Bug#491057: linux-image-2.6.25-2-686: Dell Latitude D610 laptop doesn't resume with 2.6.25

Package: linux-image-2.6.25-2-686
Version: 2.6.25-6
Severity: important

Hi,

My Dell laptop, a Latitude D610, no longer resumes with kernel 2.6.25.

During resume, there's some hard disk activity, but the screen never
turns on. I don't think that the system started normally (ie, that it's
only a screen problem) because pressing the power button shortly doesn't
power down the laptop.

It worked fine with linux-image-2.6.24-1-686 2.6.24-7. It also fails to
work with linux-image-2.6.26-rc9-686
2.6.26~rc9-1~experimental.1~snapshot.11825.

lspci:
00:00.0 Host bridge: Intel Corporation Mobile 915GM/PM/GMS/910GML
Express Processor to DRAM Controller (rev 03)
00:01.0 PCI bridge: Intel Corporation Mobile 915GM/PM Express PCI
Express Root Port (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) PCI Express Port 1 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) USB UHCI #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) USB UHCI #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) USB UHCI #3 (rev 03)
00:1d.3 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) USB UHCI #4 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801FB/FBM/FR/FW/FRW (ICH6
Family) USB2 EHCI Controller (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev d3)
00:1e.2 Multimedia audio controller: Intel Corporation
82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Audio Controller (rev 03)
00:1f.0 ISA bridge: Intel Corporation 82801FBM (ICH6M) LPC Interface
Bridge (rev 03)
00:1f.2 IDE interface: Intel Corporation 82801FBM (ICH6M) SATA
Controller (rev 03)
01:00.0 VGA compatible controller: ATI Technologies Inc M22 [Mobility
Radeon X300]
02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5751
Gigabit Ethernet PCI Express (rev 01)
03:01.0 CardBus bridge: Texas Instruments PCI6515 Cardbus Controller
03:01.5 Communication controller: Texas Instruments PCI6515 SmartCard
Controller
03:03.0 Network controller: Intel Corporation PRO/Wireless 2200BG
Network Connection (rev 05)

-- Package-specific info:

-- System Information:
Debian Release: lenny/sid
APT prefers testing
APT policy: (990, 'testing'), (700, 'unstable'), (500, 'stable'), (1, 'experimental')
Architecture: i386 (i686)

Kernel: Linux 2.6.26-rc9-686 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages linux-image-2.6.25-2-686 depends on:
ii debconf [debconf-2.0] 1.5.22 Debian configuration management sy
ii initramfs-tools [linux-initra 0.92e tools for generating an initramfs
ii module-init-tools 3.4-1 tools for managing Linux kernel mo

Versions of packages linux-image-2.6.25-2-686 recommends:
ii libc6-i686 2.7-10 GNU C Library: Shared libraries [i

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reassign 491057 acpi-support 0.109-5
clone 491057 -1
reassign -1 pm-utils 1.1.2.3-1
thanks

On 16/07/08 at 10:04 +0200, Lucas Nussbaum wrote:
> Package: linux-image-2.6.25-2-686
> Version: 2.6.25-6
> Severity: important
>
> Hi,
>
> My Dell laptop, a Latitude D610, no longer resumes with kernel 2.6.25.
>
> During resume, there's some hard disk activity, but the screen never
> turns on. I don't think that the system started normally (ie, that it's
> only a screen problem) because pressing the power button shortly doesn't
> power down the laptop.
>
> It worked fine with linux-image-2.6.24-1-686 2.6.24-7. It also fails to
> work with linux-image-2.6.26-rc9-686
> 2.6.26~rc9-1~experimental.1~snapshot.11825.

After more investigation using 2.6.26-rc9:

I could suspend and resume using acpi-support's legacy mode. The trick
is to shutdown alsa (which acpi-support legacy mode does), and then
add the following modules to the exclude list: snd_intel8x0
snd_ac97_codec

It should probably be investigated whether those modules should be added
in some blacklist in acpi-support (I haven't tested whether snd_intel8x0
or snd_ac97_codec is at fault). (that's why I'm reassigning to
acpi-support)

I couldn't get hal+pm-utils to work. Apparently, pm-utils doesn't
shutdown alsa, so I can't remove the module. Even after shutting down
alsa, killing mixer_applet2, and removing the modules manually, the
laptop suspends, but doesn't resume (short disk activity, then nothing),
when suspended using pm-suspend.
--
| Lucas Nussbaum
| lucas@lucas-nussbaum.net http://www.lucas-nussbaum.net/ |
| jabber: lucas@nussbaum.fr GPG: 1024D/023B3F4F |

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On Thu, 17 Jul 2008, Lucas Nussbaum wrote:
> reassign 491057 acpi-support 0.109-5
> clone 491057 -1
> reassign -1 pm-utils 1.1.2.3-1
> thanks

Usually, suspend/resume should not require anything from userspace. The
fact that some operations ("alsa shutdown") have to be done from userspace
could be considered as a kernel bug AFAIK.

So I don't understand why you don't leave the bug open against the
kernel... in particular when it's clearly a regression.

Cheers,
--
Raphaël Hertzog

Le best-seller français mis à jour pour Debian Etch :
http://www.ouaza.com/livre/admin-debian/

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On 18/07/08 at 09:23 +0200, Raphael Hertzog wrote:
> On Thu, 17 Jul 2008, Lucas Nussbaum wrote:
> > reassign 491057 acpi-support 0.109-5
> > clone 491057 -1
> > reassign -1 pm-utils 1.1.2.3-1
> > thanks
>
> Usually, suspend/resume should not require anything from userspace. The
> fact that some operations ("alsa shutdown") have to be done from userspace
> could be considered as a kernel bug AFAIK.
>
> So I don't understand why you don't leave the bug open against the
> kernel... in particular when it's clearly a regression.

I'm not sure if there's a kernel "policy" on "modules should not
break suspend/resume". If there is, yes, it's a kernel bug that
snd_intel8x0 or snd_ac97_codec break suspend.
--
| Lucas Nussbaum
| lucas@lucas-nussbaum.net http://www.lucas-nussbaum.net/ |
| jabber: lucas@nussbaum.fr GPG: 1024D/023B3F4F |

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Bug#491057: linux-image-2.6.25-2-686: Dell Latitude D610 laptop doesn't resume with 2.6.25 - Debian

Thread: Bug#491057: linux-image-2.6.25-2-686: Dell Latitude D610 laptop doesn't resume with 2.6.25

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