DisplayFusion RSS: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/RSS/?TopicID=24bec160-255d-4aab-b446-30ec970244bb DisplayFusion RSS: DF taskbar not showing window previews on mouse-over Tue, 07 Jul 2026 10:39:37 GMT en hourly 1 https://www.displayfusion.com/Discussions/RSS/?TopicID=24bec160-255d-4aab-b446-30ec970244bb RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#24 Fri, 13 Oct 2017 18:06:27 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#24 DisplayFusion Ok, pls keep us posted! It's pretty irritating! ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#23 Fri, 13 Oct 2017 17:32:48 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#23 DisplayFusion Ok, thanks for testing that! I think this issue has the same root cause as the auto-hide issue I was thinking of. I'm seeing the exact same log entries in the logs, so when we've gotten that fixed up, we'll be sure to let you know so you can re-test, and then we'll go from there.

Thanks! ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#22 Thu, 12 Oct 2017 18:36:54 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#22 DisplayFusion I never use autohide; it's always disabled on my machine. Conversely, if you think enabling auto-hide might rectify the bug I can try that, though. ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#21 Thu, 12 Oct 2017 17:44:40 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#21 DisplayFusion
Quote:
Possibly. Your log shows some entries that I believe are related to an issue when auto-hide is enabled. I'd like to confirm to make sure I don't duplicate issues in our system :)


I disabled auto hide when window preview was working. Window preview is NOT working anymore right now, and neither is opacity/transparency... (Never noticed that before due to Auto-hide, so IDK whether or not that was an issue before!)

Attached my latest log, FYI... ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#20 Thu, 12 Oct 2017 17:40:31 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#20 DisplayFusion Possibly. Your log shows some entries that I believe are related to an issue when auto-hide is enabled. I'd like to confirm to make sure I don't duplicate issues in our system :) ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#19 Thu, 12 Oct 2017 13:34:05 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#19 DisplayFusion
Quote:
If you disable auto-hide on your taskbars, does the issue still occur?


IDK, I'll have to test that... I will turn it off (reluctantly) and let you know in a while...
(Is this a known bug or something?) ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#18 Thu, 12 Oct 2017 13:27:27 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#18 DisplayFusion If you disable auto-hide on your taskbars, does the issue still occur? ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#17 Wed, 11 Oct 2017 19:12:00 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#17 DisplayFusion As requested... ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#16 Wed, 11 Oct 2017 19:01:57 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#16 DisplayFusion Ok, could you attach a copy of your troubleshooting info? Here are the steps:
  • Open the Settings > Troubleshooting tab
  • Click the "Copy to Clipboard" button
  • Paste the text into a text file (please don't paste the text directly into your reply, the formatting gets garbled and makes it difficult to parse)
  • Reply with the file attached
]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#15 Wed, 11 Oct 2017 18:20:22 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#15 DisplayFusion
Quote:
@Fear na Boinne: Can you describe the exact behaviour you're seeing, and what steps seem to make it occur?

I can copy the OP's first post, but that seems kinda stupid...

It 'just happens' after a while... Cannot pinpoint it, or tie it to a specific application...
(Right now, for instance, it isn't working again! I have no clue why!)

PS: I'm on the latest stable: 8.1.2 ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#14 Wed, 11 Oct 2017 17:54:49 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#14 DisplayFusion @Fear na Boinne: Can you describe the exact behaviour you're seeing, and what steps seem to make it occur? ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#13 Tue, 10 Oct 2017 13:38:24 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#13 DisplayFusion Just as an FYI: I am seeing the same behavior... I've attached the log FYI... ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#12 Tue, 25 Jul 2017 16:55:04 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#12 DisplayFusion Interesting! MPC-HC only hangs for me when trying to load a video, so I tried your steps with just opening MPC-HC, but everything still works correctly for me. Could you export your MPC-HC settings and attach them? ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#11 Sat, 22 Jul 2017 21:04:38 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#11 DisplayFusion One other thing to add: when this occurs, if I press the Windows key or click the Start button on the main monitor (the one with the Windows taskbar) the Start menu always opens on the DF taskbar monitor. It's as if DF is stealing the Start menu, even when it shouldn't open on that display. This resolves along with everything else if I relaunch DF. ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#10 Fri, 21 Jul 2017 19:59:19 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#10 DisplayFusion I'm also curious why MPC-HC is hanging for you; that's fascinating.

As I obviously have Screencast-o-matic, let me know if you think a screencast would be useful. I can demonstrate both scenarios, opening DF first, and opening DF second. ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#9 Fri, 21 Jul 2017 19:57:10 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#9 DisplayFusion Ok, this is very interesting. Once DF is bugging out, ANY app which goes fullscreen is impacted: the taskbar remains on top. However, the trigger is simply launching MPC-HC (I'm running 1.7.13-x64 but it occurs with the previous release, too).

Steps:
  • Open something fullscreen (been using YouTube in Chrome-stable), works fine.
  • Launch MPC-HC (don't even load a video) (or load a video, no difference. Just not required)
  • Open something fullscreen -- DF is now stuck on top.
  • Exit MPC-HC and then restart DF
  • Fullscreen back to working fine.

You can repeat this ad nauseum, it occurs 100% for me. Attaching log, just did it 3 or 4 times in a row. What's very interesting is that if I leave MPC-HC running while relaunching DF then the issue is gone temporarily. MPC-HC will go to fullscreen fine once or twice after relaunching DF, but after a random period the DF taskbar gets stuck on top again (but only if you exit and reenter fullscreen, it doesn't suddenly pop to top during uninterrupted fullscreen).

