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9 discussion posts
System : Windows 10
DF Version : 10.0
Type : Paid Version (Steam)
Issue :
  • App crashes soon after launching it , without any visible queue.
  • Can take from a few minutes to about an hour for the crash to occur
  • It happens randomly even while PC is idle.
  • When it crashes , the Tray Icon disappears and some Windows actions stop working , like Alt+Tab.
  • I also tried the Beta 10.3 but faced the exact same issue

  • Attachments : I have attached the Log from Log Level 1.

    ----- Windows Event Log -----
    Faulting application name: DisplayFusion.exe, version:, time stamp: 0x641de100
    Faulting module name: mnet.dll, version:, time stamp: 0x5ff55998
    Exception code: 0xc0000005
    Fault offset: 0x000000000002e565
    Faulting process id: 0x4910
    Faulting application start time: 0x01d97eb840a3e49d
    Faulting application path: C:\Program Files\DisplayFusion\DisplayFusion.exe
    Faulting module path: C:\Windows\SYSTEM32\mnet.dll
    Report Id: 760045cd-4ed5-41cc-a30d-d1ddef568146
    Faulting package full name:
    Faulting package-relative application ID:

    ----- Windows Error Report -----
    Fault bucket 1336773830520497680, type 4
    Event Name: APPCRASH
    Response: Not available
    Cab Id: 0
    Problem signature:
    P1: DisplayFusion.exe
    P3: 641de100
    P4: mnet.dll
    P6: 5ff55998
    P7: c0000005
    P8: 000000000002e565
    • Attachment [protected]: DisplayFusion.log [302,740 bytes]
    May 4, 2023 (modified May 5, 2023)  • #1
    Owen Muhlethaler (BFS)'s profile on
    If you head to "C:\Users\(YourUser)\AppData\Local\CrashDumps", is there anything listed for DisplayFusion? If so, could you send over the latest one?
    May 5, 2023  • #2
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    9 discussion posts
    There is no CrushDump inside the "C:\Users\xxxx\AppData\Local\CrashDumps" for DisplayFusion.
    May 5, 2023  • #3
    Owen Muhlethaler (BFS)'s profile on
    How about this path: %LOCALAPPDATA%\Binary Fortress Software\DisplayFusion\CrashDumps
    May 8, 2023  • #4
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    9 discussion posts
    There are a few there. I can provide you the Analyze here , cause attaching them is not easy due to them being quite large exceeding the forum limit (400Mb-500Mb each).
    Ps : My GPU drivers are updated to the latest version.
    All of them are pretty much the same and apart from a lot of "SOS does not support the current target architecture 'x64'" at the start , the rest is as follows
    Key : AV.Fault
    Value: Read
    Key : Analysis.CPU.mSec
    Value: 4530
    Key : Analysis.DebugAnalysisManager
    Value: Create
    Key : Analysis.Elapsed.mSec
    Value: 7302
    Key : Analysis.Init.CPU.mSec
    Value: 1296
    Key : Analysis.Init.Elapsed.mSec
    Value: 33665
    Key : Analysis.Memory.CommitPeak.Mb
    Value: 152
    Key : CLR.Engine
    Value: CORECLR
    Key : CLR.Version
    Value: 7.0.523.17405
    Key : Timeline.OS.Boot.DeltaSec
    Value: 41360
    Key : Timeline.Process.Start.DeltaSec
    Value: 754
    Key : WER.OS.Branch
    Value: vb_release
    Key : WER.OS.Timestamp
    Value: 2019-12-06T14:06:00Z
    Key : WER.OS.Version
    Value: 10.0.19041.1
    Key : WER.Process.Version
    FILE_IN_CAB: DisplayFusion.exe.12908.dmp
    CONTEXT: (.ecxr)
    rax=000000000000725c rbx=0000000000000002 rcx=00000000fffffff8
    rdx=0000000000000058 rsi=000002ad7cbb1c00 rdi=0000009854a7f7b0
    rip=00007ffe9b6be565 rsp=0000009854a7f450 rbp=0000000000000000
    r8=0000000000000058 r9=000000000000085f r10=0000000000000056
    r11=000000000000085f r12=0000000000000001 r13=000000000000725c
    r14=0000000000000022 r15=0000000000007204
    iopl=0 nv up ei pl zr na po nc
    cs=0033 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00010246
    00007ffe`9b6be565 440fb60438 movzx r8d,byte ptr [rax+rdi] ds:00000098`54a86a0c=??
    Resetting default scope
    EXCEPTION_RECORD: (.exr -1)
    ExceptionAddress: 00007ffe9b6be565 (mnet!crc32c_append+0x0000000000026585)
    ExceptionCode: c0000005 (Access violation)
    ExceptionFlags: 00000000
    NumberParameters: 2
    Parameter[0]: 0000000000000000
    Parameter[1]: 0000009854a86a0c
    Attempt to read from address 0000009854a86a0c
    PROCESS_NAME: DisplayFusion.exe
    READ_ADDRESS: 0000009854a86a0c
    ERROR_CODE: (NTSTATUS) 0xc0000005 - The instruction at 0x%p referenced memory at 0x%p. The memory could not be %s.
    EXCEPTION_CODE_STR: c0000005
    EXCEPTION_PARAMETER1: 0000000000000000
    EXCEPTION_PARAMETER2: 0000009854a86a0c
    00000098`54a7f450 00007ffe`9b6ba8a6 : 00000098`54a7f648 00000098`0001201b 00000000`0000007d 00000098`00000028 : mnet!crc32c_append+0x26585
    00000098`54a7f5b0 00007ffe`9b6ba0c9 : 00000000`00000000 00000000`00000000 00000000`0000007d 000002ad`7cbb1c00 : mnet!crc32c_append+0x228c6
    00000098`54a7f740 00007fff`54f07604 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : mnet!crc32c_append+0x220e9
    00000098`54a7fdb0 00007fff`550426a1 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : kernel32!BaseThreadInitThunk+0x14
    00000098`54a7fde0 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : ntdll!RtlUserThreadStart+0x21
    SYMBOL_NAME: mnet+26585
    MODULE_NAME: mnet
    IMAGE_NAME: mnet.dll
    STACK_COMMAND: ~30s; .ecxr ; kb
    OS_VERSION: 10.0.19041.1
    BUILDLAB_STR: vb_release
    OSNAME: Windows 10
    FAILURE_ID_HASH: {f609645f-0568-027b-65f8-a54c98ce9815}
    Followup: MachineOwner
    May 9, 2023 (modified May 9, 2023)  • #5
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    9 discussion posts
    Can anybody point me towards DisplayFusions official support channel? What can someone, that bought their product do , when experiencing technical difficulties?

