Intel UHD730 doesn't display 2k 75Hz on external monitor

[haidinhthanh]

 Dear,

  My PC doesn't display 2k (2560x1440) with fresh rate 75Hz although my monitor support 75Hz on 2560x1440. At the moment, it is only support 60Hz maximum in resolution 2560x1440.

I tried to update latest version for intel Graphic Command Center. I also use cable HDMI 1.4, this cable doesn't have any problem because when I connect it by other laptop and it works very work. 

My monitor is ASUS PA278QV and my processor is i5 11400 (intel UHD 730)

Please help me to resolve this problem

[haidinhthanh]

Resolved. I changed my cable from HDMI to DisplayPort . This problem is resolved

[Gezelligheid]

Dear,

I have the same problem as you，but my PC don't have DP interface. Is there any other solution?

My processor is i5 11400(intel UHD 730).

Thank you!

[haidinhthanh]

Dear, 

If your PC don't have DP interface, you will need check your version cable HDMI or you need replace by other interface (VGA ???).  Problem not exporting 75Hz is not due to software. 

[Gezelligheid]

Thank you very much! I will try it.😁

[AndrewG_Intel]

Hello @haidinhthanh

Thank you for posting on the Intel® communities.

We understand that this issue has been solved after changing the cable. In this case, we will proceed to close this thread now. If you need any additional information, please submit a new question as this thread will no longer be monitored.

Thank you for taking the time to share how you resolved the problem.

Best regards,

Andrew G.

Intel Customer Support Technician

[Alx24]

In the latest document "CTA-861-G" no VIC at all corresponding to the resolution of 2560x1440 @ 75Hz and respectively timings.

https://pdfcoffee.com/cta-861-gfinalrevised2017pdf-pdf-free.html

...

86 2560 1080 Prog 3750 1190 1100 20 26.400 24.0003 99.000
87 2560 1080 Prog 3200 640 1125 45 28.125 25.000 90.000
88 2560 1080 Prog 3520 960 1125 45 33.750 30.0003 118.800

113 2560 1080 Prog 3750 1190 1100 20 52.800 48.0003 198.000

89 2560 1080 Prog 3300 740 1125 45 56.250 50.000 185.625

90 2560 1080 Prog 3000 440 1100 20 66.000 60.0003 198.000

91 2560 1080 Prog 2970 410 1250 170 125.000 100.00 371.250

92 2560 1080 Prog 3300 740 1250 170 150.000 120.003 495.000

...

86 2560x1080p 23.98Hz/24Hz 64:276 1:1
87 2560x1080p 25Hz 64:276 1:1
88 2560x1080p 29.97Hz/30Hz 64:276 1:1
89 2560x1080p 50Hz 64:276 1:1
90 2560x1080p 59.94Hz/60Hz 64:276 1:1
91 2560x1080p 100Hz 64:276 1:1
92 2560x1080p 119.88/120Hz 64:276 1:1

113 2560x1080p 47.95Hz/48Hz 64:276 1:1

...

86 2560x1080p @ 23.98Hz/24Hz No Repetition No
87 2560x1080p @ 25Hz No Repetition No
88 2560x1080p @ 29.97Hz/30Hz No Repetition No
89 2560x1080p @ 50Hz No Repetition No
90 2560x1080p @ 59.94/60Hz No Repetition No
91 2560x1080p @ 100Hz No Repetition No
92 2560x1080p @ 119.88Hz/120Hz No Repetition No

113 2560x1080p @ 47.95Hz/48Hz No Repetition No

86-92, 113 1080 Progressive 2560 x 1080 1 – 2560 - - 1 – 1080

Using the standard Windows program regedit.exe
you can find the registry key

Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\DISPLAY

in it to find your display and in "Device Parameters" EDID.
Windows 11 already gives a full multi-block EDID and export to a file.
Or use the capabilities of standard display shells of AMD Inc. or NVIDIA.Corp.
You can then analyze the modes mentioned in it in the timing descriptors, for example, using online edidreader.com
or other programs.
As noted by Intel Consumer Support in response to a similar question, timings are not specific to the interface.
The information for the timings of the display must be in CTA-861-G, EDID, DisplayID display or
as usual for the display in the "Driver Package"

https://www.asus.com/us/Displays-Desktops/Monitors/ProArt/ProArt-Display-PA278QV/HelpDesk_Download/

In the days of analog displays, you could see that the quality of the image on the same display depends on
from video adapter and cable and more solid and thick cables give better image and can have
longer length. Also HDMI cables - compared to 5 ft 10 ft even thicker than standard computer cables
power cables and their softness can be concluded about a slightly different technology used. In any case, included
display cable must ensure normal display functioning in all modes unless otherwise specified.
There are also "Fiber Optic HDMI Cables".

