XPS15 9500 & Windows 11 - not triggering external display at boot


mikolajek

mikolajek

Well-known member
Local time
8:32 PM
Posts
47
Location
Warsaw, PL
OS
Win11 Pro 25H2
I have a XPS15 9500 teamed with the WD19TB docking station with two external displays, connected via DisplayPort (primary) and USB-C (secondary). All equipment has the latest available drivers installed.

I've recently upgraded to Windows 11 and now when I start up my system (via the dock button), it does start but there's no display on my primary monitor. The only way to get the display working is to force the shutdown (by holding the dock button) and re-powering the system.

This was never an issue with Windows 10, any build, so I suppose it's Windows 11 that's responsible for it. Regardless, have any of the folks here had a similar issue and possibly found a workaround?
 
Windows Build/Version
22000.194

My Computer My Computer

At a glance

Win11 Pro 25H2
OS
Win11 Pro 25H2
Computer type
Laptop
Manufacturer/Model
Dell XPS14 9440
Monitor(s) Displays
2 x Dell UltraSharp U2718Q 4K
Screen Resolution
4K
Keyboard
Dell KB900
Mouse
Razer Cobra Pro
Internet Speed
1 Gbps
Other Info
Dell WD22TB4 dock
have a look at the bottom of this post it may help

docs.microsoft.com

Kernel DMA Protection

Learn how Kernel DMA Protection protects Windows devices against drive-by Direct Memory Access (DMA) attacks using PCI hot plug devices.
docs.microsoft.com

It's a GPO setting set it to "allow all"
Administrative Templates\System\Kernel DMA Protection\Enumeration policy for external devices incompatible with Kernel DMA Protection
 

My Computer My Computer

At a glance

Windows 11AMD 3990XCORSAIR Vengeance RGB PRO (4x16GB) DDR4 3600 ...Asus ROG Strix RTX 3090
OS
Windows 11
Computer type
PC/Desktop
CPU
AMD 3990X
Motherboard
ASUS ROG Zenith II Extreme
Memory
CORSAIR Vengeance RGB PRO (4x16GB) DDR4 3600 (PC4-28800) C18
Graphics Card(s)
Asus ROG Strix RTX 3090
Monitor(s) Displays
Samsung Odyssey G9 @ 240 Hz
Screen Resolution
5120 x 1440
Hard Drives
SEKC SM2502T 2TB NVMe M.2 (2TB X 3)
PSU
Corsair AXi Series, AX1600i, 1600 Watt, 80+ Titanium Certified, Fully Modular
Case
BGW10 Dark Base PRO 900 ATX
Cooling
Corsair Hydro Series iCUE H115i PRO XT RGB (280mm)
Keyboard
SteelSeries Apex Pro
Mouse
Logitech MX Master 3
Thank you for this tip, @Ruben!

It looks you're right - thanks to your advice I've found this Dell support article, and WD19TB is listed as affected.
It concerns however machines connected to a domain and I'm not connected... Would it still be applicable to me?
 

My Computer My Computer

At a glance

Win11 Pro 25H2
OS
Win11 Pro 25H2
Computer type
Laptop
Manufacturer/Model
Dell XPS14 9440
Monitor(s) Displays
2 x Dell UltraSharp U2718Q 4K
Screen Resolution
4K
Keyboard
Dell KB900
Mouse
Razer Cobra Pro
Internet Speed
1 Gbps
Other Info
Dell WD22TB4 dock
go ahead and make the changes in the GPO
It's a GPO setting, and I set it to "allow all"
Administrative Templates\System\Kernel DMA Protection\Enumeration policy for external devices incompatible with Kernel DMA Protection

Reboot...
 