    Up till now i have tried this discussion board without success. To be honest though , i thought it was an official channel at first , so my expectations where also pretty high in terms of response times. Now that i see that it is run by people trying to help others on their spare time i can understand the delays and i am not after this kind of support.

    I have also tried contacting them through their email at "" but 10 days have passed without a single reply.

    Am i naive thinking that there is support for diplayfusion? Is the Project long dead and i am too oblivious to notice it? If that is the case , anyone lurking in this discussion has any alternative to propose in DisplayFusions spot? I only need the "Split Screen into Segments" feature.
    May 15, 2023 (modified May 15, 2023)  • #6
    Owen Muhlethaler (BFS)'s profile on
    Sorry for the delay here, we were taking a look into this. That mnet.dll isn't a system DLL, google says it might belong to an app called "Baidu". If you have that app installed on your system, could you try running without it and see if this issue persists? If not, could you search your computer for that dll, and see what app it's attached to?

    Edit: Seems like it could be this app as well:
    May 15, 2023 (modified May 15, 2023)  • #7
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    9 discussion posts
    I have uninstalled MidiHub and will report again.

    While we are at it , Alt+Tab is also not working. The App Selection window appears normally , pressing Alt+Tab again cycles through the options , and upon letting go , it does not focus on the "selected" app , it just flashes the "selected" app icon on the Taskbar.

