Just find in my mailbox .....

19/01 : Openning ticket : "Hello satrincha,Thank you for contacting Ubisoft."
23/01 : "Recently you requested personal assistance from Ubisoft Support. As we have not heard from you in the last four days your case has been closed automatically."

Woooo why are they not that faster to make patch than they close tickets !!! This DX12 errors exist since ubisoft make DX12 games ... you can find it years ago with The Division 2 or with ACV since day one.
You have almost 20000 employees paid for making games, why me who paid the game, will send you my personnal datas .....

I was planning to play ACV on Christmas vacation ... 2 months ago. Now i am playing others games who works perfectly as usual. I don't know when i will launch ACV again.
By the way there is a hotfix for nvidia with ACV correction. (GeForce Hotfix Driver Version 511.72)

https://nvidia.custhelp.com/app/answers/detail/a_id/5320: (https://nvidia.custhelp.com/app/answers/detail/a_id/5320)

GeForce hotfix display driver version 511.72 is based on our latest Game Ready Driver 511.65.
 
The hotfix addresses the following issues:
G-SYNC cannot be re-enabled on G-SYNC Compatible displays after manually disabling from the NVIDIA Control Panel [3523157]
Call of Duty Vanguard random corruption [3519774]
Assassin's Creed Valhalla may fail to launch correctly [3525655]
Click here to download the GeForce hotfix display driver for Windows 10 x64/ Windows 11 x64

@ubi-borealis Yes i was able to finish the game without any crashes ... it's like ubisoft create a corrupt setup file, when nvidia create a good one.

I don't know yet if i have fixed my problem, but monday i crash after only 5mn ... i tried something else. I did go to Nvidia Geforce Experience, select AC Valhalla, and apply the optimal setup from Nvidia for the game.
And since i didn't crash, i play 2h monday and 3h today without any crash or freeze !

Just tried it, freeze and crash after 19mn doing exploration
74 days since the broken patch. ....................... can't say what i think about Ub..... now..........................................

I was planning to play ACV on Christmas vacation ... 2 months ago. Now i am playing others games who works perfectly as usual. I don't know when i will launch ACV again.
By the way there is a hotfix for nvidia with ACV correction. (GeForce Hotfix Driver Version 511.72)

https://nvidia.custhelp.com/app/answers/detail/a_id/5320: (https://nvidia.custhelp.com/app/answers/detail/a_id/5320)

GeForce hotfix display driver version 511.72 is based on our latest Game Ready Driver 511.65.
 
The hotfix addresses the following issues:
G-SYNC cannot be re-enabled on G-SYNC Compatible displays after manually disabling from the NVIDIA Control Panel [3523157]
Call of Duty Vanguard random corruption [3519774]
Assassin's Creed Valhalla may fail to launch correctly [3525655]
Click here to download the GeForce hotfix display driver for Windows 10 x64/ Windows 11 x64

Just find in my mailbox .....

19/01 : Openning ticket : "Hello satrincha,Thank you for contacting Ubisoft."
23/01 : "Recently you requested personal assistance from Ubisoft Support. As we have not heard from you in the last four days your case has been closed automatically."

Woooo why are they not that faster to make patch than they close tickets !!! This DX12 errors exist since ubisoft make DX12 games ... you can find it years ago with The Division 2 or with ACV since day one.
You have almost 20000 employees paid for making games, why me who paid the game, will send you my personnal datas .....

