Alt-tab freezing needs to be fixed

For me the issue got resolved during one of the patches made to the live server around the same time that the last dev server was running. Since then I haven’t had the issue.

However weirdly enough during the launch of Aces of Thunder the issue was happening there until they released a patch soon after which also resolved that issue.

If you encounter the issue, could you please do the following:

  • Find the hung process in Task Manager
  • Choose Create memory dump file in the right-click menu
  • Find the generated .dmp file (it is usually in AppData\Local\Temp) and save it
  • Wait for the game to crash (it should after some time hanging) for the report to be generated.

I will write a bit later about how to send us this file.

This way, we can get more context about the state of the process and hopefully diagnose and fix this issue.

Thank you for your feedback!

From what I remember, it wasn’t possible to create a memory dump—at least not from the aces.exe file.

I think I have a memory dump, but from the WinDbg tool. However, these files are from the beginning of the year when I was creating the bug reports.

I will try checking your crash dump from the issue, and I am also going to look into why you can’t make a proper dump from aces.exe

Also, for sharing dumps:

For protection of your privacy (since you are sending contents of your memory), you should encrypt the file before sending.

How::

To get the PUBLIC_KEY, write to me in private messages on the forum and I’ll give it to you
DUMP_NAME is the name of the generated dump

After that, send the encrypted file however you like.

Also, to write the dump, you need to run the game from launcher, not from steam.

For that, go to the game location: steam > Library > War Thunder > Properties > Installed Files > Browse
And double click on launcher.exe , then run the game from the launcher

After that, you’ll be able to create a dump for aces.exe

Unfortunately, I couldn’t find any Dump files on my drive. There are only some Dump files attached to my old bug report: Community Bug Reporting System

It seems the issue no longer occurs on my end. While playing yesterday, I used ALT+TAB quite often, and the game didn’t freeze once.

As for the game’s memory dump, the generated DMP file is 0 bytes, so I likely faced the exact same problem when the game was freezing a few months ago. The only way to capture a dump was to launch WinDbg and debug the game until the freeze occurred.

I should also mention that I’m not using the Steam version, but the standalone launcher.

When the game froze, the screen remained completely frozen, but game audio (like tank or aircraft engines) was still playing. The mouse cursor wouldn’t move, and the game didn’t respond to keyboard input, including ALT+F4. The only way to close the frozen game was through Task Manager. After closing it this way, no crash or error window appeared.

Can you send me the latest .clog file from (war thunder installation folder)/.game_logs ? (Your last run needs to end in a freeze => crash)

Does anyone currently have this issue on windows (preferrably windows 11 with DX11)?

I do, though it has gotten noticeably better since a few updates ago.

Specs

OS: Windows 11
Graphics API: DX11
CPU: AMD Ryzen 5 3600X
RAM: 16GB DDR4
GPU: NVIDIA GeForce RTX 4060

Since the improvement, my game freezes every now and then when I alt-tab, more often when other programs are running—in-game situation is irrelevant (freezing happens just often in the hanger as in matches)—but has happened more than once when no other programs are running.

Most of the freezes can be immediately solved by changing to a different application and back. The game still functions during these freezes in the sense that it is just a visual freeze.

However, sometimes the game will freeze, whatever audio tracks was last playing will continue to loop regardless of whether I’m tabbed-out or not, and the game will hang like that for consistently over 20 seconds before becoming playable again, and can happen back-to-back. In these cases, the message “Video driver hung and was restarted. Texture quality was reduced”

Rarely it will be so bad that the opens an error box about a freeze being detected, and when I click “OK” it closes the game. No amount of waiting during one of these makes it unfreeze.

I hope at least some of this helps! :3

The condition that I am particularly interested in this case is the one where it hangs completely for a while before the message about the video driver.

Is it possible for you to:

  • Run the game from launcher (not steam), and repro the hang (open more apps, mashing win key after alt-tabbing in and out can also help cause the hang)
  • Once it freezes, make a full memory dump as described in my earlier post
  • Write to me in private messages here and I’ll give you a public key to encrypt and send the dump

This would be very helpful to us!

…I was unable to capture it.
I had multiple streams open, watching videos, in custom battles and switching windows multiple times per second, and it only appeared once, and I was too slow to capture it…

Since there is a developer here I must comment that something in the last major update fixed all my problems with a full AMD system. Driver freezes/timeouts disappeared completely and cockpit lights started working again (which went inop after the previous major). I never had this alt-tab problem but a host of others.

Got it, thank you for the effort! If you ever have a long freeze after alt-tab again and remember our conversation, try again! But no pressure)

I’ll try my best.
I did also want to say great job on whatever it is you fixed, because going from not being able to safely alt-tab at all, to it being nearly impossible to purposefully recreate the issue is amazing work!

Thank you for the kind words:) But ideally, we’d like to make it fully impossible for this to happen)

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Hello, I am still having this issue also, I’ve noticed it has become worse and worse the more I played. I deleted my cache file and it SEEMS to have slowed the rate at which I freeze. The freezes are as described, 15-20 seconds long and only occurs when I alt tab out of the game to something like youtube or discord. I will try to get a memory dump as you’ve asked for though i’m unsure how to do so. If you could let me know how it is done I can recreate it for you as it happens very often and seems to be getting worse.

Kind regards.

Hello! Sent you aggregated instrucitons in a private message

i’m litteraly having the same thing. Since i restarted playing the game after doing a pause of 1 week. Can u help me ?

Hi! Sent you info on how to help us fix the issue for you and for everybody in private messages)