Blue screen

[jbarrow]

After reboot, the window server crashes on startup, displaying the blue screen. The only fix seems to be booting into single user mode and removing the drivers. I would not recommend installing these at this point.

This crash happens on my MBP, late 2010, with or without graphics switching enabled, with or without the adapter plugged in.

[Carlo]

jbarrow do you have any information from the kernel panic?

[jbarrow]

Back on my mac now.


This appears to be the valid part of system.log -

Jun 6 10:12:53 Josh-Barrows-MacBook-Pro loginwindow[48]: Login Window Started Security Agent
Jun 6 10:12:53 Josh-Barrows-MacBook-Pro SecurityAgent[286]: Echo enabled
Jun 6 10:12:54 Josh-Barrows-MacBook-Pro SecurityAgent[286]: Error: Mode change called with mode and hint not changed
Jun 6 10:12:54 Josh-Barrows-MacBook-Pro SecurityAgent[286]: SetFocusOn: Password field result = 1
Jun 6 10:12:56 Josh-Barrows-MacBook-Pro ReportCrash[295]: DebugSymbols was unable to start a spotlight query: spotlight is not responding or disabled.
Jun 6 10:12:56 Josh-Barrows-MacBook-Pro SecurityAgent[286]: kCGErrorFailure: _CGSLockWindow: Cannot synchronize window backing store
Jun 6 10:12:56 Josh-Barrows-MacBook-Pro SecurityAgent[286]: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
Jun 6 10:12:56 Josh-Barrows-MacBook-Pro SecurityAgent[286]: kCGErrorFailure: _CGSLockWindow: Cannot synchronize window backing store
Jun 6 10:12:56: --- last message repeated 1 time ---
Jun 6 10:12:56 Josh-Barrows-MacBook-Pro SecurityAgent[286]: HIToolbox: received notification of WindowServer event port death.
Jun 6 10:12:56 Josh-Barrows-MacBook-Pro SecurityAgent[286]: port matched the WindowServer port created in BindCGSToRunLoop
Jun 6 10:12:56 Josh-Barrows-MacBook-Pro SecurityAgent[286]: kCGErrorFailure: _CGSLockWindow: Cannot synchronize window backing store
Jun 6 10:12:56 Josh-Barrows-MacBook-Pro ManagedClient[284]: HIToolbox: received notification of WindowServer event port death.
Jun 6 10:12:56 Josh-Barrows-MacBook-Pro SecurityAgent[286]: kCGErrorFailure: _CGSLockWindow: Cannot synchronize window backing store
Jun 6 10:12:56 Josh-Barrows-MacBook-Pro ManagedClient[284]: port matched the WindowServer port created in BindCGSToRunLoop
Jun 6 10:12:56 Josh-Barrows-MacBook-Pro com.apple.SecurityAgent.00000000-0000-0000-0000-0000000186A4[286]: CAView: failed to lock device (error 1000)
Jun 6 10:12:56: --- last message repeated 2 times ---
Jun 6 10:12:56 Josh-Barrows-MacBook-Pro SecurityAgent[286]: (ipc/send) invalid destination port: CGSGetWorkspaceWindowCountWithOptionsAndTags
Jun 6 10:12:56 Josh-Barrows-MacBook-Pro com.apple.loginwindow[48]: 2011-06-06 10:12:56.875 ManagedClient[284:207] HIToolbox: received notification of WindowServer event port death.
Jun 6 10:12:56 Josh-Barrows-MacBook-Pro com.apple.launchd[1] (com.apple.WindowServer[255]): Job appears to have crashed: Segmentation fault: 11
Jun 6 10:12:56 Josh-Barrows-MacBook-Pro loginwindow[298]: Login Window Application Started
Jun 6 10:12:57 Josh-Barrows-MacBook-Pro ReportCrash[295]: Saved crash report for WindowServer[255] version ??? (???) to /Library/Logs/DiagnosticReports/WindowServer_2011-06-06-101257_localhost.crash
Jun 6 10:12:57 Josh-Barrows-MacBook-Pro ReportCrash[295]: Removing excessive log: /Library/Logs/DiagnosticReports/WindowServer_2011-06-06-092351_localhost.crash
Jun 6 10:12:57 Josh-Barrows-MacBook-Pro loginwindow[298]: **DMPROXY** Found `/System/Library/CoreServices/DMProxy'.
Jun 6 10:12:57 Josh-Barrows-MacBook-Pro com.apple.launchctl.LoginWindow[301]: com.apple.findmymacmessenger: Already loaded
Jun 6 10:12:57 Josh-Barrows-MacBook-Pro loginwindow[298]: Login Window Started Security Agent
Jun 6 10:12:57 Josh-Barrows-MacBook-Pro DisplayLinkUserAgent[307]: SCNetworkReachabilityCreateWithAddress[Pair] called with invalid address family 1
Jun 6 10:12:57 Josh-Barrows-MacBook-Pro SecurityAgent[308]: Echo enabled
Jun 6 10:12:57 Josh-Barrows-MacBook-Pro SecurityAgent[308]: Error: Mode change called with mode and hint not changed
Jun 6 10:12:57 Josh-Barrows-MacBook-Pro SecurityAgent[308]: SetFocusOn: Password field result = 1
Jun 6 10:13:00 Josh-Barrows-MacBook-Pro SecurityAgent[308]: kCGErrorFailure: _CGSLockWindow: Cannot synchronize window backing store
Jun 6 10:13:00 Josh-Barrows-MacBook-Pro SecurityAgent[308]: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
Jun 6 10:13:00 Josh-Barrows-MacBook-Pro SecurityAgent[308]: kCGErrorFailure: _CGSLockWindow: Cannot synchronize window backing store
Jun 6 10:13:00 Josh-Barrows-MacBook-Pro SecurityAgent[308]: HIToolbox: received notification of WindowServer event port death.
Jun 6 10:13:00 Josh-Barrows-MacBook-Pro SecurityAgent[308]: port matched the WindowServer port created in BindCGSToRunLoop
Jun 6 10:13:00 Josh-Barrows-MacBook-Pro SecurityAgent[308]: kCGErrorFailure: _CGSLockWindow: Cannot synchronize window backing store
Jun 6 10:13:00: --- last message repeated 1 time ---
Jun 6 10:13:00 Josh-Barrows-MacBook-Pro ManagedClient[302]: HIToolbox: received notification of WindowServer event port death.
Jun 6 10:13:00 Josh-Barrows-MacBook-Pro SecurityAgent[308]: kCGErrorFailure: _CGSLockWindow: Cannot synchronize window backing store