    Tried so far :
  • Did not Help: Disabling Hooks on the Taskbar.
  • Did not Help: Resetting Taskbar Settings.
  • Did not Help: Disabling Taskbars all together and falling back to Windows.
  • Solved: Quitting DisplayFusion.
  • Solved: Disabling Application Hooks.
  • May 15, 2023 (modified May 15, 2023)  • #8
    Owen Muhlethaler (BFS)'s profile on
    Could you send me a copy of your troubleshooting info? Here are the steps:

    • Open the Settings > Troubleshooting tab
    • Click the "Export Info to File" button
    • Reply with the file attached
    May 16, 2023  • #9
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    9 discussion posts
    • Attachment [protected]: [63,761 bytes]
    May 17, 2023  • #10
    Owen Muhlethaler (BFS)'s profile on
    Can you update to our latest beta and send me over a debug log? Here are the steps:

    • On the DisplayFusion Settings > Troubleshooting tab, change the Logging drop-down to "L1: Log Minimal" and click Apply
    • 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

    Here's the link to the beta as well:
    May 17, 2023  • #11
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    9 discussion posts
    Sure. I have already used the Beta , as mentioned in my original post with the exact same results , but i would try again.

    Observations Regarding the Taskbar

  • I noticed that if i Alt+Tab slow , then it works every single time even on the Main monitor. By slow i mean giving it a solid second on the Selection Screen and then releasing it (Press Alt + Tab , release Tab and Hold Alt for a second then release Alt).

  • Other
  • There seems to be more of an issue switching focus on applications hosted on the main monitor. Switching focus between applications on different monitors (Cross Monitor) seems to work every single time , even switching between applications hosted on a specific monitor , other than the main , works every single time. (This is irrelevant of configuration either through Windows Display Configuration or physically changing cables , which i did both , with the same results)
  • I need to point out , that upon "fast" Alt+Tab , the Selection Popup appears normally and displays the change correctly (moves the selection box to the new window).The procedure after the selection (bring on focus the selected application) fails and i am left with a flashing taskbar icon of the selected app.
  • Adding on the debugging. The "state" of the selected app on the Popup display is always correct. Even when the change fails and i am left with the flashing icon , on the next try , the selection popup will correctly "state" that i never switched apps.
  • May 17, 2023 (modified May 17, 2023)  • #12
    Owen Muhlethaler (BFS)'s profile on
    You can try turning on "SetWindowPos: Disallow TopMost Calls" in the DisplayFusion Advanced Settings, and see if that makes a difference. If there's no change, send over a debug and we can have a look at it.

    May 18, 2023  • #13
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    The specific setting change did not affect the issue. Isn't the previous log i provided helpful? The issue with the Tab is not situational , but constant. If i have Display Fusion on then Alt+Tab suffers , if i quit the Software , then Alt+Tab works as expected.
    May 19, 2023  • #14
    Owen Muhlethaler (BFS)'s profile on
    Was your AltTab issue captured while the original log was running? I don't see any AltTab events in it
    May 19, 2023  • #15
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    9 discussion posts
    The first "window hook fail" is at "2023/05/19 21:25:14.0979" ( I suppose thats what you are looking for )

    I need to point out that it had been 100% reproducible till today morning. From this morning and on , i do not see it happening so often. (Even though it did not take me more than 2 minutes to reproduce it to get the log but generally its not a 100% right now). Nevertheless its impossible to guide you through changes that i have made on my machine. Due to the nature of my work a lot are installed , uninstalled and many services are running at the same time , rendering me unable to point out what exactly could be the culprit of a situational issue.

    Regarding the app quitting with no indication: Has not happened for 3 days in a row , i am still waiting.
    • Attachment [protected]: DisplayFusion_alt-tab.log [563,839 bytes]
    May 19, 2023 (modified May 19, 2023)  • #16
    Owen Muhlethaler (BFS)'s profile on
    Thanks for sending that over, we'll take a look into it and let you know if we need any other info.
    May 25, 2023  • #17
    Owen Muhlethaler (BFS)'s profile on
    We're reworking the way AltTab is handled in our next beta, so we'll get you to try it out once it's released.
    Jun 19, 2023  • #18
    Owen Muhlethaler (BFS)'s profile on
    We've released a new beta with some changes, can you try it out and let me know if the issue persists?
    Jul 5, 2023  • #19
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