http://bugzilla.kernel.org/show_bug.cgi?id=10431
Summary: Docking problems with Sony Vaio VGN SZ483N laptop
Product: ACPI
Version: 2.5
KernelVersion: 2.6.25-rc8
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Config-Hotplug
AssignedTo: [EMAIL PROTECTED]
ReportedBy: [EMAIL PROTECTED]
CC: [EMAIL PROTECTED]
Latest working kernel version: None
Earliest failing kernel version: 2.6.25-rc8
Distribution: Ubuntu Hardy Heron (8.04) Beta. Also fails with vanilla kernel
Hardware Environment: Sony Vaio VGN SZ483N laptop + the corresponding docking
station
Software Environment: N/A
Problem Description:
I compiled the kernel from git following instructions from here:
https://wiki.ubuntu.com/KernelTeam/GitKernelBuild
Scenario 1: I boot the machine outside the dock. If I now dock it the ethernet
adapter on the docking station is not recognized.
Scenario 2: I boot the machine on the dock. The ethernet adapter on the docking
station is recognized. If I now undock after pressing the undock button and
redock again the ethernet adapter is not recognized.
Scenario 3: I boot the machine on the dock. The ethernet adapter on the docking
station is recognized. If I now undock without pressing the undock button then
the machine hangs and requires a hard reset.
Scenario 4: I boot the machine outside the dock and suspend it. If I now place
it on the dock and resume then the ethernet adapter on the dock is recognized.
Steps to reproduce:
As above
Docking and undocking works flawlessly under Windows Vista.
The same buggy behavior is observed under Freebsd (see
http://lists.freebsd.org/pipermail/freebsd-acpi/2008-March/004693.html). On the
freebsd-mobile mailing list it was suggested that the \_SB.DOCK._STA method
always seems to return zero (i.e. dock status method indicates that the system
is undocked all the time) (see
http://lists.freebsd.org/pipermail/freebsd-acpi/2008-March/004699.html).
The attached script dock.sh scans the pci bus and powers them on. This seems to
restore network connectivity after a redock but the in use LED on the dock does
not light up. Furthermore /sys/devices/platform/dock.0/docked still contains a
0. Some discussion about the script can be found at
http://ubuntuforums.org/showthread.php?t=666757
Please let me know if you need any further information.
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