Monitor doesn't wake up from sleep LS32A600NWUXXU

[Members_isCALPz]

Hi,

Any help appreciated. I have a new monitor LS32A600NWUXXU. Works beautifully except that if the monitor goes to sleep for longer than 5 minutes it doesn't appear to wake up again. Usually I must disconnect and reconnect the device power to get it working. 

Confusing particular  #1 - when my laptop re-awakens, it detects the monitor and is pushing an image to the screen. I can see my laptop wake up, and I can see my laptop notice the second screen and do the windows 'pop' thing that indicates it is entering a new screen configuration, but the monitor remains blank

Confusing particular #2 - when I disconnect and reconnect the device power, it doesn't always re-awaken. I cannot figure out why. It does not seem to be related to how long it has been asleep for beyond the initial minimum time for the problem to occur at all.

Confusing particular #3 - when this happens, I cannot get anything to show on the monitor - not the menu, nothing. 

Prior solution attempts: I have replaced the HDMI cable twice with brand new cables. I have tried a display port cable. I have tried multiple ways of disconnecting/reconnecting the power. I have tried a number of monitor menu settings. I have tried resetting the monitor from menu.

I can see a similar issue in a number of other posts, but they seem to talk about power/cable solutions that don't seem to apply to my case?

Any help greatly appreciated.

[L Gunter]

I just bought a monitor last month and I'm seeing this exact same set of symptoms. Did you ever find any resolution?

Model: S34C650UAN / LS34C650UANXGO

This seems like an issue with the monitor as it's really strange that Windows detects the monitor and will project an image to it as if it is awake. But all it does is flash the little stand-by led and no amount of button pushing on the monitor will wake it up, even the monitor menu doesn't display (super weird).

When I looked at the driver options, the version available on the website is one minor version OLDER/LOWER than what the monitor reports to be already installed from the factory. So I haven't yet tried to "upgrade" the firmware on the monitor to see if somehow the older version is more stable in this regard since I don't seem to be able to get the newer version available from the samsung software download center. 

[Human_Decoy]

Also having this issue with the LS34C650TAEXXY blinking blue light yet power to plugged in peripherals but will not wake and buttons not responsive 

[akashra]

I bought a Viewfinity S6 around Black Friday too, and am having this issue.  Like others are reporting, the connected computers see it as a connected display, both from the HDMI input and the USB-C input;  the mouse and keyboard, plugged in through it both interact with the upstream computer (but only the one the KVM is currently assigned to); Power delivery is working through it to my notebook that's using the USB-C input.  And the little blue LED at the bottom which is the only indicator LED the device has is also flashing.

But nothing makes the system respond.  Disabling the output from the connected PC(s) and re-activating that display does nothing.  Pressing any of the lower buttons, including to switch inputs, does nothing.  No on-screen displays present for any functions.

It also means that if I was using it as a KVM, I can't actually switch the inputs to the other connected device when this problem occurs - I'm trapped with my keyboard and mouse on the currently selected device, and can't use them to wake up the second one.

A fix is urgently needed for this - I can't keep having to physically disconnect the power cable just to get this screen working because I walked away from my desk for 30 minutes.  I'm considering returning this monitor and going back to an external KVM.