DeX Pad working with WQHD 2560X1440p resolution - evidence & solutions

aleks3008 · Dec 20, 2009 14 4 0

Here I want to put some screenshots from two YouTube videos about Samsung Dex which shows unlocked (not greyed out) option for WQHD 2560x1440p resolution which gives desired resolution on monitor. Unfortunately, in both videos they using Samsung monitors. This arise question that WQHD resolution is option only for Samsung monitor. I dont know anibody that post screenshot with enabled WQHD resolution on monitors from other vendors.

Is there any solution to get WQHD on other displays which support that resolution or we can say that this question is obsolete and that there is no solution for that problem? On developer.samsung page I saw some runtime options for modifying Dex app including to change resolution to WQHD.

I tested Dex Pad with original HDMI to HDMI cable on Note 8 and get qreyed out option for WQHD (on Sony 55XE8505 4K TV which have no support for MHL). In screen mirroring I get 4k 4096x2160 at 60hz.

Links:
https://youtu.be/umvnRlj9yN8

https://youtu.be/S63wn5nTa5E

ytj87 · Dec 6, 2018 at 12:54 AM

I've been getting x1440 in Dexmode on a non-Sam monitor using a non-Sam DeX hookup. If that matters to your test.

aleks3008 · Dec 20, 2009 14 4 0

Thanks. What is the TV model and non-Sam Dex hookup, and what is the settings on TV? I dont understand where is the problem. Many people reported same problem.

BeatPlay · Dec 15, 2018 at 10:46 AM

Modified the DEX environment a bit in my custom ROM (swapped 2560x1440 with 3440x1440) and can confirm that works with official dock on the LG 34UC98-W. (So I assume 2560x1440 would)
Only thing not working is HDR and 10-bit color, but I think thats more of a problem with the DEX hardware and how its outputting

mwittie · Jan 15, 2019 1 0 0

Could you let us know how you modified the ROM to enable higher Dex resolutions?

server5 · Jan 15, 2019 at 3:46 PM

mwittie said:
Could you let us know how you modified the ROM to enable higher Dex resolutions?

Bump!

TrungHTC · Jan 25, 2015 8 2 0

aleks3008 said:
Here I want to put some screenshots from two YouTube videos about Samsung Dex which shows unlocked (not greyed out) option for WQHD 2560x1440p resolution which gives desired resolution on monitor. Unfortunately, in both videos they using Samsung monitors. This arise question that WQHD resolution is option only for Samsung monitor. I dont know anibody that post screenshot with enabled WQHD resolution on monitors from other vendors.

Is there any solution to get WQHD on other displays which support that resolution or we can say that this question is obsolete and that there is no solution for that problem? On developer.samsung page I saw some runtime options for modifying Dex app including to change resolution to WQHD.

I tested Dex Pad with original HDMI to HDMI cable on Note 8 and get qreyed out option for WQHD (on Sony 55XE8505 4K TV which have no support for MHL). In screen mirroring I get 4k 4096x2160 at 60hz.

Links:
https://youtu.be/umvnRlj9yN8

https://youtu.be/S63wn5nTa5E

mwittie said:
Could you let us know how you modified the ROM to enable higher Dex resolutions?

for mine, just tried with the Android Pie beta and can use Dex station mode very well on my Note8. U may wanna try Pie Beta as well

Sent from my SM-N950F using Tapatalk

server5 · Jan 17, 2019 at 4:06 AM

TrungHTC said:
for mine, just tried with the Android Pie beta and can use Dex station mode very well on my Note8. U may wanna try Pie Beta as well

Sent from my SM-N950F using Tapatalk

The question is NOT whether you can you DeX mode on pie but how to enable greater resolution WQHD and mods were made to get there.

TrungHTC · Jan 25, 2015 8 2 0

server5 said:
The question is NOT whether you can you DeX mode on pie but how to enable greater resolution WQHD and mods were made to get there.

Yes, u can choose higher solution from Beta rom settings (Dex mode settings) as i experienced from my device last night

Sent from my SM-N950F using Tapatalk

server5 · Jan 17, 2019 at 4:30 AM

TrungHTC said:
Yes, u can choose higher solution from Beta rom settings (Dex mode settings) as i experienced from my device last night

Sent from my SM-N950F using Tapatalk

Okay thanks. Screen grab?

TrungHTC · Jan 25, 2015 8 2 0

server5 said:
Okay thanks. Screen grab?

