Telegram showing notifications and opens media on wrong monitor after display turned on

[mtsbh]

Steps to reproduce

1. Having a multiple monitor setup
2. PC is set not to sleep, but turn the displays off after 1 hour of idle time
3. Wake up monitors and the issue is there

Expected behaviour

I'm having 3 monitor setup on W11 and my Telegram is running only on my main middle monitor and thats where I expect the notifications and the media viewer to open. Its so annoying to look on the bottom right corner on my right monitor to see the notification pop-up

Actual behaviour

Every time after monitors wake up the notification pop-ups and media viewers are opened on the most right of my monitors, which I barely use and the Telegram app is never moved or opened there.

Operating system

Win11

Version of Telegram Desktop

v5.10.1

Installation source

Static binary from official website

Crash ID

No response

Logs

No response

[ilya-fedin]

What's the first version it started to happen with?

[mtsbh]

Idk. Since my Win11 install maybe one year ago. I can't remember if I had those problems in Linux or even before with Win10

[ilya-fedin]

does the problem stop happening if you move the window a little bit?

[mtsbh]

Nope, the problem still persists. It stop only if I restart the Telegram app or the PC.

[ilya-fedin]

Does moving the window to other monitor and back help?

[mtsbh]

You mean when the monitor is wake up not to restart Telegram but move it to the right monitor and then the middle again and see if the notification pop up if fixed to the main monitor again? I will try that now.

[ilya-fedin]

You mean when the monitor is wake up not to restart Telegram but move it to the right monitor and then the middle again and see if the notification pop up if fixed to the main monitor again?

Yeah

[mtsbh]

It seems that this method fix it. Couple of times moving Telegram back and forth between monitors make the notification back where it belongs. Strange turnaround but works!

[ilya-fedin]

Strange turnaround but works!

Nothing strange, if notifications and media appear on wrong monitor, it means Qt thinks the main window on that monitor. Moving between screens forces Qt to update the state. Why it thinks so and what to do with it is a good question though... I don't see a way to fix it from tdesktop code, at least.

Are your monitors having different scaling? If you set the same scaling, does issue go away?

[mtsbh]

They use the same scaling (100%) but they have different resolutions also the left one is vertically placed. I don't know if that could be a problem.

[ilya-fedin]

I see that Qt stops screen change checks on window move when there's a DPI change until there's actual DPI change event from the system. I thought maybe DPI change is what happens for you but the system doesn't behave like Qt thinks (doesn't send the event it expects) and screen updates stuck. But if you say all your screens have the same scaling, this couldn't be it.

[mtsbh]

Sometimes the OS thinks that the right monitor is my main. Idk why. Also, for example, when installing windows, the installation starts from my main monitor but after couple of steps ahead it changes to the right one (where I see the pop ups) and I complete the installation on the right monitor. After the installation is done the monitors are arranged as if the right one is my middle one and every time after windows installation I need to rearrange them from Display settings so that the right goes to the right side really. And still windows thinks that the one from the right is my N:1 monitor.

[ilya-fedin]

Well, Qt gets screen from the global coordinates. And it should actualize the info on window move events, but for some reason it doesn't work in your case unless you move the window to other screen and back.