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  • TyranusVader
    121 posts

    @yazx_ Link on where to modify the registry: https://docs.microsoft.com/en-us/windows-hardware/drivers/display/tdr-registry-keys

    Scroll down until you see "tdrdelay"

    Modify your registry using regedit and restart Windows.

    Disclaimer: I'm not responsible for any potential damage this may cause your OS!

  • longjohn119
    617 posts
    @yazx_ GPU hardware scheduling for AMD GPUs is disabled in the driver and not available to toggle in Windows. I guess that AMD noticed that it created more problems than it solved. It was only available in the 20.5.1 driver. Nothing after that. I'll let you know if increasing the TDR timeout has any effect. Thanks for your input!


    That's because AMD graphics cards have a hardware scheduler built in already and have for a number of years now .... I suspect they decided their hardware solution works better than Microsoft's software solution .....

  • GediminasLM
    1 posts

    I'm also experiencing crashes. Not sure when this issue started. Maybe two weeks ago or so. According to EventViewer, crashes are related to nvlddmkm.

    Other games are working without any issues.

    i9-9900k, 16GB Ram, RTX 2080 Ti, 2 SSD drives.

  • TyranusVader
    121 posts

    @gediminaslm Thanks for showing that this isn't isolated to just AMD GPUs.

  • TyranusVader
    121 posts

    @longjohn119 adjusting TDRdelay didn't prevent a driver timeout as I just experienced another one *sigh*. It's annoying because the game otherwise runs great for me. I have sent bug reports to AMD. Hopefully AMD and Ubi devs are looking into this?

  • longjohn119
    617 posts

    @tyranusvader The problem isn't your computers, the problem is Ubisoft isn't implementing the DX12 APIs correctly ..... This is a 2014 game engine written for DX11 and Valhalla is the first game that tried to use the DX12 APIs and it's just not working ......

    I doubt it will ever work without a complete rewrite of the game engine from the core up ......

  • atabalau70
    2 posts

    Crashes continue. Incredible.

  • TyranusVader
    121 posts

    @atabalau70 Just had a CTD. However, I noticed the new patch has a welcome addition: Ubisoft Connect is able to generate and submit a crash report. Saves me the trouble of generating a support ticket.

    No TDR crashes (for now).

  • ElectricSquall
    22 posts

    Still crashing. Can't play the game, period.

    The area is: East Mongolia | Serpent's Peak.

    The game crashes after 5 minutes, no matter what. Then I receive a driver stopped responding message. Trying to play in 2 different systems:

    5950x + 6900xt and 10900k + 2080 Super. The crashes happens in both systems, stopping the GPU drivers. I'm really afraid of trying again, dont wanna damage my cards.

    Already submitted the crash report to Ubisoft 5 times today.

    Here are the Windows log events:

    AMD Issues

    Crash 1:
    Faulting application name: Radeonsoftware.exe, version: 10.1.2.1862, time stamp: 0x6075cb03
    Faulting module name: Qt5Core.dll, version: 5.14.1.0, time stamp: 0x5e6f5e90
    Exception code: 0xc0000005
    Fault offset: 0x0000000000004140
    Faulting process id: 0x3120
    Faulting application start time: 0x01d782e8e782e91f
    Faulting application path: C:\Program Files\AMD\CNext\CNext\Radeonsoftware.exe
    Faulting module path: C:\Program Files\AMD\CNext\CNext\Qt5Core.dll
    Report Id: e6d870eb-fec3-4266-a874-d5bd5442be8e
    Faulting package full name: 
    Faulting package-relative application ID: 

    Crash 2:
    Faulting application name: Radeonsoftware.exe, version: 10.1.2.1862, time stamp: 0x6075cb03
    Faulting module name: Qt5Core.dll, version: 5.14.1.0, time stamp: 0x5e6f5e90
    Exception code: 0xc0000005
    Fault offset: 0x0000000000004140
    Faulting process id: 0xc8c
    Faulting application start time: 0x01d782e8f7e5ca94
    Faulting application path: C:\Program Files\AMD\CNext\CNext\Radeonsoftware.exe
    Faulting module path: C:\Program Files\AMD\CNext\CNext\Qt5Core.dll
    Report Id: 5bc83fb7-5f74-48ad-9aa6-e4469a287c96
    Faulting package full name: 
    Faulting package-relative application ID: 

    Crash 3:
    Faulting application name: Radeonsoftware.exe, version: 10.1.2.1862, time stamp: 0x6075cb03
    Faulting module name: ntdll.dll, version: 10.0.19041.1110, time stamp: 0xe7a22463
    Exception code: 0xc0000374
    Fault offset: 0x00000000000ff259
    Faulting process id: 0x3050
    Faulting application start time: 0x01d782e943598168
    Faulting application path: C:\Program Files\AMD\CNext\CNext\Radeonsoftware.exe
    Faulting module path: C:\Windows\SYSTEM32\ntdll.dll
    Report Id: c16b1007-18dc-455d-8897-82ff1eb79410
    Faulting package full name: 
    Faulting package-relative application ID: 

    Nvidia Issues:

    Same application errors, the only difference is the tray message: Display driver nvlddmkm stopped responding and has successfully recovered

    Can you PLEEEASEEE Work into this? This is not normal, this game is rotten to the core.

  • Ubi-Borealis
    Ubisoft Support Staff 3625 posts

    Hello there,

    Thank you for continuing to share your crash reports with us. If you are experiencing crashes in-game and have not yet tried these basic PC troubleshooting steps, we would recommend that you follow the steps on the linked support article. These troubleshooting steps help to combat a number of common causes behind crashes in-game.

