Today I was moving my (running) computer a bit to fix my somehow-broken external hard drive. In the end I could fix my hard drive but while moving my computer back to it's original place my DisplayPort-Cable was disconnected for a moment.
This caused obviously Windows and DisplayFusion to detect my other two monitors which were both still connected.

After recognizing this I plugged back in the DisplayPort-cable and all my monitors were back working. Unfortunately my right monitor ( #3 ), which is not the monitor that is connected via DisplayPort refuses to show me my saved taskbar shortcuts.

I thought they were somehow disabled, so I changed the options via the taskbars contextmenu to "Automatic", then "Disabled", then "Left", and finally "Right" - but DF still refuses to show them. Even after duplicating all shortcuts from monitor #1 to monitor #3 didn't worked out.



You can also barely see my monitor layout which is:

- Monitor #1 ( left ) which is the monitor that is connected via DisplayPort.
- Monitor #2 ( center - primary monitor ), connected via DVI.
- Monitor #3 ( right ), also connected via DVI.

I'm wondering why DF refuses to show the shortcuts on monitor #3, as it was fully working all the time. I'd understand if DF refuses to show them on monitor #1, but on #3 ? Sounds like DF wasn't re-arranging the taskbar properly after monitor #1 was back connected.

However the problem could be fixed by restarting DisplayFusion.

Yep. I can test it again if it helps you finding the source of the issue.

I could reproduce the issue several times and came up with different results depending how fast or slow the cable was plugged in again. Maybe it's important to notice that I'm unplugging the cable directly on my graphics card, not the cable that is plugged in right to the monitor.

So I unplugged the cable for about 30secs and everything was fine, except that the taskbar shortcuts were gone after the monitor was unplugged but luckily they're back again after I plugged the cable in.

The other result was like mentioned in my initial post when I'm unplugging the cable for just about a second or less: The shortcuts disappeared and were completely gone even when I was plugging in the cable again. DisplayFusion takes a while to "recognize" the new situation and finally starts rendering the taskbar.

As already mentioned my monitor setup is like this:

Monitor #1 - left, the display that gets unplugged.
Monitor #2 - center, primary display.
Monitor #3 - right, the display with the issues.

When the left monitor ( #1 ) is unplugged the monitor layout becomes something like this ( which makes a lot of sense IMO ):

Monitor #0, former #1 - left, not plugged in <-- not showing up, why shouldn't it ?
Monitor #1 - center, still primary monitor
Monitor #2 - right, the missing-shortcuts display

I guess the source of this problem can be tracked down to a method that could potentially be responsible for rendering the taskbars and shortcuts which may be lagging behind as the re-plugging was too fast. This causes something like that DisplayFusion assumes that my right monitor, which has temporary ID #2 ( the same as my primary monitor has when all 3 displays are connected! ), is my primary monitor, so DisplayFusion doesn't render the shortcuts but it still renders the taskbar, which may have an additional "if", a faster response-/update-time ( oh yea, we do like asynchronous programming! ) or some other kind of mechanism to prevent weird situations like this.

Maybe my few brainfarts ( ) and my testing can help you guys hunting down the issue more easily

Greetings!

[EDiT]
Oh and yea, restarting DisplayFusion fixes the issue every time it occurs Lastly tested 5 seconds ago as the problem was still presented

[EDiT2]
In Beta 6 I can still reproduce the bug.

Yep, after all monitors are plugged in again the IDs are fine as I had never disconnected a monitor.

This time it took me 5 attempts to reproduce the bug. I'm not quite sure but for the last ( & successful ) attempt I opened a few applications on the right monitor ( the one with the missing shortcuts ), the others had just applications opened on the other two monitors and DF worked as intended.

I've uploaded the log to http://www.blackcorestudios.de/DP.txt, hope it helps

Please let me know if you no longer need the log, so I can remove it again from my webserver.

Of course Thank you Keith.

I'll let you know as soon I've tested it a couple of times.

Keith I just wanted to let you know that I've tested it several times and it's looking good so far Couldn't reproduce the issue.

Good job!