figg)]

This change was made by a bot.

[Po-Hsu Lin (cypressyew)]

Also affect 201306-13869 Dell Inspiron 7737

Simliar issue could be found in bug 1383997