I would absolutely love to provide the WindowServer crash log, but the forum is prohibiting me from posting that much text, or upload a text file that large (it's 33k).

[Carlo]

Originally Posted by jbarrow

I would absolutely love to provide the WindowServer crash log, but the forum is prohibiting me from posting that much text, or upload a text file that large (it's 33k).

Thank you very much for your help. It really looks like a "blue" screen as opposed to a kernel panic. The Window Server can't start. Could you please post the crash using http://www.displaylink.com/support/ask_question.php
If at all possible would be great to have also the full output from http://www.displaylink.com/support/ticket.php?id=269

A workaround could be to delete the DisplayLinkGA.plugin folder from /System/Library/Extensions after the installation and before rebooting.

Thank you again for helping with this big cat.
Carlo

[jbarrow]

Here is the DisplayLink Information.zip file that the tool generated.

[jbarrow]

The proposed work-around didn't work, but thanks for the effort. I'll continue waiting patiently for the next beta version, I suppose, unless you have any other suggestions.

[Carlo]

Thank you very much for all the information, we have some leads to try in a lab in WWDC today.

[jbarrow]

Excellent. Do post here as soon as you find out something, please.

[Carlo]

I don't have particularly good news: tried on a clean Mac Pro and a MBP at WWDC and all working. Also working fine on my test MacBook. Next step is to try to reproduce the issue on more machines but we already tested on one very, very similar to yours.
The only thing I can think of is some machine specific problem with the 64bit kernel, maybe in conjunction with a specific display set up. We do try 64bit but test more the default configuration.

Will keep you updated.

[jbarrow]

That *is* bad news. Over the weekend, I may try a clean install if something else doesn't come up before hand. Thanks for the updates, Carlo.