    If you have already tried these troubleshooting steps, please can you open a support ticket so our team can take a closer look at your system files. We are unable to view your system files on the forums. These system files are incredibly helpful for further investigation and for providing additional troubleshooting steps for your specific system. Even if you have already sent a crash report via Ubisoft Connect, opening a support ticket is helpful for our team to investigate your issue further.You can open a ticket in the following ways:


    When opening a support ticket, please can you include the following information:

    • A copy of your MSinfo and DxDiag
    • A copy of your Ubisoft Connect launcher log
    • All troubleshooting steps you have tried so far, including steps from our linked support article and any additional ones you may have tried from this thread
    • Any error messages or pop-ups you have received, either from the game or during troubleshooting
    • When the crashes / freezes first began, and if they happen at specific locations (such as beginning a certain quest, or in a specific area in-game)


    If you encounter any trouble when opening up a support ticket, please don't hesitate to reach out and we'll gladly assist further.

    @noneofyou - I'm sorry to hear that you've been unable to open a support ticket to submit your system files. If you're still unable to open a ticket, please don't hesitate to let us know and we'll assist you further with this issue.

    Thanks 😊

    Official Response
  • UkOldGit
    7 posts
    This post is deleted!
  • UkOldGit
    7 posts

    I've spent months chatting with Ubisoft support and tried most of their scripted replies with no resolution to the TDR crashes.

    Me and a friend also experienced TDRs in BOCW aswell and between us have found what almost seems a cure for them, not stopped them completely but over the last 10 days after implenting the below I've only experienced one TDR in Valhalla where as it use to crash at least once whenever I played it, this also applies to BOCW.

    Can't say for sure if any of the below is the reason for less TDR's but it certainly seems likely, I'm thinking of turning Hibernate back on sometime to see if the TDR's return regularly but quite frankly have got a bit fed up with trying different things I might just leave it how it is for now.

    Turn Hibernate off
    powercfg.exe /hibernate off (This is a Command prompt command)

    Control Panel Power Options, power plan
    Turn off hard disk = 0 minutes (Control Panel Power Options, change what ever plan you are using)
    PCI Express>Link State Power Management = off

    Disk clean-up
    Clear DirectX shader cache (Type in Disk Clean into the Cortana search bar and follow the prompts)

    Amd Driver
    Reset Shaders (Not sure if Nvidia have this option)

    GPU driver 21.7.1 (Was the latest driver at the time)

  • niumura
    11 posts

    @yazx_ I have this setting Off, but game often crashes unexpectedly.

  • YazX_
    164 posts

    @niumura Driver crash or game crash?

  • Angry_Sith_Lord
    2 posts

    PC/Steam.
    Never had crashes before. After 1.3.0 update game crashes to desktop in benchmark, just doing dailies, also doing nothing, idle anywhere. Its unplayable sadly.

  • Angry_Sith_Lord
    2 posts

    @yazx_ game crashes with the nvidia previous driver for me too. I tried with clean ddu install

  • YazX_
    164 posts

    @angry_sith_lord i'm on driver version 466.63 and did what i posted above, you can also disable all LED lightings softwares and close all running softwares in background and try again.

  • groe69
    1 posts

    I'm in the game in Ireland. After updating to 1.3.0, the game always crashes when a military camp is raided and I have to start over.
    I'm not getting any further here. Nvidia 3800 with driver 471.41, AMD Ryzen 3 5900x, 32 GB RAM.

  • TyranusVader
    121 posts

    I recently updated to the latest AMD GPU drivers (21.7.2) and so far I have not experienced any driver timeouts are crashes to the desktop in any sessions with this game.

  • TyranusVader
    121 posts

    Spoke too soon! Just experienced a crash to desktop:

    Fault bucket 2163782611381664052, type 5
    Event Name: D3DDRED2
    Response: Not available
    Cab Id: 0

    Problem signature:
    P1: VEN_1002
    P2: 27.20.22021.1002
    P3: 0x887A0006
    P4: 7
    P5: ACValhalla.exe
    P6: Unknown
    P7: 
    P8: 
    P9: 
    P10: 

    Attached files:
    \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER14C9.tmp.WERInternalMetadata.xml
    \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER14DA.tmp.xml
    \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER14E9.tmp.csv
    \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER1509.tmp.txt

    These files may be available here:
    \\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\NonCritical_VEN_1002_974f8cbf20c1f6c47e641fe1685c5861ffaca92_00000000_278e3e18-01c6-47f9-84e2-459aacbf598b

    Analysis symbol: 
    Rechecking for solution: 0
    Report Id: 278e3e18-01c6-47f9-84e2-459aacbf598b
    Report Status: 268435456
    Hashed bucket: d9f7127fcbddf73efe074cd222923934
    Cab Guid: 0

    And a driver timeout:

    Faulting application name: Radeonsoftware.exe, version: 10.1.2.1873, time stamp: 0x60f98791
    Faulting module name: ucrtbase.dll, version: 10.0.19041.789, time stamp: 0x2bd748bf
    Exception code: 0xc0000409
    Fault offset: 0x000000000007286e
    Faulting process id: 0x28e8
    Faulting application start time: 0x01d7833d858baff9
    Faulting application path: C:\Program Files\AMD\CNext\CNext\Radeonsoftware.exe
    Faulting module path: C:\Windows\System32\ucrtbase.dll
    Report Id: 162b67cb-28c4-4fb9-8391-382d42543747
    Faulting package full name: 
    Faulting package-relative application ID: 

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