• Have you been able to complete our basic PC troubleshooting guide? These steps help to tackle a number of common causes behind crashes / freezes, and provide us with a basis for further investigation. Yes for the guide, and more i would have done for any other game.
• What are your system specs (CPU/GPU)? Asus SABERTOOTH Z87 C2, i7-4770k, PNY GeForce RTX 2060 SUPER Twin Fans 8Go GDDR6, G.Skill Kit Extreme3 4 x 8 Go PC21300 Trident X CAS12.
• Have you been able to play the game without experiencing crashes / freezes before? Yes before patch v1.4.1.1, i start the game only the 11 December 2021, i could do the intro on Norway, and the begenning of England without any crash or freeze.
• When did these crashes / freezes first occur? Please be as exact as possible. After the Patch v1.4.1.1, all the time when i opened the map.
• Have you made any recent changes to your system, such as updating your Operating System or installing new software? No.
• Are there any specific triggers for these crashes / freezes? For instance, do they happen when launching the game, or during a loading screen? At first it was always when i opened the map. After for any reason it was random when playing, but it never happend during cinematics, and less during main plot. They were MUCH more common in Lunden. I did my last play the DLC Siege of Paris, it was a nightmare, lot of crashes and freezes (even the plot for first time), but where it was crazy like nonstop (2sc playing, 10sc freezing, 3sc playing, 8sc freezing, etc …) was inside Paris during the story. Paris gave me lots of freezes as Lunden. After finishing the DLC i just do exploration to the south west of england, and i had so many crashes, sometimes i was just on nature 2mn on my horse and boom … CTD. I stop the game since, unplayble. Every other games are ok, even DX12 games, even BF2042 never froze or crashed . All errors log ACV are « EventType=D3DDRED2 »

If you use AppCrashView, to view your crash logs,all your CTD are releated to D3DDRED2 ?

https://www.nirsoft.net/utils/app_crash_view.html: (https://nirsoft.net/utils/app_crash_view.html)

@ubistorm Hi, thank you for your answer. I export files but it's more than 10mo for msinfo, so i can't check if there is privates informations on it. ACV is the only game that crashes in years, so i don't want to take the risk.
I check errors files (.wer) and they are all like that :

Version=1
EventType=D3DDRED2
EventTime=132861603655787833
Consent=1
UploadTime=132861603658395690
ReportStatus=268435456
ReportIdentifier=b4d5936a-671a-4a79-a8d8-77397f4a67c8
Wow64Host=34404
AppSessionGuid=0000455c-0001-0182-4f38-789cde04d801
TargetAppId=W:0006af9cb5f3ba973ee7b458e577392202090000ffff!0000bc4e01c0c3090013cf1be48fd86a06891439418f!ACValhalla.exe
TargetAppVer=2021//12//21:05:35:31!222b294e!ACValhalla.exe
BootId=4294967295
TargetAsId=10430
UserImpactVector=269488400
IsFatal=4294967295
EtwNonCollectReason=1
Response.BucketId=3d37c201ba60af71ba2a7477275cefd7
Response.BucketTable=5
Response.LegacyBucketId=1885447449118306263
Response.type=4
Sig[0].Name=GpuManufacturer
Sig[0].Value=VEN_10DE
Sig[1].Name=GpuDriverVersion
Sig[1].Value=30.0.14.9729
Sig[2].Name=DeviceRemovedReason
Sig[2].Value=0x887A0006
Sig[3].Name=DeviceExecutionState
Sig[3].Value=7
Sig[4].Name=AppName
Sig[4].Value=ACValhalla.exe
Sig[5].Name=AppVer
Sig[5].Value=Unknown
DynamicSig[1].Name=Version du système
DynamicSig[1].Value=10.0.19044.2.0.0.256.48
DynamicSig[2].Name=Identificateur de paramètres régionaux
DynamicSig[2].Value=1036
State[0].Key=Transport.DoneStage1
State[0].Value=1
ProcessMetadata[0].Key=d3ddredDataPresent
ProcessMetadata[0].Value=0
OsInfo[0].Key=vermaj
OsInfo[0].Value=10
OsInfo[1].Key=vermin
OsInfo[1].Value=0
OsInfo[2].Key=verbld
OsInfo[2].Value=19044
OsInfo[3].Key=ubr
OsInfo[3].Value=1415
OsInfo[4].Key=versp
OsInfo[4].Value=0
OsInfo[5].Key=arch
OsInfo[5].Value=9
OsInfo[6].Key=lcid
OsInfo[6].Value=1036
OsInfo[7].Key=geoid
OsInfo[7].Value=84
OsInfo[8].Key=sku
OsInfo[8].Value=48
OsInfo[9].Key=domain
OsInfo[9].Value=0
OsInfo[10].Key=prodsuite
OsInfo[10].Value=256
OsInfo[11].Key=ntprodtype
OsInfo[11].Value=1
OsInfo[12].Key=platid
OsInfo[12].Value=10
OsInfo[13].Key=sr
OsInfo[13].Value=0
OsInfo[14].Key=tmsi
OsInfo[14].Value=221433272
OsInfo[15].Key=osinsty
OsInfo[15].Value=3
OsInfo[16].Key=iever
OsInfo[16].Value=11.789.19041.0-11.0.1000
OsInfo[17].Key=portos
OsInfo[17].Value=0
OsInfo[18].Key=ram
OsInfo[18].Value=32703
OsInfo[19].Key=svolsz
OsInfo[19].Value=930
OsInfo[20].Key=wimbt
OsInfo[20].Value=0
OsInfo[21].Key=blddt
OsInfo[21].Value=191206
OsInfo[22].Key=bldtm
OsInfo[22].Value=1406
OsInfo[23].Key=bldbrch
OsInfo[23].Value=vb_release
OsInfo[24].Key=bldchk
OsInfo[24].Value=0
OsInfo[25].Key=wpvermaj
OsInfo[25].Value=0
OsInfo[26].Key=wpvermin
OsInfo[26].Value=0
OsInfo[27].Key=wpbuildmaj
OsInfo[27].Value=0
OsInfo[28].Key=wpbuildmin
OsInfo[28].Value=0
OsInfo[29].Key=osver
OsInfo[29].Value=10.0.19041.1415.amd64fre.vb_release.191206-1406
OsInfo[30].Key=buildflightid
OsInfo[30].Value=AFBFD20A-E84A-4FA1-8A13-8B50298D5BBA.1
OsInfo[31].Key=edition
OsInfo[31].Value=Professional
OsInfo[32].Key=ring
OsInfo[32].Value=Retail
OsInfo[33].Key=expid
OsInfo[34].Key=fconid
OsInfo[35].Key=containerid
OsInfo[36].Key=containertype
OsInfo[37].Key=edu
OsInfo[37].Value=0
FriendlyEventName=D3DDRED2
ConsentKey=D3DDRED2
AppName=ACValhalla.exe
AppPath=C:\Program Files (x86)\Ubisoft\Ubisoft Game Launcher\games\Assassin's Creed Valhalla\ACValhalla.exe
ReportDescription=D3D12 Device Removed Extended Data
ApplicationIdentity=00000000000000000000000000000000
MetadataHash=-538354166

