Windows 10: DisplayPort monitor disconnects when waking

Discus and support DisplayPort monitor disconnects when waking in Windows 10 Graphic Cards to solve the problem; I recently upgraded to a new monitor (MSI Optix G271) and wanted to take advantage of the 144Hz refresh rate, which my old video card (Radeon HD5850)... Discussion in 'Windows 10 Graphic Cards' started by Mugen Power, May 4, 2021 at 6:12 PM.

  1. DisplayPort monitor disconnects when waking


    I recently upgraded to a new monitor (MSI Optix G271) and wanted to take advantage of the 144Hz refresh rate, which my old video card (Radeon HD5850) can only support via DisplayPort. Everything works great except for the fact that whenever the monitor goes to sleep after inactivity, upon waking the display, it will disconnect and reconnect (you even hear the corresponding Windows sounds) and all active windows get resized and moved around. This doesn't happen with HDMI and from Googling a bit for the past few days, it looks like a common DisplayPort and Windows issue. I'm curious to know if anyone else has encountered this and has found a solution that doesn't involve installing 3rd party software. I have the latest graphics card driver (15.20.xxx) and software (Catalyst Control Center 15.7.1) installed but couldn't find any settings to prevent this from happening. Unfortunately, the card is so old that there isn't a newer version available. Windows version: 20H2, 64-bit Graphics card: AMD Radeon HD5850 Monitor: MSI Optix G271 Any help would be appreciated!

    :)
     
    Mugen Power, May 4, 2021 at 6:12 PM
    #1

  2. DisplayPort second monitor disconnects when it sleeps

    Greg, please!

    As I stated, this is a DisplayPort disfunction. It is not a sleep issue. A DisplayPort disconnects when it sleeps. Windows thinks that the monitor is disconnected. When it wakes up, it thinks it is a new monitor. This is very well documented. I did not ask
    for any help on that. I have spent days working with support from the video card and the monitor companies.

    I ended up with a condescending 'Independent Advisor' with a God complex who insists on insulting me. I was very pleasant until you said 'Tony, I have no idea what you've tried if you don't tell me, so invested over
    an hour researching fixes that you now say you've tried.' Again, it had nothing to do with my request.

    I would suggest that you reread this conversation.

    You have called me uncooperative, cantankerous, and unfriendly. Because of this mistreatment I have reported you as abusive.
     
    TonyBeecher, May 4, 2021 at 6:22 PM
    #2
  3. DisplayPort monitor disconnects when waking

    I recently upgraded to a new monitor (MSI Optix G271) and wanted to take advantage of the 144Hz refresh rate, which my old video card (Radeon HD5850) can only support via DisplayPort. Everything works great except for the fact that whenever the monitor goes to sleep after inactivity, upon waking the display, it will disconnect and reconnect (you even hear the corresponding Windows sounds) and all active windows get resized and moved around.

    This doesn't happen with HDMI and from Googling a bit for the past few days, it looks like a common DisplayPort and Windows issue. I'm curious to know if anyone else has encountered this and has found a solution that doesn't involve installing 3rd party software.

    I have the latest graphics card driver (15.20.xxx) and software (Catalyst Control Center 15.7.1) installed but couldn't find any settings to prevent this from happening. Unfortunately, the card is so old that there isn't a newer version available.

    Windows version: 20H2, 64-bit
    Graphics card: AMD Radeon HD5850
    Monitor: MSI Optix G271

    Any help would be appreciated!
     
    Mugen Power, May 4, 2021 at 6:22 PM
    #3
  4. DisplayPort monitor disconnects when waking

    DisplayPort second monitor disconnects when it sleeps

    I have 2 monitors, an HDMI and a DisplayPort. It seems that, by design, the DisplayPort disconnects when it sleeps. This causes all of the open windows on that monitor move to the HDMI monitor (because the DP monitor no longer exists). The only solution
    is to not put the monitors to sleep.

    Is there any preferred setting for keeping a monitor on 24/7/365? Should I put up a black screen saver? If not what can I do to not burn out my monitors by having them on. I also don't want them bright all night long.

    2 new HP PCs

    2 Acer ET322QU monitors on each

    1 HDMI - 1 DisplayPort
     
    TonyBeecher, May 4, 2021 at 6:22 PM
    #4
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DisplayPort monitor disconnects when waking

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