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Explorer less responsive with DisplayFusion open

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altano
11 discussion posts
(note that I'm one of the people having performance problems with Resource Monitor + DisplayFusion open in the other thread)

Another area I'm noticing very bad performance is in Windows Explorer (whether I have Resource Monitor open or not). Just resizing an Explorer window is MUCH choppier when DisplayFusion is open and the choppiness goes away as soon as I close DisplayFusion. Navigating through folders in Explorer is also slow.

Strangely, when DisplayFusion is open, when opening a folder my mouse cursor turns into a mouse+spinner very briefly before the folder opens. Again, closing DisplayFusion fixes this.

I'm using the latest DisplayFusion and Windows 10 (1809).

A video demonstrating the problem: https://files.terriblefish.com/2019-02-12_02-24-28.mp4

Again, all of these same operations are fast as soon as I close DisplayFusion.
Feb 12, 2019 (modified Feb 12, 2019)  • #1
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altano
11 discussion posts
Note that I'm only interested in DisplayFusion for exactly one thing: monitor splitting and having a separate taskbar on each split.

If there are integrations I can disable that would make DisplayFusion hook into my system less (which is presumably one of the problems behind the Explorer slowness) please let me know how.

Thanks!
Feb 12, 2019  • #2
Keith Lammers (BFS)'s profile on WallpaperFusion.com
Could you attach a backup of your DisplayFusion Settings? (Settings > Options > Export)

Thanks!
Feb 12, 2019  • #3
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altano
11 discussion posts
Attached, thanks!
• Attachment [protected]: DisplayFusion Backup (2019-02-12 @ 12-31, 9.4.3.0, LINUS).reg.zip [44,306 bytes]
Feb 12, 2019  • #4
Keith Lammers (BFS)'s profile on WallpaperFusion.com
Thanks! I don't see anything out of the ordinary in your settings, and when I restore them here everything works fine.

Could you send me a debug log?

  • On the DisplayFusion Settings > Troubleshooting tab, change the Logging drop-down to "L1: Log Minimal" and click Apply
  • Drag/resize Explorer to reproduce the issue and note the time so we'll know where to check in the log file
  • Click the "Export Info to File" button on the Settings > Troubleshooting tab
  • Reply with the file attached
  • Disable debug logging after sending the log

Thanks!
Feb 14, 2019  • #5
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altano
11 discussion posts
Quote:
Could you send me a debug log?


Attached. 3:53AM PST.

I resized the window, created a couple of folders, moved one folder into the other, navigated through the folders. All slow as per my video.
• Attachment [protected]: DisplayFusionDebugInfo.zip [80,903 bytes]
Feb 15, 2019  • #6
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altano
11 discussion posts
I played around with this some more and the largest UI stalls are when I resize the window and it crosses monitor split. The taskbar icon moving from one taskbar to another freezes the UI for a long time. This is MUCH slower than just dragging the window around which doesn't freeze the UI at all (I have window snapping off, dragging windows was very slow when it was on).

This is only a partial root cause. It's still slow when NOT crossing the monitor split, and also this isn't causing the slowdown when navigating folders or creating folders.
Feb 15, 2019  • #7
Keith Lammers (BFS)'s profile on WallpaperFusion.com
Thanks! I don't see anything out of the ordinary in the log unfortunately :(

If you disable the monitor splits, does this still happen?
Feb 15, 2019  • #8
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altano
11 discussion posts
My trial ran out so I'm just going to bail. To get performance to even be workable required way too much tweaking and at this point I'd rather sacrifice the usability of DF for good performance with a competitor. I'm using a competitor that ONLY splits the screens and doesn't have all the other functionality like per-split taskbars.

I *really* miss the multiple taskbars but *shrug*. :(

Thanks again!
Mar 4, 2019  • #9
Keith Lammers (BFS)'s profile on WallpaperFusion.com
Ok, sorry to hear that it didn't work out! If you end up trying DisplayFusion again in the future and still run into these issues, please let me know and we can try to continue troubleshooting.

