BSOD GTX850m

[gplayer89]

Ciao a tutti, ho un problema con il mio laptop (Asus N550J con i7 4700hq, GTX850m, 8GB di RAM e 1TB di HDD):
spesso mentre gioco a League of Legend crasha in malo modo dandomi una BSOD. Con "Whocrashed" sono andato a vedere il report dei crash e quello che risultava è:

On Wed 19/07/2017 21:37:13 your computer crashed
crash dump file: C:\WINDOWS\Minidump\071917-27500-01.dmp
This was probably caused by the following module: watchdog.sys (watchdog+0x355E)
Bugcheck code: 0x119 (0x2, 0xFFFFFFFFC000000D, 0xFFFFA70130CD2960, 0xFFFFE58B0BBC9820)
Error: VIDEO_SCHEDULER_INTERNAL_ERROR
file path: C:\WINDOWS\system32\drivers\watchdog.sys
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: Watchdog Driver
Bug check description: This indicates that the video scheduler has detected a fatal violation.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system that cannot be identified at this time.



On Wed 19/07/2017 21:37:13 your computer crashed
crash dump file: C:\WINDOWS\memory.dmp
This was probably caused by the following module: watchdog.sys (watchdog!WdLogEvent5_WdCriticalError+0xCE)
Bugcheck code: 0x119 (0x2, 0xFFFFFFFFC000000D, 0xFFFFA70130CD2960, 0xFFFFE58B0BBC9820)
Error: VIDEO_SCHEDULER_INTERNAL_ERROR
file path: C:\WINDOWS\system32\drivers\watchdog.sys
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: Watchdog Driver
Bug check description: This indicates that the video scheduler has detected a fatal violation.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system that cannot be identified at this time.



On Wed 19/07/2017 21:27:45 your computer crashed
crash dump file: C:\WINDOWS\Minidump\071917-26640-01.dmp
This was probably caused by the following module: watchdog.sys (watchdog+0x355E)
Bugcheck code: 0x119 (0x2, 0xFFFFFFFFC000000D, 0xFFFF8400105BA960, 0xFFFFD60283C0EAC0)
Error: VIDEO_SCHEDULER_INTERNAL_ERROR
file path: C:\WINDOWS\system32\drivers\watchdog.sys
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: Watchdog Driver
Bug check description: This indicates that the video scheduler has detected a fatal violation.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system that cannot be identified at this time.



On Wed 19/07/2017 12:53:58 your computer crashed
crash dump file: C:\WINDOWS\Minidump\071917-36515-01.dmp
This was probably caused by the following module: ntoskrnl.exe (nt+0x16C4C0)
Bugcheck code: 0x133 (0x1, 0x1E00, 0xFFFFF80130478348, 0x0)
Error: DPC_WATCHDOG_VIOLATION
file path: C:\WINDOWS\system32\ntoskrnl.exe
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: NT Kernel & System
Bug check description: The DPC watchdog detected a prolonged run time at an IRQL of DISPATCH_LEVEL or above.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem. This problem might also be caused because of overheating (thermal issue).
The crash took place in the Windows kernel. Possibly this problem is caused by another driver that cannot be identified at this time.



On Wed 19/07/2017 12:44:40 your computer crashed
crash dump file: C:\WINDOWS\Minidump\071917-31843-01.dmp
This was probably caused by the following module: watchdog.sys (watchdog+0x355E)
Bugcheck code: 0x119 (0x2, 0xFFFFFFFFC000000D, 0xFFFF9801A1939960, 0xFFFFD50ACA96D740)
Error: VIDEO_SCHEDULER_INTERNAL_ERROR
file path: C:\WINDOWS\system32\drivers\watchdog.sys
product: Microsoft® Windows® Operating System
company: Microsoft Corporation
description: Watchdog Driver
Bug check description: This indicates that the video scheduler has detected a fatal violation.
The crash took place in a standard Microsoft module. Your system configuration may be incorrect. Possibly this problem is caused by another driver on your system that cannot be identified at this time.

