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5526 Posts

04-25-2008

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  • Message 41 of 48

Re:X1C 6th Gen - Lenovo revoking support for 5120x1440 ultra-wide

2020-09-03, 23:38 PM

I'm marking the post with Intel's description of the problem and fix as the solution.

USB-C: Just cos it fits don't mean it works.
I don't work for Lenovo. I'm a crazy volunteer!
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10-01-2020

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  • Message 42 of 48

Re:X1C 6th Gen - Lenovo revoking support for 5120x1440 ultra-wide

2020-10-01, 5:09 AM

Hi All,

 

I was able to add custom resolution  5120x1440 but only at 45hz, that only after updating intel uhd drivers to 7262 version. Watching video sucks at this refresh rate(horizontal  lines).When I tried to add 60hz it says mode not supported. I tried various other driver versions as mentioned  in this forum but no luck. 

 

Laptop - Lenovo ideapad flex pro 

Monitor- AOC 49 inch ultrawide. 

Connected to monitor  using DP cable and HP USB C dock.

 

Anyone who was able to add 60hz to your resolution, can you please provide what worked for you?

 

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573 Posts

06-26-2016

Germany

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Re:X1C 6th Gen - Lenovo revoking support for 5120x1440 ultra-wide

2020-10-01, 8:56 AM

@ Wall-e21 wrote:
 

 

Laptop - Lenovo ideapad flex pro 

Monitor- AOC 49 inch ultrawide. 

Connected to monitor  using DP cable and HP USB C dock.

 

this will never work on a USB-C dock with DP1.2 systems. You need to connect the monitor to the system w/o any dock. 

 

Your system supports DP (DisplayPort) version 1.2.  Your monitor's native resolution @ 60HZ  requires ca 70-75% of DP1.2 data rate. 

Connecting a USB-C dock to the system reduces the available data rate for DP  to 50%,  because USB data for LAN, audio, USB ports etc.  also needs to be transmitted to dock.
Therefore the required data rate of the monitor exceeds the available data rate for DP1.2.

 

This means,  you can connect one QHD  (2560x1440@60Hz) monitor to the USB-C dock but not two QHD monitors. 

 

Tech-Savvyness does not replace reading the fine manual.
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10-01-2020

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  • Message 44 of 48

Re:X1C 6th Gen - Lenovo revoking support for 5120x1440 ultra-wide

2020-10-01, 19:59 PM

Thanks for the response. My laptop only has thunderbolt 3 ports and my monitor only has USB type c which doesnt support 5210x1440. the best suggestion is to use thunderbolt dock with DP1.4 capability? Do you think it will not support 5120x1440 @60Hz  in that case too? 

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573 Posts

06-26-2016

Germany

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Re:X1C 6th Gen - Lenovo revoking support for 5120x1440 ultra-wide

2020-10-02, 10:09 AM

 

Thunderbolt 3 host ports (on system) are compatible to USB type C ports. You can still attach USB-C displays etc.  

You can use a ucb-c to usb-c cable to connect monitor to system.  If monitor has built-in USB3 ports, then you need to configure the USB ports to USB2 speed. Otherwise you get the same limits like the USB-C dock.

You can also use a USB-C to DP cable. This will give you 100% data rate of DP1.2.

 

a Thunderbolt 3 dock should do the job here as well, but the system is setting the limits here (DP1.2). 
Check the compatibility matrix first before buying a thunderbolt 3 dock.

Tech-Savvyness does not replace reading the fine manual.
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1 Posts

12-20-2020

Romania

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  • Message 46 of 48

Re:X1C 6th Gen - Lenovo revoking support for 5120x1440 ultra-wide

2020-12-20, 23:14 PM

Guys, any fix for the AMD Radeon graphics? My Lenovo doesn't have Intel and I have the same issue, bought a Philips 498P9 and can't get the 5120x1440 resolution. Thanks. 

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07-27-2020

United States of America

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  • Message 47 of 48

Re:X1C 6th Gen - Lenovo revoking support for 5120x1440 ultra-wide

2020-12-22, 14:27 PM

Recently, I did the windows update and it wiped out my settings.  So I had to do it over again.  I connect T490s to Dell U4919 via USB C. Here are the details.

 

Intel drivers that I have been using are downloaded from intel here:  https://downloadcenter.intel.com/product/126789

 

igfx_win10_100.8190 (I used this one for 3 months until windows updated wiped it out; it was stable)

igfx_win10_100.9030 (latest) (I'm using this one now).

 

Note that after Windows Update, I had some problems installing ifgx driver.  I saw a program "Microsoft Compatibility Telemetry" under Task Manager.  So I ended this task and the igfx then was able to be installed.  Not really sure if this step is really needed. 

 

Install "Intel UHD Graphics Control Panel" program on your laptop. You should be able to find this program on intel's website.

 

Run Intel UHD Graphics Control Panel

Click on Display

Click on "Custom Resolutions"

Select Display --> U4919dw (Make sure to do this step.  Otherwise, it defaults to the laptop screen and it won't work).

Width - 5120

Height - 1440

Refresh Rate - 60

Click on "Add"

 

Now, go to windows display settings.  Select the u4919dw monitor.  Select the display resolution (5120x1440). It should work now. You might have to reboot.

 

You might have to try a few times.  But it works for me.  Good luck.

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1 Posts

06-04-2021

Switzerland

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  • Message 48 of 48

Re:X1C 6th Gen - Lenovo revoking support for 5120x1440 ultra-wide

2021-06-04, 11:55 AM
Finally! After hours of frustration, trying every trick I could find online, adding a custom 5120x1440 resolution via the "Intel Graphics Command Center" app was the key. Thank you! For reference, this is my setup: Computer: ThinkPad T14 Gen 1/Intel Core i7-10510U Driver: igfx_win10_100.9616 Monitor: DELL U4919DW
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