MP hangs when getting out of standby (1 Viewer)

[Wintermute42]

I tried out the fix by using the alternate configuration.exe but it the bug occured today again at my system.

 

[Wintermute42]

So it does work for anyone else?
It's not always on my system, but shows every now and then.

After a wakeup if the screen stays blank, I get these errors in the log:

2009-02-21 15:11:43.796875 [Info.][MPMain]: Main: WM_POWERBROADCAST: 18
2009-02-21 15:11:43.796875 [Info.][MPMain]: Main: Windows has resumed from standby or hibernate mode to handle a requested event
2009-02-21 15:11:43.796875 [Info.][MPMain]: Main: OnResumeAutomatic - Starting recorder
2009-02-21 15:11:43.796875 [Info.][MPMain]: TvCardCollection: TVPlugin detected -> no TVE2 card setup
2009-02-21 15:11:43.796875 [Info.][MPMain]: Recorder: start
2009-02-21 15:11:43.796875 [Info.][CommandProcessor]: Commandprocessor: Starting
2009-02-21 15:11:44.250000 [Info.][MPMain]: Main: OnResumeAutomatic - Done
2009-02-21 15:11:44.250000 [Info.][MPMain]: Main: useS3Hack enabled, calling OnResume() on automatic resume
2009-02-21 15:11:44.250000 [Info.][MPMain]: Exception   :System.NullReferenceException: Object reference not set to an instance of an object.
   at MediaPortal.GUI.Library.GUIGraphicsContext.set_BlankScreen(Boolean value)
   at MediaPortal.GUI.Library.GUIGraphicsContext.ResetLastActivity()
   at MediaPortalApp.OnResume()
   at MediaPortalApp.WndProc(Message& msg)
2009-02-21 15:11:44.250000 [Info.][MPMain]: Exception   :Object reference not set to an instance of an object.
2009-02-21 15:11:44.250000 [Info.][MPMain]:   site      :Void set_BlankScreen(Boolean)
2009-02-21 15:11:44.250000 [Info.][MPMain]:   source    :Core
2009-02-21 15:11:44.250000 [Info.][MPMain]:   stacktrace:   at MediaPortal.GUI.Library.GUIGraphicsContext.set_BlankScreen(Boolean value)
   at MediaPortal.GUI.Library.GUIGraphicsContext.ResetLastActivity()
   at MediaPortalApp.OnResume()
   at MediaPortalApp.WndProc(Message& msg)
2009-02-21 15:12:09.484375 [Info.][MPMain]: TexturePacker: disposing texture:1999

 

[dm15644]

Hi Wintermute42,

I had similar messages, and while I also don't know exactly what the error is I solved it by automatically closing restarting MP after wakeup. I'm using StartOnWake for this.

Cheers,

jayrock

 

[Wintermute42]

Sorry for the late answer..

Hm, I might try that, although sometimes the MP crashes with a dialog box with the exception info popping up - also in this cases the MP watchdogs starts.
I would prefer a clean solution for this, a fix in the MP software.

 

[dm15644]

You can disable the watcdog messages in configuration.

/jayrock

 

[Malingo]

2008-12-23 02:59:19.593750 [Info.][MPMain]: Main: WM_POWERBROADCAST: 18

This is the line giving the hint of what is wrong. Usually it is followed by

WM_POWERBROADCAST: 7

Which "wakes up" MP. Since some (buggy) mainboards (mine is one example), only send the WM_POWERBROADCAST: 18 after overnight standby, we have to wake up MP on this event.

Sorry for resurrecting this old thread, but I just read up on all this stuff for some project I am doing, and it seems that only sending WM_POWERBROADCAST: 18 is correct if the computer is waking up automatically (For example to start a record).

WM_POWERBROADCAST: 7 only should be send if the computer wakes up on a user event. So for example this message is sent when a user presses a button, but not if the computer wakes up automatically.
WM_POWERBROADCAST: 18 will be sent every time, be it the computer wakes up automatically, or by user input.

Maybe I am overlooking something, but isn't only sending the first message correct if the wakeup is automatic?

Here is the info on MSDN: WM_POWERBROADCAST Message (Windows)

 

[Seidelin]

Sure it is correct, but on some machines MP hangs in some situations where only 18 is sent. Therefore this workaround.

 

[johnlc]

Last autumn I started to get all kinds of trouble, waking up - I cannot remember the revision it started in.
I tried every single workaround but to no avail.

The one day in January I gave the network card a fixed ip address instead of DHCP, since then there has been absolutely no issues with "wake-up"

At least it's woth giving a try if you have wake up issues.

 

[coopers]

Hi Folks,

Can I confirm that this "hack" is the option that is now released and available in the MP 1.0.2 config dialog:
"apply workaround to fix MP freezing after standby on some systems"?

thanks

 

[globaldonkey]

Yep, that's it.