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Daniel_Hong
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Dell G5 5587 4K Output

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Hi,

I am trying to get 4K Resolution Output to my TV via receiver. When I go to Display setting and Multiple Displays set as Duplicates, I am able to set Resolution as 3840 x 2160. But when I set Show Screen only, my Resolution is locked at 1080P.

 

I want to turn my laptop monitor off while I play games on my TV and be able to get 4K resolution on my TV. How do I resolve this issue?

 

Thanks,

 

Daniel

 

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6 Replies
jphughan
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Re: Dell G5 5587 4K Output

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Is the refresh rate possibly changing to a higher value when you chose to display only on the TV?  A higher refresh rate might be limiting your resolution options due to bandwidth constraints.  Does your receiver support 4K specifically at 60 Hz?  That requires it to have HDMI 2.0 inputs, and typically that's only found on receivers that also support 4K HDR.  Otherwise, if your receiver only claims support for "regular" 4K and only has HDMI 1.4 inputs, it would only support up to 4K 30 Hz (or maybe 24 Hz, I can't remember).  In that case, you might have to manually choose the lower refresh rate in order to allow selecting 4K, but that would not be ideal for gaming at all.

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Daniel_Hong
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Re: Dell G5 5587 4K Output

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Thank you for your reply.

I am not sure about the refresh rate changing when I change output to 4K only. The Resolution selection is grayed out when I chose second screen only.

My receiver supports HDMI 2.0 inputs and pass through HDR and Dolby Vision without problem from my 4K player or PS4 Pro.

 

 

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jphughan
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Re: Dell G5 5587 4K Output

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Hmm, I can't reproduce this issue on my system using a receiver that has the same capabilities.  I've never even heard of resolution options becoming MORE restricted when switching from mirrored to extended or single-display.  Usually if there are restrictions at all, they occur when mirror mode is enabled because the system requires you to select only from among the resolutions supposed by all active displays.  Do you see anything different if you try to manage the resolution options from Intel HD Graphics Control Panel instead of Windows Display Settings?  Right-click your desktop background > Graphics Properties > Display.

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Daniel_Hong
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Re: Dell G5 5587 4K Output

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I am not with this laptop right now. But I remember I tried the Intel HD Graphic Panel and it showed no second screen detects or something. 

I will take the screenshot and share when I get home.

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Daniel_Hong
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Re: Dell G5 5587 4K Output

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Thank you again for taking the time to help me. I update Nvidia Drivers and had NVidia Control Panel showed up.

Through there, I can set 4K Resolution at 60 Hz. Everything is good now. 

 

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jphughan
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Re: Dell G5 5587 4K Output

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Ah ok, so apparently the display output you're using is wired directly to the NVIDIA GPU.  In dual GPU systems, all outputs are wired to the Intel GPU and the NVIDIA GPU acts as a render-only device that when active passes completed video frames to the Intel GPU for output.  The advantage of that design is primarily battery life, since having outputs wired directly to the NVIDIA GPU means that the NVIDIA GPU has to be active whenever a display is attached to it, even if it's not showing anything particularly graphics-intensive.  However, the advantage of your design (and probably the reason Dell employed this strategy on the G Series laptops) is that it allows you to take advantage of certain features that NVIDIA GPUs support but Intel GPUs don't support passing through, such as VR, G-Sync, stereoscopic 3D, 5K, and HDR -- although some of those may not work on specific systems for other reasons.

Anyhow, glad you got it working!

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