Visto quello che ho letto ho fatto un chddsk /r /f, ho eliminato i driver (comunque già aggiornati) della VGA con "DDU" e ho reinstallato gli ultimi di Nvidia. Niente ancora crash.
Visto che su questo laptop non l'avevo mai fatto ho deciso di provare con una formattazione del PC, tramite partizione asus ho ripristinato il PC alle condizioni di fabbrica (windows 8.1) e fatto fare gli aggiornamenti fino a tornare a windows 10. Aggiornato i driver (nel frattempo è uscita una versione più recente) e reinstalalto League of Legend purtroppo ho constatato che i crash ci sono ancora. Ecco il nuovo report di "whocrashed":

Crash dump directory: C:\WINDOWS\Minidump

Crash dumps are enabled on your computer.

On Mon 24/07/2017 21:56:48 your computer crashed
crash dump file: C:\WINDOWS\Minidump\072417-26593-01.dmp
This was probably caused by the following module: nvlddmkm.sys (nvlddmkm+0x3594D)
Bugcheck code: 0x1000007E (0xFFFFFFFFC0000005, 0xFFFFF803B94E594D, 0xFFFFAE0019646608, 0xFFFFAE0019645E50)
Error: SYSTEM_THREAD_EXCEPTION_NOT_HANDLED_M
file path: C:\WINDOWS\System32\DriverStore\FileRepository\nvami.inf_amd64_15c6c286fd4435fd\nvlddmkm.sys
product: NVIDIA Windows Kernel Mode Driver, Version 384.94
company: NVIDIA Corporation
description: NVIDIA Windows Kernel Mode Driver, Version 384.94
Bug check description: This indicates that a system thread generated an exception which the error handler did not catch.
This appears to be a typical software driver bug and is not likely to be caused by a hardware problem.
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: nvlddmkm.sys (NVIDIA Windows Kernel Mode Driver, Version 384.94 , NVIDIA Corporation).
Google query: NVIDIA Corporation SYSTEM_THREAD_EXCEPTION_NOT_HANDLED_M



On Mon 24/07/2017 21:56:48 your computer crashed
crash dump file: C:\WINDOWS\memory.dmp
This was probably caused by the following module: nvlddmkm.sys (nvlddmkm+0x3594D)
Bugcheck code: 0x7E (0xFFFFFFFFC0000005, 0xFFFFF803B94E594D, 0xFFFFAE0019646608, 0xFFFFAE0019645E50)
Error: SYSTEM_THREAD_EXCEPTION_NOT_HANDLED
file path: C:\WINDOWS\System32\DriverStore\FileRepository\nvami.inf_amd64_15c6c286fd4435fd\nvlddmkm.sys
product: NVIDIA Windows Kernel Mode Driver, Version 384.94
company: NVIDIA Corporation
description: NVIDIA Windows Kernel Mode Driver, Version 384.94
Bug check description: This bug check indicates that a system thread generated an exception that the error handler did not catch.
A third party driver was identified as the probable root cause of this system error. It is suggested you look for an update for the following driver: nvlddmkm.sys (NVIDIA Windows Kernel Mode Driver, Version 384.94 , NVIDIA Corporation).
Google query: NVIDIA Corporation SYSTEM_THREAD_EXCEPTION_NOT_HANDLED

Da quel poco che capisco sembra essere legato ai driver nvdia. Cosa posso fare?

P.S. pensavo all'inzio fosse la temperatura.. il laptop però è pulito e le temp controllate con "hwmonitor" non superano i 67°C (VGA) e 77°C (CPU). Nel dubbio ho comunque cappato gli fps a 60, abbassato risoluzioni e adesso (scaldando molto meno) crasha comunque.

[gplayer89]

Ho provato a reinstallare dei vecchi driver nvdia (di maggio 2017) è la situazione sembra migliorata.. Non avviene più la BSOD ma quando c'è il crash (c'è comunque più o meno con la stessa frequenza) il video si frezza per circa 10 secondi e poi il pc riprende normalmente.
Ora, posso affermare che il problema è proprio di nvidia e non del mio PC? Possibile che due aggiornamenti di fila peggiorino il problema?
Il fatto che ho abbassato i requisiti (livello dettagli etc.) può aver contribuito?