FYR....
https://drive.google.com/file/d/1gLTyRyzX61mxaJPTqm8xq5XrK4KeHqUA/view?usp=sharing

server5 · Jan 17, 2019 at 3:40 PM

TrungHTC said:
FYR....
https://drive.google.com/file/d/1gLTyRyzX61mxaJPTqm8xq5XrK4KeHqUA/view?usp=sharing

Thanks!! But at the max resolution how does the text look on the lapdock? Sadly, my eyes are not as good as they used to be....

Thanks again for posting! [emoji106]

aleks3008 · Dec 20, 2009 14 4 0

TrungHTC, can you post the screenshot with checked WQHD option, not FHD. The WQHD option on your screenshot is greyedout which mean that can't be enabled. This is my situation, and still no solution with official Note 8 firmware.

TranceChaos · Feb 28, 2019

I have an older Samsung 4k monitor, not the QLED one. Using International Exynos version of Note 8. I Just tried 3 different adapters.

AmazonBasics Type-C to HDMI adapter, it only goes upto 1080p, 2560x1440 is greyed out. I also get message that I should use genuine Samsung adapter or somethin.
LC-dolica USB C hub. Without power going to it, it does not work, not even a USB drive. But when I gave it power, it let me pick 2560x1440! I returned it though since I'm not too keen about having it plugged into the power.. plus the port wont fit in my Note 8 case.
Samsung Type-C to HDMI adapter. 2560x1440 option is greyed out again! However I dont see any "should use genuine Samsung adapter" message. But still.. no 2k option, I might as well just get the cheaper AmazonBasics adapter.

Edit*: I wonder if this cable will work? Samsung DeX Cable USB Type-C to HDMI. Anyone want to try it out?
If there's some file modification we can do on phone that lets us pick 2k option, I'm willing to root it too.

lbarouf · Apr 16, 2007 193 6 0

aleks3008 said:
Here I want to put some screenshots from two YouTube videos about Samsung Dex which shows unlocked (not greyed out) option for WQHD 2560x1440p resolution which gives desired resolution on monitor. Unfortunately, in both videos they using Samsung monitors. This arise question that WQHD resolution is option only for Samsung monitor. I dont know anibody that post screenshot with enabled WQHD resolution on monitors from other vendors.

Is there any solution to get WQHD on other displays which support that resolution or we can say that this question is obsolete and that there is no solution for that problem? On developer.samsung page I saw some runtime options for modifying Dex app including to change resolution to WQHD.

I tested Dex Pad with original HDMI to HDMI cable on Note 8 and get qreyed out option for WQHD (on Sony 55XE8505 4K TV which have no support for MHL). In screen mirroring I get 4k 4096x2160 at 60hz.

Links:
https://youtu.be/umvnRlj9yN8

https://youtu.be/S63wn5nTa5E

I read reports from others being able to use something else than a DeX pad. I was not able to get that resolution with other than the DeX pad. I'm using a viewsonic right now. I can use HDMI, Displayport and Mini display port to achieve the resolution with a macbook pro. I can use a USB-C to HDMI and a USB-C to DP/mini DP no problem. The same cables, on the Note 9 only get the FHD option. I know the cables and monitor are capable since they were in use seconds before, and that the Note 9 is also capable, since I am using it in WQHD right now. So the only explanation I can see, if Samsung test for someting when plugged in, and so far only the DeX pad met those requirements. I can't even change the charge on the DeX pad. I have a multi charger on my desk, I could use a thunderbolt 3 cable to power it. It supports QC 3.0, and 9v to 5v. But not Adaptive Fast Charge that uses the same voltage/amp. Weird.

Anyhow, it's the only config that worked for me. I would like to know if there's anything more portable that support higher resolution for when I travel. Otherwise, no big deal. I have been using the HP LapDock at FHD when I travel, and since the screen is only 11", FHD does not look bad.

My 2 cents.

mamatmooza90 · Mar 3, 2020 1 0 0

bump. the link given is gone

ant0nwax · Jan 28, 2008 92 9 0

Thanks guys
I am trying Note 8 (Pie of September) with Dell D6000 USB-C Dock
1) I confirm WQHD 1440p is greyd out for the External Monitor when i go to DEX Settings
2) I also confirm the D6000 Dock works with HP Laptop and same screen and cables at 1440p, so just not the right dock
3) I try now the same setup with the older DEX Station and will report later... I love that Ethernet on the DEX Station

DeX Pad working with WQHD 2560X1440p resolution - evidence & solutions

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