Can't use 1080p on full HD TV over Miracast

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  1. Posts : 4
    Win10-1607
       #1

    Can't use 1080p on full HD TV over Miracast


    Hi, I'm currently using my Notebook to connect to my LG webOS LH6000 TV and while the connection works, I can't seem to change the resolution.

    My notebook screen is 1366x768 natively. My TV is 1920x1080. The steps I take to connect are: Win+P, connect to a wireless display, choose my TV, connect.

    Then I went to right click, display settings and choose extend this displays. Since I know wouldn't be possible to mirror with 1080p. However, even after in extend mode, I can't change my TV resolution to 1080p, it is capped in the same resolution as the notebook. I also tried going to the Intel graphics setting, same thing.

    Here's my DxDiag: DxDiag - Pastebin.com
    Intel Report from Cpanel: Intel Report - Pastebin.com
    And here are two screenshots of configurations mentioned above.
    http://s10.postimg.org/r63gnu5tl/Capture.png
    http://s10.postimg.org/4io7hoq9l/Capture2.png

    Any ideas on how to run my TV on 1080p? I even tried to run it as "Second screen only", disabling my notebook screen and making the TV the main display, still only goes as far as 1366 x 768.

    Thanks
    Last edited by Nimb; 25 Sep 2016 at 22:19.
      My Computer


  2. Posts : 384
    Window 10
       #2

    Apparently your laptop display adapter (video card) does not support any resolution higher than 1366x768. It must at least support 1920x1080 to cast 1920x1080. It is as simple as that.
      My Computer


  3. Posts : 4
    Win10-1607
    Thread Starter
       #3

    PJLLB said:
    Apparently your laptop display adapter (video card) does not support any resolution higher than 1366x768. It must at least support 1920x1080 to cast 1920x1080. It is as simple as that.
    While I didn't think of that, apparently it supports:
    http://graphics-cards.specout.com/l/...-Graphics-4000
    GeForce GT 740M | Specifications | GeForce

    Intel support for HD 4000 also says regarding resolutions:
    In clone mode: 1920 x 1200 at 60 Hz.
    In extended desktop mode: One display at 2560 x 1600 at 60Hz and the remaining two displays at 1920 x 1200 at 60 Hz.
    If using a mobile processor, embedded Display Port (eDP) supports 1920 x 1200 at 60Hz, and two external displays using 2560 x 1600 at 60Hz.

    Any other ideas of what could be causing this?
      My Computer


  4. Posts : 41
    Windows
       #4

    Nimb said:
    While I didn't think of that, apparently it supports:
    http://graphics-cards.specout.com/l/...-Graphics-4000
    GeForce GT 740M | Specifications | GeForce

    Intel support for HD 4000 also says regarding resolutions:
    In clone mode: 1920 x 1200 at 60 Hz.
    In extended desktop mode: One display at 2560 x 1600 at 60Hz and the remaining two displays at 1920 x 1200 at 60 Hz.
    If using a mobile processor, embedded Display Port (eDP) supports 1920 x 1200 at 60Hz, and two external displays using 2560 x 1600 at 60Hz.

    Any other ideas of what could be causing this?
    I would say your computer and the fact that your TV is that size are all factors in your problem. Upgrading your computer or getting a new 1 might be a problem solver depending on what you do.
      My Computer


  5. Posts : 848
    Windows 10 LTSC
       #5

    1 .Go to NVIDIA control panel
    2. Click Display Resolution on Display on the left side of the window
    3. You will see a "Customize..." button, click it.
    4. Check "Enable resolutions not exposed by the display" if you see 1920x1080 in there then add it. If not, go to step 5.
    5. Click "Create Custom Resoluton..."
    6. Horizontal pixels must be set to 1920 and vertical lines to 1080. Refresh rate must be THE SAME on what your TV or monitor can support at maximum.
    7. Click on apply

    If this does not work then just change the value of the horizontal pixels and vertical lines to what can perfectly fit on the screen of your TV. The GeForce 740M will support 1080P resolution
      My Computer


