regression: sound/speakers not working after resume on HP nw8240

Note: this sound similar as bug 93650, just different HW (IBM R60), however that bug was closed as duplicate of older bug 80893.

Linux version 2.6.20-12-generic (root@vernadsky) (gcc version 4.1.2 (Ubuntu 4.1.2-0ubuntu4)) #2 SMP Sun Mar 18 03:07:14 UTC 2007

luka@lr:~$ tail -2 /proc/asound/oss/sndstat
Mixers:
0: Analog Devices AD1981B
luka@lr:~$ asoundconf list
Names of available sound cards:
ICH6
luka@lr:~$ cat /proc/interrupts
           CPU0
  0: 2886799 IO-APIC-edge timer
  1: 8272 IO-APIC-edge i8042
  7: 0 IO-APIC-edge parport0
  8: 4 IO-APIC-edge rtc
  9: 38622 IO-APIC-fasteoi acpi
 12: 272335 IO-APIC-edge i8042
 14: 215187 IO-APIC-edge libata
 15: 0 IO-APIC-edge libata
 16: 78505 IO-APIC-fasteoi eth0
 17: 1148379 IO-APIC-fasteoi uhci_hcd:usb2
 18: 2 IO-APIC-fasteoi uhci_hcd:usb3, yenta
 19: 3 IO-APIC-fasteoi ohci1394, sdhci:slot0, sdhci:slot1, sdhci:slot2
 20: 49560 IO-APIC-fasteoi uhci_hcd:usb1, ehci_hcd:usb4
 21: 0 IO-APIC-fasteoi tifm_7xx1
 22: 843650 IO-APIC-fasteoi Intel ICH6, ipw2200
NMI: 0
LOC: 2886562
ERR: 0
MIS: 0

This looks like same as bug 21574 that was fixed early in the Feisty cycle.

There are a number of bugs with similar symptoms, no sound after resume: bug #96230, bug #21574, bug# 94036. Noting them here in case they are related.

There is some more investigation findings reported here:

http://hpwiki.cactii.net/hpwiki/nw8240

The problem is still there in 2.6.22 (up-to-date gutsy).

It unfortunately appears that this bug is not yet resolved. Does this issue still exist in the Hardy Heron 8.04 LTS release?

If not so, this bug could possibly be marked as a duplicate of bug #80893.

However, if the issue still exists in the Hardy Heron 8.04 LTS release, Intrepid Ibex 8.10 Alpha2 is also scheduled for release today. It will appear at the following when available: http://www.ubuntu.com/testing/intrepid/alpha2 . It contains the actively developed 2.6.26 Ubuntu kernel. It would be great if someone could test this upcoming release via a LiveCD and verify if the issue still exists. If so, please include the appropriate debugging information as outlined at https://wiki.ubuntu.com/DebuggingSoundProblems . Thanks in advance.

Setting status 'Incomplete' for linux as per instructions on https://wiki.ubuntu.com/UbuntuBugDay/20080710. However bug is possible duplicate of closed bug #80893.

The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test:

1) If you are comfortable installing packages on your own, the linux-image-2.6.27-* package is currently available for you to install and test.

--or--

2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD.

Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback.

I do not have the HW anymore, but I can confirm that this problem was fixed already in Hardy, so it is actually duplicate.
Sorry for not getting back with this before.