Windows 11 does not work with monitor using Display Port?


I'm still waiting Asus to respond me back :-) I've sent dxdiag output, some videos showing what's happening, etc.
 

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Windows 11 ProIntel I7 12700k2x16Gb Corsair Vengeance LPX DDR4 3600 MHzIntegrated Intel 770 UHD
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Windows 11 Pro
Computer type
PC/Desktop
Manufacturer/Model
Own
CPU
Intel I7 12700k
Motherboard
Asus Prime Z690-P Wifi D4
Memory
2x16Gb Corsair Vengeance LPX DDR4 3600 MHz
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Integrated Intel 770 UHD
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Integrated
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Philips 241b8q
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1920x1080
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Did you look into monitor settings? Of course this won't explain why it suddenly stopped working.
 

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Linux
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Linux
Did you look into monitor settings? Of course this won't explain why it suddenly stopped working.
Of course my friend, nothing to do there...
 

My Computer My Computer

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Windows 11 ProIntel I7 12700k2x16Gb Corsair Vengeance LPX DDR4 3600 MHzIntegrated Intel 770 UHD
OS
Windows 11 Pro
Computer type
PC/Desktop
Manufacturer/Model
Own
CPU
Intel I7 12700k
Motherboard
Asus Prime Z690-P Wifi D4
Memory
2x16Gb Corsair Vengeance LPX DDR4 3600 MHz
Graphics Card(s)
Integrated Intel 770 UHD
Sound Card
Integrated
Monitor(s) Displays
Philips 241b8q
Screen Resolution
1920x1080
Hard Drives
WD_BLACK SN850 500 GB
Corsair MP600 Pro SSD 1TB
PSU
be quiet! Pure Power 11 cm ATX PC 600W 80Plus Gold
Case
be quiet! Pure Base 600
Cooling
Noctua NH-D15S
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Logi
Installing WIndows 11 from USB, with the computer connected using Display Port to the monitor.

Asus Prime Z690 Wifi D4 + Intel I7 12700k processor with Intel Integrated UHD Intel 770 graphic card
Philips 241b8q monitor connected using Display Port 1.2 4k UHD cable

Computer boots, BIOS, etc. Boot menu, I choose boot from USB, it boots. Then the installation wizard is shown, I select language, installation target disk, etc. etc. the installation begins... it does many things, and after a while, I'm asked to enter my user, and then screen seems to switch off and does not shown anything more ¿?

Computer seems to keep working, the Monitor continues working.... but nothing is shown in screen

what's happening with display port???
Ummm, It works with mine with no problem
 

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    Windows 11 Pro x64 24H2 v26100.2894AMD Ryzen 7 1800X @ 3.60Ghz16GBAMD RX580
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    CPU
    AMD Ryzen 7 1800X @ 3.60Ghz
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    Asus Crosshair VI Hero
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    16GB
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    LG 27UK650-W 27", eMachine 22"
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    I use this computer for photo/video editing and to track severe weather
Latests test I've done and I've sent in videos, showing the issue to Asus:

  1. Booting with Display Port -> I start seeing boot, etc. Windows loading, but it goes black… and I’ve to disconnect DP in computer after more than 1:10 minutes and connect DP cable again. And then I got Windows 11 screen OK.
  2. Switch off monitor with Display Port KO -> I have Windows 11 working with display port, then I switch off monitor (power front button) and when I swicht on back again, it goes black… I’ve to disconnect DP in computer and connect DP again, and then I got Windows 11 screen OK
  3. Boting with HDMI -> everything Works ok, in few seconds it boots and i get Windows screen OK
  4. Switch off monitor with HDMI -> I have Windows 11 working with hdmi , then I switch off monitor (power front button) and when I swicht on back again it Works OK
 

My Computer My Computer

At a glance

Windows 11 ProIntel I7 12700k2x16Gb Corsair Vengeance LPX DDR4 3600 MHzIntegrated Intel 770 UHD
OS
Windows 11 Pro
Computer type
PC/Desktop
Manufacturer/Model
Own
CPU
Intel I7 12700k
Motherboard
Asus Prime Z690-P Wifi D4
Memory
2x16Gb Corsair Vengeance LPX DDR4 3600 MHz
Graphics Card(s)
Integrated Intel 770 UHD
Sound Card
Integrated
Monitor(s) Displays
Philips 241b8q
Screen Resolution
1920x1080
Hard Drives
WD_BLACK SN850 500 GB
Corsair MP600 Pro SSD 1TB
PSU
be quiet! Pure Power 11 cm ATX PC 600W 80Plus Gold
Case
be quiet! Pure Base 600
Cooling
Noctua NH-D15S
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Logi
Mouse
Logi
Checking the specs of the integrated GPU: Product Specifications

Processor Graphics​

  • Processor Graphics ‡Intel® UHD Graphics 770
  • Graphics Base Frequency300 MHz
  • Graphics Max Dynamic Frequency1.50 GHz
  • Graphics OutputeDP 1.4b, DP 1.4a, HDMI 2.1

Checking the specs of the Monitor: searching this Phillips site shows 2 models, 41B8QTAA/27 and 241B8QJEB/27 but the tech specs for them look to be similar.