The game freeze unstead of crashing with that dll fixe, but some area like many others players is freezing like crazy, more i am close to big cities more i froze. I am at 74% of the game (i had hundred of crash and freeze that's why it's so big ?) i play the DLC Siege of Paris, and inside Paris i got freeze in some areas 7sc every 3sc ..... it's a nightmare. I suppose freezing didn't create an error log.

> Thank for your tip, i dont have any nvlddmkm.sys error, i check.

@ubi-oxavo Hi, yes i still have this issue, but i am now using this fix ( https://community.pcgamingwiki.com/files/file/2221-assassins-creed-valhalla-cpu-utilization-fix: (https://community.pcgamingwiki.com/files/file/2221-assassins-creed-valhalla-cpu-utilization-fix) ), my crashs (CTD) are replaced by huge freezes (5 to 10sc) instead. But i still getting some CTD but really rare. Freezes are the same, can happen 5 times in 2mn, or 1 time in 2h, my CPU go to 100% when i got the freeze, but if i have something running in my secondary monitor like twitch, i don't have any problem, freeze or something else, only the game froze.

I partially corrected my game crashes with this fix, now i have huge freezes of 5 to 10sc instead of CTD (with the v2, didn't try v1) :
https://community.pcgamingwiki.com/files/file/2221-assassins-creed-valhalla-cpu-utilization-fix/: (https://community.pcgamingwiki.com/files/file/2221-assassins-creed-valhalla-cpu-utilization-fix)
found here : https://www.pcgamingwiki.com/wiki/Assassin%27s_Creed_Valhalla: (https://pcgamingwiki.com/wiki/Assassin's_Creed_Valhalla)

It's better than nothing.