  6. Posts : 4
    Win10-1607
    Thread Starter
       #6

    RoasterMen said:
    1 .Go to NVIDIA control panel
    2. Click Display Resolution on Display on the left side of the window
    3. You will see a "Customize..." button, click it.
    4. Check "Enable resolutions not exposed by the display" if you see 1920x1080 in there then add it. If not, go to step 5.
    5. Click "Create Custom Resoluton..."
    6. Horizontal pixels must be set to 1920 and vertical lines to 1080. Refresh rate must be THE SAME on what your TV or monitor can support at maximum.
    7. Click on apply

    If this does not work then just change the value of the horizontal pixels and vertical lines to what can perfectly fit on the screen of your TV. The GeForce 740M will support 1080P resolution
    Hmm. I have the stripped down NVIDIA control panel, I think it's not nvidia who's controlling my output settings, but rather, Intel. I don't know if there's a way to change this. But here's a screenshot of my ncp: http://s22.postimg.org/6k3qqv7fl/Capture.png

    So probably it's intel ****ing up somehow (Or not supporting 1920x1080) like it was mentioned above. The weird thing is, the support page for HD graphics 4000 says it *does* support that resolution. So I don't know what is going on. Strange thing is, Intel Cpanel report says it supports it! Intel Report - Pastebin.com
    Last edited by Nimb; 25 Sep 2016 at 22:20.
      My Computer


  7. Posts : 11,247
    Windows / Linux : Arch Linux
       #7

    Hi there

    If the actual hardware in your computer doesn't support more than the specified resolution - then you are STUCK with it.
    In general cheaper tablets etc will only support lower resolutions -- however most modern smartphones can cast at full 1080p so that might be a better option -- use mains power though or your battery will run out very quickly. Note also casting sometimes has nasty things like DRM crud so you might not always be able to cast.

    The hardware spec of your computer will specify the max output video resolution .

    Another issue often forgotten -- unless you use an HDMI connection to the TV you could be prevented from getting 1080p because of the TV hardware (for example if using SCART/AV/RGB/Component/VGA connections).

    Cheers
    jimbo
      My Computer


  8. Posts : 848
    Windows 10 LTSC
       #8

    Okay, I'm guessing the driver that you have for that GeForce 740M is the one that came from the laptop manufacturer? Because you shouldn't even be seeing that in a driver that directly came from NVIDIA.

    Have you tried switching to High Performance in the battery settings? Try and set it at that and check NVIDIA Control Panel's settings if anything adds up.
      My Computer


  9. Posts : 4
    Win10-1607
    Thread Starter
       #9

    jimbo45 said:
    Hi there

    If the actual hardware in your computer doesn't support more than the specified resolution - then you are STUCK with it.
    In general cheaper tablets etc will only support lower resolutions -- however most modern smartphones can cast at full 1080p so that might be a better option -- use mains power though or your battery will run out very quickly. Note also casting sometimes has nasty things like DRM crud so you might not always be able to cast.

    The hardware spec of your computer will specify the max output video resolution .

    Another issue often forgotten -- unless you use an HDMI connection to the TV you could be prevented from getting 1080p because of the TV hardware (for example if using SCART/AV/RGB/Component/VGA connections).

    Cheers
    jimbo
    Hi, Jimbo! I went ahead and got an HDMI cable to test it, works perfectly. The same Computer and TV can handle 1920x1080 over cabled HDMI. So I think the computer graphics/chipset can handle it just fine. Not sure why it won't work over Miracast, though.

    RoasterMen said:
    Okay, I'm guessing the driver that you have for that GeForce 740M is the one that came from the laptop manufacturer? Because you shouldn't even be seeing that in a driver that directly came from NVIDIA.

    Have you tried switching to High Performance in the battery settings? Try and set it at that and check NVIDIA Control Panel's settings if anything adds up.
    I actually have downloaded the driver directly from NVIDIA and performed a clean install, it's not the drivers that came from the manufacturer. Both Intel's driver and Nvidia's as updated and generic drivers (not from the manufacturer).

    Yep, the computer has always been on High Performance
      My Computer


  10. Posts : 41
    Windows
       #10

    Never mind what I had to say, then.
      My Computer


 

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