Connectivity

Signal Input
  • VGA (Analog )
  • DVI-D (digital, HDCP)
  • DisplayPort 1.2
  • HDMI 1.4

So, your DP 1.2 cable is correct to use - but for some reason Windows may be trying to force a faster connection (perhaps by trying to initiate DSC) to the DP port on the monitor, which I cannot find any reliable information showing that the monitor actually supports it.

Have you tried some of the troubleshooting in the beginning of this general monitor troubleshooting page? b2c.article.details.page.social.title
 

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Checking the specs of the integrated GPU: Product Specifications


Checking the specs of the Monitor: searching this Phillips site shows 2 models, 41B8QTAA/27 and 241B8QJEB/27 but the tech specs for them look to be similar.




So, your DP 1.2 cable is correct to use - but for some reason Windows may be trying to force a faster connection (perhaps by trying to initiate DSC) to the DP port on the monitor, which I cannot find any reliable information showing that the monitor actually supports it.

Have you tried some of the troubleshooting in the beginning of this general monitor troubleshooting page? b2c.article.details.page.social.title
Thnx my friend! I've already checked what kind of DP supported the Monitor... that's the reason because I changed the DP 1.4 cable with another DP 1.2 :-)
My bet was that! but the result is the same :-(
Thnx for the troubleshooting philips page but nothing new to test there!
I'm waiting the third part involved in this issue (ASUS) to let me know something, if they found something to say me ;-)
The fourth part involved (MS Windows 11) has no regular support, and the MS community is plenty of staff in a rush to gain 'kudos' just answering you obvius things to do ... but noone has idea about this missfunction
Thnx!
 

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Windows 11 ProIntel I7 12700k2x16Gb Corsair Vengeance LPX DDR4 3600 MHzIntegrated Intel 770 UHD
OS
Windows 11 Pro
Computer type
PC/Desktop
Manufacturer/Model
Own
CPU
Intel I7 12700k
Motherboard
Asus Prime Z690-P Wifi D4
Memory
2x16Gb Corsair Vengeance LPX DDR4 3600 MHz
Graphics Card(s)
Integrated Intel 770 UHD
Sound Card
Integrated
Monitor(s) Displays
Philips 241b8q
Screen Resolution
1920x1080
Hard Drives
WD_BLACK SN850 500 GB
Corsair MP600 Pro SSD 1TB
PSU
be quiet! Pure Power 11 cm ATX PC 600W 80Plus Gold
Case
be quiet! Pure Base 600
Cooling
Noctua NH-D15S
Keyboard
Logi
Mouse
Logi
Does it work in safe mode? I have used the Displayport on my system, works fine... What bios ver are you running? currently 1003 (Although this should not make any difference). The only issue I had was hardware acceleration In Adobe premier elements.. fixed by hacking the allowed graphics cards list. Intel 770 was not listed.
 

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Windows 11 Pro 25H2Intel Alder lake i7 12700K32 Gb Corsair Vengeance LPX DDR4 3200 XMP2EVGA 3070ti FTW3 Ultra Gaming & Intel Arc
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Windows 11 Pro 25H2
Computer type
PC/Desktop
Manufacturer/Model
My Self
CPU
Intel Alder lake i7 12700K
Motherboard
Asus z690 Gaming WiFi D4, Bios Ver 4505
Memory
32 Gb Corsair Vengeance LPX DDR4 3200 XMP2
Graphics Card(s)
EVGA 3070ti FTW3 Ultra Gaming & Intel Arc
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Via Display port
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Dell AW2723DF
Screen Resolution
2560 x 1440 @ 280Hz G-Sync mode
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WD Black SN850 1Tb NVME (Boot Drive)
WD BLACK SN850X + Heatsink 1Tb NVME
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Synology DS218 play 2 x 4Tb Synology HAT3300-4T
I know you all know a damn sight more than me but did you take out the HDMI cable before plugging in the Display cable. I know because I have done it, when I first got this monitor I was using hmdi and someone said display is better so I plugged that in but left the hdmi in and of course, nothing worked! Par for the course from me! :rolleyes:
 

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    pc specialists build (updated various times)
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    2 channel HD Audio + Mic/Hphone jack
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    coolermaster 27 inch
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    1920 x 1080
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    three external 3TBs, 4 TBs and 5tb. (Storage) Samsung SSD 970 (C).
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    Coolermaster
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    internal fans
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    Logi K270 & Logitech gamer G213
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    M310 and Logi Gamer G203
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    530.85mbps download. 52.70 upload
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    win 11 home 64 Build: 26100.ge_release 240331-1435
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