Thanks!
Mar 5, 2019  • #10
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EricL1
9 discussion posts
BTW, +1 on this. Windows Explorer isn't the only thing affected - just general window switching is much slower. I just purchased a license too, but I'm having regrets and am going to start looking at competitors.
Apr 1, 2019  • #11
Keith Lammers (BFS)'s profile on WallpaperFusion.com
@EricL: I'd be happy to try and help troubleshoot to see if we can resolve this issue. Please let me know.

Thanks!
Apr 1, 2019  • #12
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EricL1
9 discussion posts
For sure - attached is my log.
• Attachment [protected]: DisplayFusion.zip [368,358 bytes]
Apr 1, 2019  • #13
Keith Lammers (BFS)'s profile on WallpaperFusion.com
Thanks Eric! Does this seem to happen right after starting DisplayFusion, or only after it's been running for a while?
Apr 2, 2019  • #14
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EricL1
9 discussion posts
It happens soon after it loads.
Apr 2, 2019  • #15
Keith Lammers (BFS)'s profile on WallpaperFusion.com
Ok, and if you leave it running long enough, does DisplayFusion eventually crash?
Apr 3, 2019  • #16
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EricL1
9 discussion posts
I have never seen it actually crash. I just had to close it again however. After rebooting yesterday and seeing my system become responsive again, it has once again deteriorated forcing me to close DF - and now everything works smoothly. I have a very powerful system here so it's frustrating to see this happen. It seems to affect performance in every single app. I love DF's features and hope there's a way to resolve this.
Apr 3, 2019  • #17
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EricL1
9 discussion posts
FYI, here's another set of logs, this time set to max after a fresh boot into Windows. Performance eventually degraded until I had to close DF again.
• Attachment [protected]: DisplayFusion.zip [279,562 bytes]
Apr 4, 2019  • #18
Keith Lammers (BFS)'s profile on WallpaperFusion.com
Could you send me a copy of your troubleshooting info as well? Here are the steps:

  • Open the Settings > Troubleshooting tab
  • Click the "Export Info to File" button
  • Reply with the file attached
Apr 4, 2019  • #19
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EricL1
9 discussion posts
As attached!
• Attachment [protected]: DisplayFusionDebugInfo.zip [325,302 bytes]
Apr 4, 2019  • #20
Keith Lammers (BFS)'s profile on WallpaperFusion.com
Do you have iShadow VDM installed by any chance?
Apr 5, 2019  • #21
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EricL1
9 discussion posts
I actually just briefly tried it the other day. Have since uninstalled, but performance issues predate that.
Apr 5, 2019  • #22
Keith Lammers (BFS)'s profile on WallpaperFusion.com
Can you check to see if the VDM Windows service is still there and running? The DF troubleshooting info is showing that the VDM DLL is still injected in DisplayFusion.exe, so I'm wondering if that might be contributing to the issues you're having.
Apr 5, 2019  • #23
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EricL1
9 discussion posts
To be clear, I uninstalled it after I sent those logs. Here's a fresh set
• Attachment [protected]: DisplayFusionDebugInfo2.zip [322,334 bytes]
Apr 5, 2019  • #24
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EricL1
9 discussion posts
BTW, I'm using a 49" ultrawide monitor - that's not bad data in the logs
Apr 5, 2019  • #25
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altano
11 discussion posts
FWIW I have two ultrawide monitors. I wonder if performance degrades as a factor of screen real estate?
Apr 5, 2019  • #26
Keith Lammers (BFS)'s profile on WallpaperFusion.com
It shouldn't, I've got 2 4K monitors + a 1080p monitor here without issues. If you disable application hooks (Settings > Advanced Settings > Disable Application Hooks) and restart DisplayFusion, does that make any difference?
Apr 5, 2019  • #27
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