My Computer My Computer

At a glance

Windows 11AMD 3990XCORSAIR Vengeance RGB PRO (4x16GB) DDR4 3600 ...Asus ROG Strix RTX 3090
OS
Windows 11
Computer type
PC/Desktop
CPU
AMD 3990X
Motherboard
ASUS ROG Zenith II Extreme
Memory
CORSAIR Vengeance RGB PRO (4x16GB) DDR4 3600 (PC4-28800) C18
Graphics Card(s)
Asus ROG Strix RTX 3090
Monitor(s) Displays
Samsung Odyssey G9 @ 240 Hz
Screen Resolution
5120 x 1440
Hard Drives
SEKC SM2502T 2TB NVMe M.2 (2TB X 3)
PSU
Corsair AXi Series, AX1600i, 1600 Watt, 80+ Titanium Certified, Fully Modular
Case
BGW10 Dark Base PRO 900 ATX
Cooling
Corsair Hydro Series iCUE H115i PRO XT RGB (280mm)
Keyboard
SteelSeries Apex Pro
Mouse
Logitech MX Master 3
Done and seems to work! I hope it was not an exception, but I will keep observing!
 

My Computer My Computer

At a glance

Win11 Pro 25H2
OS
Win11 Pro 25H2
Computer type
Laptop
Manufacturer/Model
Dell XPS14 9440
Monitor(s) Displays
2 x Dell UltraSharp U2718Q 4K
Screen Resolution
4K
Keyboard
Dell KB900
Mouse
Razer Cobra Pro
Internet Speed
1 Gbps
Other Info
Dell WD22TB4 dock
mikolajek said:
Done and seems to work! I hope it was not an exception, but I will keep observing!
Click to expand...

Don't loose your sleep over it. It will work and if doesn't for some vague reason you now know where to change the settings just go back in there and disable it and then re-enable it
 

My Computer My Computer

At a glance

Windows 11AMD 3990XCORSAIR Vengeance RGB PRO (4x16GB) DDR4 3600 ...Asus ROG Strix RTX 3090
OS
Windows 11
Computer type
PC/Desktop
CPU
AMD 3990X
Motherboard
ASUS ROG Zenith II Extreme
Memory
CORSAIR Vengeance RGB PRO (4x16GB) DDR4 3600 (PC4-28800) C18
Graphics Card(s)
Asus ROG Strix RTX 3090
Monitor(s) Displays
Samsung Odyssey G9 @ 240 Hz
Screen Resolution
5120 x 1440
Hard Drives
SEKC SM2502T 2TB NVMe M.2 (2TB X 3)
PSU
Corsair AXi Series, AX1600i, 1600 Watt, 80+ Titanium Certified, Fully Modular
Case
BGW10 Dark Base PRO 900 ATX
Cooling
Corsair Hydro Series iCUE H115i PRO XT RGB (280mm)
Keyboard
SteelSeries Apex Pro
Mouse
Logitech MX Master 3
Yeah, it still gives me a heartstop when booting up, as I'm getting the display's "I'm going to sleep" message anyway... But it wouldn't go to sleep eventually, just scares me to do so. ;)

Quite interesting this wasn't an issue on Win10 where the same mechanism has been long-existing...
 

My Computer My Computer

At a glance

Win11 Pro 25H2
OS
Win11 Pro 25H2
Computer type
Laptop
Manufacturer/Model
Dell XPS14 9440
Monitor(s) Displays
2 x Dell UltraSharp U2718Q 4K
Screen Resolution
4K
Keyboard
Dell KB900
Mouse
Razer Cobra Pro
Internet Speed
1 Gbps
Other Info
Dell WD22TB4 dock
Unfortunately, this is still happening and it's getting worse - sometimes my monitors won't go to sleep when the system has been powered off.

Shouldn't I change some UEFI settings? I've turned off Thunderbolt security completely and enabled TB pre-boot modules to access USB devices instantly, but I don't think it's brought any change...
 

