Bug 207235
Summary: | Intel HD audio (snd_hda_intel) prevents power off after shutdown | ||
---|---|---|---|
Product: | [Fedora] Fedora | Reporter: | Keith G. Robertson-Turner <redhat-bugzilla> |
Component: | kernel | Assignee: | Kernel Maintainer List <kernel-maint> |
Status: | CLOSED CURRENTRELEASE | QA Contact: | Brian Brock <bbrock> |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | 5 | CC: | deisenst, wtogami |
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | i686 | ||
OS: | Linux | ||
Whiteboard: | NeedsRetesting | ||
Fixed In Version: | 2.6.20-1.2307.fc5 | Doc Type: | Bug Fix |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2007-03-25 23:02:36 UTC | Type: | --- |
Regression: | --- | Mount Type: | --- |
Documentation: | --- | CRM: | |
Verified Versions: | Category: | --- | |
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
Cloudforms Team: | --- | Target Upstream Version: | |
Embargoed: |
Description
Keith G. Robertson-Turner
2006-09-20 03:54:02 UTC
Note that I have since discovered that killing dbus doesn't always result in a successful acpi_power_off. I found this thread, which suggests it may be to do with the Intel HD audio driver module (snd_hda_intel) and thus related to dbus vie esd perhaps: http://tinyurl.com/zf48z (linuxpackages.net/forum) The OP in that thread has virtually identical hardware to me, which leads me to conclude that this is a good verification of my problem. I can confirm that rmmod'ing the above module does facilitate a successful acpi_power_off. So this is a kernel issue with the snd_hda_intel module, linked to dbus via the sound server (ESD in my case). Although I should add that I currently have not enabled ESD, yet the problem persists, Found this bug perusing dbus issues for FC5. An interesting aside: I do not have this issue. Booting automatically loads modules snd_hda_intel and snd_hda_codec, along with the host of sound modules they're dependent upon. kernel: kernel-2.6.16-1.2133_FC5 (06-June-2006) dbus: dbus-0.61-3.fc5.1 (05-May-2006) Shutting down always turns off the system's power. My motherboard has the Intel High Definition Audio (hda) built into its chipset. It is a FoxConn 945P7AA-8EKRS2, using a single processor (from dmesg, "CPU: Intel(R) Celeron(R) CPU 2.80GHz stepping 09"), and has an Intel 945P Northbridge and an ICH7R Southbridge. The sound chip (not thoroughly documented by any means in the motherboard's accompany- ing literature) I believe is a Realtek ALC880. Keith, do you think this is a "dbus" bug or a kernel bug? I'd guess it's the kernel driver. It's my understanding that if any hardware (or it's driver) does not react appropriately to ACPI calls, then you'll have problems shutting down. The fact that this *used* to work with an earlier incarnation of the kernel, suggests that the intel_hda driver has changed in some way that breaks that ACPI conformance. Then again, without any clues from the syslog, it's difficult to be sure. I guess I'd need to recompile the kernel, and turn on verbose debugging. I'm changing the component scope to "kernel" since it seems more likely. I hope that doesn't upset the assignee :) Reassigning bug to correct maintainer for kernel component. A new kernel update has been released (Version: 2.6.18-1.2200.fc5) based upon a new upstream kernel release. Please retest against this new kernel, as a large number of patches go into each upstream release, possibly including changes that may address this problem. This bug has been placed in NEEDINFO state. Due to the large volume of inactive bugs in bugzilla, if this bug is still in this state in two weeks time, it will be closed. Should this bug still be relevant after this period, the reporter can reopen the bug at any time. Any other users on the Cc: list of this bug can request that the bug be reopened by adding a comment to the bug. In the last few updates, some users upgrading from FC4->FC5 have reported that installing a kernel update has left their systems unbootable. If you have been affected by this problem please check you only have one version of device-mapper & lvm2 installed. See bug 207474 for further details. If this bug is a problem preventing you from installing the release this version is filed against, please see bug 169613. If this bug has been fixed, but you are now experiencing a different problem, please file a separate bug for the new problem. Thank you. This issue has been resolved by a new kernel release. Please close this bug. |