Alx24.

[Alx24]

In the latest document "CTA-861-G" no VIC at all corresponding to the resolution of 2560x1440 @ 75Hz and respectively timings.

https://pdfcoffee.com/cta-861-gfinalrevised2017pdf-pdf-free.html

...

86 2560 1080 Prog 3750 1190 1100 20 26.400 24.0003 99.000
87 2560 1080 Prog 3200 640 1125 45 28.125 25.000 90.000
88 2560 1080 Prog 3520 960 1125 45 33.750 30.0003 118.800

113 2560 1080 Prog 3750 1190 1100 20 52.800 48.0003 198.000

89 2560 1080 Prog 3300 740 1125 45 56.250 50.000 185.625

90 2560 1080 Prog 3000 440 1100 20 66.000 60.0003 198.000

91 2560 1080 Prog 2970 410 1250 170 125.000 100.00 371.250

92 2560 1080 Prog 3300 740 1250 170 150.000 120.003 495.000

...

86 2560x1080p 23.98Hz/24Hz 64:276 1:1
87 2560x1080p 25Hz 64:276 1:1
88 2560x1080p 29.97Hz/30Hz 64:276 1:1
89 2560x1080p 50Hz 64:276 1:1
90 2560x1080p 59.94Hz/60Hz 64:276 1:1
91 2560x1080p 100Hz 64:276 1:1
92 2560x1080p 119.88/120Hz 64:276 1:1

113 2560x1080p 47.95Hz/48Hz 64:276 1:1

...

86 2560x1080p @ 23.98Hz/24Hz No Repetition No
87 2560x1080p @ 25Hz No Repetition No
88 2560x1080p @ 29.97Hz/30Hz No Repetition No
89 2560x1080p @ 50Hz No Repetition No
90 2560x1080p @ 59.94/60Hz No Repetition No
91 2560x1080p @ 100Hz No Repetition No
92 2560x1080p @ 119.88Hz/120Hz No Repetition No

113 2560x1080p @ 47.95Hz/48Hz No Repetition No

86-92, 113 1080 Progressive 2560 x 1080 1 – 2560 - - 1 – 1080

Using the standard Windows program regedit.exe
you can find the registry key

Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\DISPLAY

in it to find your display and in "Device Parameters" EDID.
Windows 11 already gives a full multi-block EDID and export to a file.
Or use the capabilities of standard display shells of AMD Inc. or NVIDIA.Corp.

Прочитать программно EDID монитора можно так:

https://docs.microsoft.com/en-us/windows/desktop/wmicoreprov/wmigetmonitorraweedidv1block-wmimonitordescriptormethods

You can then analyze the modes mentioned in it in the timing descriptors, for example, using online edidreader.com
or other programs.
As noted by Intel Consumer Support in response to a similar question, timings are not specific to the interface.
The information for the timings of the display must be in CTA-861-G, EDID, DisplayID display or
as usual for the display in the "Driver Package"

https://www.asus.com/us/Displays-Desktops/Monitors/ProArt/ProArt-Display-PA278QV/HelpDesk_Download/

In the days of analog displays, you could see that the quality of the image on the same display depends on
from video adapter and cable and more solid and thick cables give better image and can have
longer length. Also HDMI cables - compared to 5 ft 10 ft even thicker than standard computer cables
power cables and their softness can be concluded about a slightly different technology used. In any case, included
display cable must ensure normal display functioning in all modes unless otherwise specified.

Signal propagation in high-speed HDMI interface is significantly different from standing wave mode and the same
potential along the entire line of low-speed signals. At 18Gb/s and a speed per one differential line 6Gb/s, there are 5 half-waves along the 5ft cable.

There are also "Fiber Optic HDMI Cables".

Alx24.