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Broken PC screen: How to share screen in safe mode?

LeWarrenDji -  
brucine Posted messages 24840 Registration date   Status Member Last intervention   -

Hello, I have an HP Pavilion 360 but the screen is broken. Since then, I have been using it on my TV via HDMI. Yesterday, I installed a software and the computer restarted, and now it doesn't turn back on the TV screen. I have the impression that it is in safe mode or BIOS, but I can't see anything on my TV screen because it no longer connects. Is there a way to connect my broken PC to another computer? Or, is there a shortcut to operate the computer despite the black screen to restart it?

Thank you in advance for your help.

7 answers

  1.
    georges97 Posted messages 14578 Registration date   Status Contributor Last intervention   2 924
     

    Hello,

    While waiting for a response from one of the "hardware" specialists at CCM. What you call screen sharing is actually display extending, which works either through a menu (invisible in its current state) or by toggling the appropriate function key.

    However, a PC does not enter safe mode (repair mode) unless it's activated by pressing a function key during startup (to my knowledge).

    On my Asus, it’s the F8 key, in any case the key that has a double screen icon. By pressing it several times, if the graphics card is functioning properly (especially if the driver has not been disabled by an update), you should be able to toggle through one of the positions (internal screen only, external screen only, external + internal screen) and restore the display.


    I believe that in the drivers of certain graphics cards, there is a television option, but it should only concern the resolution settings.

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  2. macbernic Posted messages 2231 Registration date   Status Member Last intervention   545
     

    Hello,

    In the function keys, there is one that should correspond (I believe it's F4, there's a drawing screen) that allows you to switch from the laptop screen to the external screen.

    What software have you installed?

    @+

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    1. LeWarrenDji Posted messages 3 Status Member
       

      AMD Software

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  3. MFC17250 Posted messages 848 Registration date   Status Member Last intervention   13
     

    Hello, the best thing is to change the screen for about a hundred euros.

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  4. LeWarrenDji Posted messages 3 Status Member
     

    Thank you for your response, but as I mentioned, I haven't activated safe mode or BIOS. I wanted to install AMD Software and the software asked me to restart the PC. When I clicked okay, the computer restarted but it no longer displayed on my TV. So, I'm looking for a way to get a visual back so that my PC displays again on my TV.

    Thank you.

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    1. macbernic Posted messages 2231 Registration date   Status Member Last intervention   545
       

      Did you find the key to switch to the external screen like we're trying to explain to you??

      @+

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  6. LeWarrenDji Posted messages 3 Status Member
     

    Yes yes, but still nothing. Is it possible to duplicate the screen from another PC and set my PC as the main screen so that it displays on the second one?

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    1. macbernic Posted messages 2231 Registration date   Status Member Last intervention   545
       

      No, I don't think so.

      How do you proceed?

      1- Unplug your phone from your TV

      2- Turn off your phone by pressing and holding the power button

      3- Turn your phone back on without connecting it to the TV

      4- Connect your HDMI cable to the TV and the phone

      5- Press the button to switch to the external screen.

      What happens? Does the TV recognize a connection?

      @+

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    2. georges97 Posted messages 14578 Registration date   Status Contributor Last intervention   2 924
       

      There is no video input on current laptops (there used to be in YUV). It is possible to take remote control (TeamViewer, AnyDesk) but it's better if both PCs are functioning to consider this.

      I think it's best to avoid going in all directions. You probably had an imperative reason to test this AMD driver, but if it doesn't work for your version of Windows or on your graphics chipset, it should have been tested on a fully functioning machine.

      In my opinion, but this is just an opinion, a restoration to a previous state should be done, or even a factory reset (for the latter, after extracting the hard drive to back up data and at the cost of reinstalling all software and game profiles except for saves on publishers' websites).

      Last point, it is universally recommended not to change drivers when everything is working, even if we expect a hypothetical improvement in performance.

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  7. LeWarrenDji
     

    Thank you all, I think I just discovered something. For your information, my problem is solved.

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  8. LeWarrenDji
     

    If I stick to the comments I've read regarding my problem, it seems impossible to project your PC screen in safe mode. Or at least, the help you provided didn’t help me much.

    I tried something: Noticing that safe mode only displays with the previous screen, and that if your screen is broken, you won’t be able to see anything, I took apart my PC. I disconnected all the cables connecting the screen to the keyboard and restarted the PC. To my surprise, it automatically connected to the TV. From there, I was able to exit safe mode.

    PS: Among these cables, there are two that are used for the Wi-Fi connection, so you’ll need to reconnect those later. Just disconnect the cable that brings light to the screen.

    Thanks again and I hope to help others who might have the same issue as me.

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    1. brucine Posted messages 24840 Registration date   Status Member Last intervention   4 169
       

      Hello,

      For the record (assuming of course that the appropriate screen settings are made in Windows), safe mode does not load drivers by definition, and does so only successively, so it will only load the one necessary for multi-display when it reads it.

      This driver is not loaded until the Windows interface is launched, which is of course the case if there is a crash, but also for example during the restart of a Windows update: during the installation, there is only display on the default screen.

      What you did, which essentially makes the external device considered as the default one, "resolves" the question, but does not change anything about the impossibility I just mentioned.

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