My Computer My Computer

At a glance

Win11 Pro 25H2
OS
Win11 Pro 25H2
Computer type
Laptop
Manufacturer/Model
Dell XPS14 9440
Monitor(s) Displays
2 x Dell UltraSharp U2718Q 4K
Screen Resolution
4K
Keyboard
Dell KB900
Mouse
Razer Cobra Pro
Internet Speed
1 Gbps
Other Info
Dell WD22TB4 dock
The cause is most likely bad drivers that do not support Kernel DMA Protection and "DMA-remapping" most probably it could be Nvidia head over to the Nvidia forums and ask them if they do know about a driver which does support the above
 

My Computer My Computer

At a glance

Windows 11AMD 3990XCORSAIR Vengeance RGB PRO (4x16GB) DDR4 3600 ...Asus ROG Strix RTX 3090
OS
Windows 11
Computer type
PC/Desktop
CPU
AMD 3990X
Motherboard
ASUS ROG Zenith II Extreme
Memory
CORSAIR Vengeance RGB PRO (4x16GB) DDR4 3600 (PC4-28800) C18
Graphics Card(s)
Asus ROG Strix RTX 3090
Monitor(s) Displays
Samsung Odyssey G9 @ 240 Hz
Screen Resolution
5120 x 1440
Hard Drives
SEKC SM2502T 2TB NVMe M.2 (2TB X 3)
PSU
Corsair AXi Series, AX1600i, 1600 Watt, 80+ Titanium Certified, Fully Modular
Case
BGW10 Dark Base PRO 900 ATX
Cooling
Corsair Hydro Series iCUE H115i PRO XT RGB (280mm)
Keyboard
SteelSeries Apex Pro
Mouse
Logitech MX Master 3
I talked to Dell Support and they told me they believed it was Windows 11 issue, but they needed to isolate it and release the updated drivers.

Just getting nVidia driver updated to the latest version, let's see if this helps.
 

My Computer My Computer

At a glance

Win11 Pro 25H2
OS
Win11 Pro 25H2
Computer type
Laptop
Manufacturer/Model
Dell XPS14 9440
Monitor(s) Displays
2 x Dell UltraSharp U2718Q 4K
Screen Resolution
4K
Keyboard
Dell KB900
Mouse
Razer Cobra Pro
Internet Speed
1 Gbps
Other Info
Dell WD22TB4 dock
Yeah I hope so the Nvidia driver update gets your system fixed or Dell releasing a driver for the same.. keep us updated on the same nevertheless
 

My Computer My Computer

At a glance

Windows 11AMD 3990XCORSAIR Vengeance RGB PRO (4x16GB) DDR4 3600 ...Asus ROG Strix RTX 3090
OS
Windows 11
Computer type
PC/Desktop
CPU
AMD 3990X
Motherboard
ASUS ROG Zenith II Extreme
Memory
CORSAIR Vengeance RGB PRO (4x16GB) DDR4 3600 (PC4-28800) C18
Graphics Card(s)
Asus ROG Strix RTX 3090
Monitor(s) Displays
Samsung Odyssey G9 @ 240 Hz
Screen Resolution
5120 x 1440
Hard Drives
SEKC SM2502T 2TB NVMe M.2 (2TB X 3)
PSU
Corsair AXi Series, AX1600i, 1600 Watt, 80+ Titanium Certified, Fully Modular
Case
BGW10 Dark Base PRO 900 ATX
Cooling
Corsair Hydro Series iCUE H115i PRO XT RGB (280mm)
Keyboard
SteelSeries Apex Pro
Mouse
Logitech MX Master 3
I've updated nVidia and Intel Thunderbolt drivers to the latest versions available. nVidia's is dated at Oct 26, so hopefully it's been tested with Windows 11. I can't say the same on the TB one, but it's newer than the one I had on my system. None of those have been blessed by Dell, but I expect no trouble with them. I hope they will be the cure for my issue as well ;).
 

My Computer My Computer

At a glance

Win11 Pro 25H2
OS
Win11 Pro 25H2
Computer type
Laptop
Manufacturer/Model
Dell XPS14 9440
Monitor(s) Displays
2 x Dell UltraSharp U2718Q 4K
Screen Resolution
4K
Keyboard
Dell KB900
Mouse
Razer Cobra Pro
Internet Speed
1 Gbps
Other Info
Dell WD22TB4 dock
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