When the taskbar suddenly comes back to top it happens like this:
  • Exit fullscreen
  • Reenter fullscreen
  • DF taskbar is on top, then pops under after a moment (this is ordinary behavior)
  • DF taskbar flickers as if trying to pop under, then gets stuck on top permanently (this is error behavior)
]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#8 Fri, 21 Jul 2017 19:44:47 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#8 DisplayFusion Can you get this to happen with any other full screen apps? When I try MPC-HC here it hangs as soon as I try to open a file. Tried both the 32-bit and 64-bit versions of MPC-HC :( ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#7 Thu, 20 Jul 2017 14:39:50 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#7 DisplayFusion Ok, so it looks like the issue is not Screencast-o-Matic; it JUST occurred again, and killing that process did not resolve the issue.

Here's what occurred:
  • I restored a Win Explorer window, double clicked on a video file, and minimized the window. Thus, minimizing/restoring Windows Explorer windows worked fine at that time.
  • MPC-HC (default mp4 player) was now open; I started playback and put the video into fullscreen on my second display (the one with the DF taskbar)
  • Immediately noticed that the DF taskbar was remaining on top of the video.
  • Tried exiting and returning to fullscreen -- no dice.
  • Exited fullscreen again and tried to restore the Windows Explorer window I'd minimized in step 1. Windows Explorer window would not restore, and mouse-over didn't show the previews of all open WE windows, as would be normal behavior.
  • I used Task Manager to kill the screencast-o-matic.exe process.
  • Tried restoring WE windows and playing video fullscreen -- no dice.
  • Right-clicked DF taskbar and chose "Exit". Then re-launched DF from Start Menu.
  • Windows Explorer windows now show previews on mouse-over in taskbar and restore when clicked. Taskbar also goes to background when MPC-HC is fullscreen.

I'm attaching the complete log file; this whole situation transpired less than 5 minutes before I exported the log, so you shouldn't have to look back far.

Thanks for your help! ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#6 Wed, 19 Jul 2017 15:42:58 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#6 DisplayFusion Yeah, I'm not 100% sure that it's causing the issue, but it's a good start anyways. Let me know how it works out and we'll go from there :)

Thanks! ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#5 Wed, 19 Jul 2017 15:13:54 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#5 DisplayFusion Now that's interesting -- I hadn't even noticed Screencast-o-Matic was running in the background. The program itself is closed, and I wasn't aware it had any persistent processes (but I do see one now that I checked). I will definitely try killing it next time it happens. I'm dubious, though.. the problem is only affecting Windows Explorer windows, other apps restore fine. But you never know. ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#4 Wed, 19 Jul 2017 14:30:22 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#4 DisplayFusion Thanks Matthew! In the log it looks like DisplayFusion is detecting a "full screen" but invisible window from the following program:

"C:\Program Files (x86)\Screencast-O-Matic\v2\Screencast-O-Matic.exe"

That could possibly be contributing to the weird taskbar behaviour. The next time this issue occurs, if you exit Screencast-O-Matic, does that fix it up? ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#3 Mon, 17 Jul 2017 15:40:40 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#3 DisplayFusion Here is the log. It's happened multiple times, but most recently twice within the last 20 minutes, so check the most recent log events. I had MPC-HD open and the taskbar stopped going into the background on fullscreen; I also could not un-minimize Windows Explorer windows, though all other programs un-minimized just fine.

I exited DF 9b3 and restarted it, and the taskbar went into the background properly; I could also un-minimize Explorer windows again. I then took MPC out of fullscreen and back to fullscreen, and the improper DF behavior returned, including the problem with Explorer windows.

I restarted DF again, and the issue went away again. Hopefully the log file is useful.

Edit: to clarify, the issue with Explorer windows is the same issue as my initial post, where mouse-over or clicking the icon fails to show the minimized window previews, etc. I'm mentioning the taskbar-fullscreen bug because I've now discovered they only occur in concert, so they are likely related. ]]> RE: DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#2 Wed, 14 Jun 2017 17:05:45 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb#2 DisplayFusion L1 logging should be good for now! Just attach the log here when you've been able to reproduce it again and we'll go from there :)

Thanks! ]]> DF taskbar not showing window previews on mouse-over https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb Tue, 13 Jun 2017 21:30:09 GMT Binary Fortress Software https://www.displayfusion.com/Discussions/View/df-taskbar-not-showing-window-previews-on-mouse-over/?ID=24bec160-255d-4aab-b446-30ec970244bb DisplayFusion I have my taskbar set to show a single icon for each program, and rely on mouse-over to let me quickly bring a specific application's window to the foreground. Since 9.0b3 the mouse-over behavior has begun to randomly stop. When this occurs, clicking the taskbar icons also fails to elicit a response; that ought to bring single-window apps to the foreground or show the mini-previews, just like mouse-over.

It's happened twice so far in as many days, and each time it can be resolved by right-clicking the taskbar and clicking "Settings". Once the DF settings UI opens, all is well.

This may or may not be related: each time I right-click the taskbar and choose "Settings" or "About", DF opens behind the foreground window. What's interesting is it only opens behind the foremost window; it's not positioned at the bottom of the Z-order, it's simply one below the topmost.

I have set logging to L1; should I set it to L2 or L3? Or is L1 sufficient to capture any useful data? ]]>