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DWM.exe frequent crashes on MUX switch (Win11 24H2, SCAR 18 G834JY)

hexaae
Level 14

Since I "upgraded" to famigerate 24H2 [26100.2894] in December, with any NVidia driver I tested (ASUS recommended 565.07, 566.xx, 565.xx, 561.09, 560.81, 551.86) + NVidia App 11.0.1.189, I have frequent* DWM.exe crashes on MUX switch from iGPU --> dGPU-only.
Never seen this before with 23H2.

ASUS SCAR 18 (2023) G834JY.331, i9-13980HX, 32GB DDR5 5600MHz, 4090 Laptop 16GB 175W 256bit (AD103, rev. A1, ID: 10DE 2757 - 1043 21FD, VBIOS: 95.03.2b.00.30), 2560x1600 16:10 G-Sync 240Hz screen. Games launched from Advanced Optimus mode iGPU-> dGPU.
Win 11 settings: HAGS all ON (see pic: https://i.ibb.co/SXHqK2R/image.png )

Usual things (uninstall/reinstall NVidia App and drivers, DDU, DISM, SFC etc.) don't help.


* frequent = usually after a while but randomly, can't find a pattern except it happens more often after I resume gaming laptop from Hibernation, and try games like Rise of Tomb Raider, F.I.S.T., Hogwarts Legacy and other games able to MUX switch to dGPU-only.

Examples (Win11 24H2 ITA):
Nome applicazione con errore: dwm.exe, versione: 10.0.26100.2454, timestamp: 0x102c19e2
Nome modulo non valido: ntdll.dll, versione: 10.0.26100.2454, timestamp: 0x7cb6b6a8
Codice eccezione: 0xc0000005
Offset errore: 0x0000000000021eac
Id di processo in errore: 0xB5C
Ora di avvio dell'applicazione in errore: 0x1DB68E9955331E8
Percorso dell'applicazione in errore: C:\WINDOWS\system32\dwm.exe
Percorso del modulo in errore: C:\WINDOWS\SYSTEM32\ntdll.dll
Id di rapporto: 15487cee-793e-44f3-8d10-fc3698a3c427

Nome applicazione con errore: dwm.exe, versione: 10.0.26100.2454, timestamp: 0x102c19e2
Nome modulo non valido: ntdll.dll, versione: 10.0.26100.2454, timestamp: 0x7cb6b6a8
Codice eccezione: 0xc0000005
Offset errore: 0x000000000001a9dd
Id di processo in errore: 0x6588
Ora di avvio dell'applicazione in errore: 0x1DB691BC5033F2B
Percorso dell'applicazione in errore: C:\WINDOWS\system32\dwm.exe
Percorso del modulo in errore: C:\WINDOWS\SYSTEM32\ntdll.dll
Id di rapporto: b3195c6e-a06b-4471-ae82-661c40586b89

Nome applicazione con errore: dwm.exe, versione: 10.0.26100.2454, timestamp: 0x102c19e2
Nome modulo non valido: ntdll.dll, versione: 10.0.26100.2454, timestamp: 0x7cb6b6a8
Codice eccezione: 0xc0000409
Offset errore: 0x000000000012a95f
Id di processo in errore: 0x6588
Ora di avvio dell'applicazione in errore: 0x1DB691BC5033F2B
Percorso dell'applicazione in errore: C:\WINDOWS\system32\dwm.exe
Percorso del modulo in errore: C:\WINDOWS\SYSTEM32\ntdll.dll
Id di rapporto: acf5829b-f734-4cad-bf02-05717f9303d5

Symptoms:
When it happens, the screen freezes for some seconds (up to 10 secs!) and dwm.exe crashes in background. Then the screen resumes, and the game starts on dGPU-only as nothing happened. I'll find the crash-logs in Events Viewer or Reliability Monitor.
DWM.exe can crash multiple times (2-3 times) in a row when this happens, as the 3 logs above.

// ASUS SCAR18 G834JY, i9-13980HX, 4090 laptop 256bit 16GB, 32GB 5600MHz RAM, 18'' 16:10 2560x1600 240Hz G-Sync internal screen, external UWQHD 3440x1440 Mi 34'' Monitor with Freesync, NVMe, 8BitDo Arcade Stick, Vader 4 Pro controller, ROG Strix Carry mouse.
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1 ACCEPTED SOLUTION

Accepted Solutions

hexaae
Level 14

There's a WORKAROUND at the moment:

uninstall NVidia App altogether.

// ASUS SCAR18 G834JY, i9-13980HX, 4090 laptop 256bit 16GB, 32GB 5600MHz RAM, 18'' 16:10 2560x1600 240Hz G-Sync internal screen, external UWQHD 3440x1440 Mi 34'' Monitor with Freesync, NVMe, 8BitDo Arcade Stick, Vader 4 Pro controller, ROG Strix Carry mouse.

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2 REPLIES 2

hexaae
Level 14

NVidia confirmed they reproduced the issue with 24H2... waiting for next drivers to hopefully fix the random issue.

// ASUS SCAR18 G834JY, i9-13980HX, 4090 laptop 256bit 16GB, 32GB 5600MHz RAM, 18'' 16:10 2560x1600 240Hz G-Sync internal screen, external UWQHD 3440x1440 Mi 34'' Monitor with Freesync, NVMe, 8BitDo Arcade Stick, Vader 4 Pro controller, ROG Strix Carry mouse.

hexaae
Level 14

There's a WORKAROUND at the moment:

uninstall NVidia App altogether.

// ASUS SCAR18 G834JY, i9-13980HX, 4090 laptop 256bit 16GB, 32GB 5600MHz RAM, 18'' 16:10 2560x1600 240Hz G-Sync internal screen, external UWQHD 3440x1440 Mi 34'' Monitor with Freesync, NVMe, 8BitDo Arcade Stick, Vader 4 Pro controller, ROG Strix Carry mouse.