MSI GT73 projecting screen all by itself ONLY when TV is off! Help!

So I'm confused as hell as to why this is happening.

I just bought a new sony 55x900e TV. My MSI GT73 1070GTX windows 10 is connected to my TV via HDMI 99.9% of the time. The first day I had no problems, the second day I woke to find my screen projected to second screen (TV) when I didn't tell it to do that. Since then (a week ago) when the TV is off the laptop will automatically project itself to the TV. Sometimes It takes less that 1 minute when the TV is shut off, sometimes 10 minutes. I thought it randomly choose projection types (duplicate/second screen only/extend) but it seems like whichever projection you manually used last is the one it will switch to by itself when TV is off. It will not switch by itself if the tv is on, even sitting idle on hmdi 1 with no input or when playing netflix...etc. If the TV is on it won't project unless I make it but as soon as that TV is turned off its on the clock, it will even switch when I'm using the laptop and typing/browsing/listening to music or watching a video.

I have rebooted both TV and laptop, reinstalled the nvidia drivers from MSI using DDU and safe mode, the tv is up to date, windows has done no driver updates, I have tried 2 different hdmi cables, I have tried plugging in to hdmi 2/3/4. I called sony, they said the TV has no control over the source. I have uninstalled and disabled PnP monitors that pop up in device manager when I hook it up to the TV. Laptop confirmed as #1 screen and audio is defaulted to laptop. It is driving me insane.

I know I can simply leave it unplugged but I shouldn't have to. WTF is making it do this? The new TV replaced a 2015 kdl55w800c Sony tv that didn't ever do this. I can't even find a process to disable that stops the switching.

 

It's probably not the drivers. Have you tried updating your Windows to like the latest build? What about BIOS & EC?

 

Yep, build 1803 happened last night and it did not stop it from auto switching when the TV is off. BIOS&EC are up to date too unfortunately.

 

You didn't have this issue with previous TV though, right?

 

Nope. It was a sony kdl55w800c. I think it was a 2015 model and this one is a 2017 model. Same OS interface too just the new screen has HDR/4k and some other extras. The laptop didn't do this the first day I hooked it up to the new TV, it started the day after.

 

Have you tried a different HDMI cable? What about power options? Standby options?

 

Tried 2 different cables and tried plugging it into hdmi 2/3/4 also. Power options it never goes to sleep, I tried changing screen turn off time but it also did not work.

 

What was the changes in between before & after?

 

Nothing. Those changes had no impact

 

One thing we don't have to assume, is that it is the laptop itself as the issue. You mentioned the previous TV did not do this. Why is suddenly the machine the issue? You actually performed a lot of good troubleshooting and updates for drivers, bios etc.

The only other thing to try is not using HDMI directly, but the DP port with an HDMI converter to see if it has the same behaviour. The issue sounds like very annoying.

It could also be somewhat related to windows itself, but what strikes me the most as odd is that you didn't have these issues with a previous TV. Do you, by any chance, have any other display you can test to see how it behaves? We need to rule out which one is/isn't causing the issue. It may be a combination. You can also try looking for a firmware update for your TV.

 

The previous TV did not do this, correct. It was fine the first day though. My TV is up to date, no more updates for it. I also called sony after several days of this and they assured me the TV has no control over the source.

I tried a computer monitor with hdmi support and it was fine; No auto switching but I also didn't leave it over night, just 30min.

I'll be out town for a few weeks and my wife is going to leave her Acer hooked up like mine always is and see if it happens. She also has windows 10.

I've seen stuff mentioned about HDMI CEC or something to do with new TVs and hdmi cables/control. My old 2015 TV was one of the last 1080p non 4K TVs from sony from what I understood. Maybe it didn't get the new tech?

I also posted this on the microsoft support forums and the one person trying to help is also having trouble trying to diagnose this.

As I sit here my screen has blipped (the refresh thing) 2 times. It is in extended with the tv OFF because I don't bother putting it to "PC screen only" anymore. The blip looks like it refreshes the desktop and then my colour profile gets applied again and taskbar disappears and then comes back (maybe not exactly in that order but all that happens). So far I've only noticed this in extend screens. Never on second screen only or unplugged with pc screen only. I don't use duplicate so I can't confirm for it. My laptop also goes through very noticeable lag spikes too now, only in extend screen hooked up to the tv. This hardware should be able to handle extended screens so I'm assuming whatever is causing the auto switch when the TV is off is having issues or something in extend screens.

 

Is this a smart tv or "smart" connect tv? For example with other devices, game console cable box ect, can it control those devices?

 

Try another PC if you have spare to verify. If the issue only shows up with one device then perhaps it's the particular PC itself.

 

So far I think it is something with the TV. Saying it does not control the source means nothing by itself. HDMI can "control" HDMI devices but this is probably what they mean that it is disabled.

Something about how the TV handles the PC input... are you displaying in RGB or ycbcr? Maybe there is some incompatibility issue happening with the desired resolution/settings. What does your TV say about PC compatibility? Any limitations for refreshrate or something?

 

Yes, if you are pushing a resolution/refresh rate that the TV does not support that could be an issue.

 

I've been away for a few days. I won't be back home for a few weeks. As soon as I'm back I will check this but nothing was changed display wise between the old tv and new tv

 

For the record though my girlfriend has left her acer spin 5 laptop running windows 10 connected to the new tv since I have been away and no automatic screen projecting of any kind with the tv on or off.

 

This problem is not fixed but I found a work around. But an hdmi switcher and now I don't have to unplug anything. As soon as I switch it to the tv the laptop screen projects automatically to the last projecting setting used (which would be second screen only).

Maybe windows 10/nvidia will eventually correct this problem.

 

So is the HDMI switcher powered on constantly? Perhaps this is the cause?

 

No I bought the HDMI switcher because I didn't want to unplug/plug the hdmi cable multiple times every day and I was tired of fighting with it. So now I just leave on #2 which is empty on the switcher and when I want to project I switch the switcher to #1 which is the laptop. When switching it to #1 it's treats it as plugging the hdmi cable to the TV so it auto projects (which is fine as it has always done that with the old and tv and now this one).

So not a fix but a work around. I'm downloading and installing the latest nvidia drivers approved by MSI. I doubt it will fix the problem but we will see, I feel like it is a windows 10 problem though.

 

Let us know if that helps. I am very curious to see a resolution here.

If you could inform of a the full layout of the configuration you have it could assist.

 

So I don't know if it is th new nvidia driver or maybe windows did some other small updates to 1803 but it seems to be fine now. It is still hooked up to the switcher but I haven't had to disconnect the laptop from tv via the switcher because it has STOPPED projecting by itself when the tv is off.

My setup is basically my laptop (GT73 1070 win10) sits beside my tv 99.9% of the time and is plugged into the TV via HDMI cable 99.9% of the time. It started doing this the day after I got my Sony bravia 55" X900e. I thought it was the TV at first but through trial and error and testing other laptops it was not the TV, just my laptop.

So far so good, I will obviously keep watching it like a hawk but I doubt it will have the problem it had. The only thing left to try is leaving the tv hooked directly to the laptop instead of through the hdmi switcher but because it's working I'm afraid to try it haha

 

Looks like a driver issue which had been resolved by Nvidia.

 

Glad to hear the issue has been resolved!