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hi team,
could you please help out with the answer for the question from the topic title?
A similar question was asked & Sebastian answered here, but I`m asking from a bit of a different angle.
community.intel.com/t5/Graphics/%C4%B0ntel-Hd-Graphics-620-120hz/m-p/1242212#M92978
the reason I`m asking this again after reading Sebastian's answer from the link above, is, that he was stating:
"1080o @ 120 or 144Hz need a bandwidth of 7.46 Gbps or 8.96 Gbps respectively, so the bandwidth via HDMI is not enough. " he meant here the 1.4 HDMI
now my question from a different angle, is: what about the following scenario:
running on a laptop: Lenovo ThinkPad T590 - with UHD Graphics 620, connected then to a: ThinkPad USB-C Dock Gen 2 and then connecting a monitor with say 120Hz capability.
would this work?
I'm thinking about the following scenario:
using the USB 3.1 Gen 2 (10 Gbps) cable to connect laptop to ThinkPad USB-C Dock Gen 2 and then from the Docking station to connect through as well a USB 3.1 Gen 2 (10 Gbps) to a monitor that supports 120Hz.
by doing so, theoretically can one surpass the problem of the 1.4 HDMI limitation of data transfer mentioned above.
thanks in advance for a clarification answer
Silviu
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hello,
thought it would make sense to post my test results:
machine used: Lenovo ThinkPad T590 (with UHD Graphics 620)
desired result: connect & deliver higher refresh rate than 60 Hz connecting it with such a monitor at 1920 x 1080 p
port limitation of machine: Lenovo ThinkPad T590 (with UHD Graphics 620) --> 1.4 HDMI
1st machine : Lenovo ThinkPad T590 (with UHD Graphics 620)
connected through thunderbolt USB-C cable
2nd machine: ThinkPad USB-C Dock Gen 2
connected through HDMI cable from HDMI 2.0 port of the Thinkpad docking station to the HDMI port of the monitor with 144 Hz at 1920 x 1080 p.
Result: worked fine
now I`m trying to find a second monitor with higher refresh rate, to check if it can deliver signal to 2 monitors at higher refresh rates. (eg. 120 Hz or 144 Hz)
all the best,
Silviu
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Hello silviudx,
Thank you for posting on the Intel®️ communities. I see that you want to know the resolution supported for your Intel® UHD Graphics 620, I will be happy to help you.
To have a better understanding of the situation, please answer the following questions:
- Just to clarify the resolution you want to use is 1920 x 1080 with a refresh rate higher than 60Hz using HDMI, is that correct?
- Are you able to use another port just for testing?
- Download, run, save and attach the report for the following tool Intel® System Support Utility for Windows (SSU), you can find the steps on the link How to get the Intel® System Support Utility Logs on Windows.
Regards,
Andres P.
Intel Customer Support Technician
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Hello silviudx,
Were you able to check the previous post?
Let us know if you still need assistance.
Best regards,
Andres P.
Intel Customer Support Technician
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Yes, thaelt was the question, but then I later replied in the 2nd post of this topic that I did manage to do so, by using the thunderbolt USB-C port and connecting it to a Thinkpad docking station which has 2.0 HDMI ports and through that connecting it to a monitor and it delivered the 1080p resolution with 144 Hz.
I haven t managed to try it out with 2 monitors (@144 Hz) as I didn t have the necessary hardware at hand.
Anyway, from my point of view, thread can be closed.
All the best,
Silviu
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Hello silviudx,
Thank you for your response.
Happy to hear that seems the issue is fixed, so we will close this thread. If you need any additional information, please submit a new question as this thread will no longer be monitored.
Best regards,
Andres P.
Intel Customer Support Technician

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