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List:       linux-usb-users
Subject:    [Linux-usb-users] USB devices dead after APM suspend on kernel 2.6.14
From:       Paulo M C =?iso-8859-1?Q?Arag=E3o?= <yagpaulo-listas () yahoo ! com>
Date:       2005-11-30 22:25:16
Message-ID: 20051130222516.GB3755 () localhost ! localdomain
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Hi,

I have Debian sid, kernel 2.6.14-2-686, installed on a Fujitsu Lifebook E342 
laptop. When it comes back from APM suspend, the USB devices (a 4-port hub and 
a mouse) are not brought up, and lsusb (or any access to /proc/bus/usb) hangs.  
This doesn't happen with a 2.6.8-2-686 kernel which I also have installed. If 
my memory serves me right, this problem started with 2.6.14 kernels.

Could anybody give me a hand on how to properly configure APM/USB so that 
suspend works as expected on a 2.6.14-2-686 kernel ? I've googled a lot around 
this theme but confess my inability and ignorance to resolve the problem.

I'm unsure of what info would be important to analyze this problem. Please tell 
me if something else is necessary.

Thanks a lot
Paulo

From /var/log/syslog after APM suspend:

Nov 29 02:46:07 localhost kernel: apm: BIOS version 1.2 Flags 0x03 (Driver 
version 1.16ac)
Nov 29 02:46:08 localhost kernel: usb 1-1.4: no poweroff yet, suspending instead
Nov 29 02:46:08 localhost kernel: usb 1-1: no poweroff yet, suspending instead
Nov 29 02:46:08 localhost kernel: usb usb1: no poweroff yet, suspending instead
Nov 29 02:46:25 localhost kernel: PCI: Found IRQ 9 for device 0000:00:07.2
Nov 29 02:46:25 localhost kernel: PCI: Found IRQ 9 for device 0000:00:07.2
Nov 29 02:46:25 localhost kernel: PCI: Found IRQ 9 for device 0000:00:13.0
Nov 29 02:46:25 localhost kernel: PCI: Found IRQ 9 for device 0000:00:13.1
Nov 29 02:46:25 localhost kernel: eth0: lost link beat
Nov 29 02:46:25 localhost kernel: usb 1-1: USB disconnect, address 4
Nov 29 02:46:25 localhost kernel: usb 1-1.4: USB disconnect, address 6
Nov 29 02:46:26 localhost kernel: eth0: found link beat
Nov 29 02:46:26 localhost kernel: eth0: autonegotiation complete: 100baseT-FD \
selected

uname -a:

Linux cortazar 2.6.14-2-686 #1 Sat Nov 26 13:10:11 UTC 2005 i686 GNU/Linux

lsusb:

Bus 001 Device 003: ID 045e:0084 Microsoft Corp. 
Bus 001 Device 002: ID 05e3:0660 Genesys Logic, Inc. USB 2.0 Hub
Bus 001 Device 001: ID 0000:0000  

lspci:

0000:00:00.0 Host bridge: Intel Corporation 440BX/ZX/DX - 82443BX/ZX/DX Host bridge \
(AGP disabled) (rev 03) 0000:00:07.0 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 \
ISA (rev 02) 0000:00:07.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE \
(rev 01) 0000:00:07.2 USB Controller: Intel Corporation 82371AB/EB/MB PIIX4 USB (rev \
01) 0000:00:07.3 Bridge: Intel Corporation 82371AB/EB/MB PIIX4 ACPI (rev 02)
0000:00:10.0 Communication controller: Agere Systems 56k WinModem (rev 01)
0000:00:13.0 CardBus bridge: Texas Instruments PCI1221
0000:00:13.1 CardBus bridge: Texas Instruments PCI1221
0000:00:14.0 VGA compatible controller: Trident Microsystems Cyber 9388 (rev d3)

dpkg -l udev:

ii  udev           0.076-3        /dev/ and hotplug management daemon


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