Linux + Vulkan: Game is freezing several seconds when launching dota, or navigating through menus, or starting/exiting a game, or leaving dota

[Mat9999]

Your system information

• System information from steam (Steam -> Help -> System Information) in a gist:
• https://gist.github.com/Mat9999/4c0d61e310e726cdbaafc6571aaee28a#file-system-information
• Have you checked for system updates?: [Yes]
• Are you using the latest stable video driver available for your system? [Yes]
• Have you verified the game files?: [Yes]

Please describe your issue in as much detail as possible:

the game is freezing several seconds (5 to 10 seconds) when entering a menu, or when starting or leaving a game. When a game is started, there is no freeze during the game.

Steps for reproducing this issue:

1. launch dota
2. navigate through different menu or start a game, or leave a game, or exit dota

[Mat9999]

There is no issue with OpenGL

[32bitcolor]

Confirmed issue on Arch, elementaryOS 6, Manjaro. Culprit appears to be the nvidia 495 driver, as rolling back to the 470 driver resolves the hanging. Here's my sysinfo gist

[Mat9999]

Nvidia driver version is 470.82.00 on my setup and it has the issue.

[kpatient]

Getting same or similar issues. Game stalls most of the time for minutes when exiting and joining or disconnecting from matches.

Running Vulkan on Manjaro with Intel Iris Plus GPU (no nvidia). When running -gl this issue isn't present.

[koreanfan]

I have vulkan memory leak, when dota eat all my ram, my pc crash, only hard reset.

[Mat9999]

The issue is still there. It is planned that openGL support will be removed as described in the November 15th, 2021 update: "Removed support for OpenGL on Windows. The optional DLC that previously contained the data required for OpenGL on Windows has been emptied and will be removed soon. Deprecation of OpenGL on macOS and Linux will be coming with a separate update. " When it will happens, it will be hard to use the game on Linux... I'm not sure if developpers are reading issues there, it makes a long time since this bug is here.

[user827]

Copying my experiences from the duplicate issue:

The game has terrible loading times while using pre-compiled shaders: Clicking any menu item may hang the game for more than 10 seconds while it appears that the game is loading a 3d model which appears late. Character animation in the menu freezes multiple times. Starting a game takes much longer than it would if the shader pre-caching was disabled. Starting a new match takes about 5 seconds to load after clicking skip ahead without pre-cached shaders but it takes about minute if pre-caching is enabled. After a match has loaded, it plays fine though until returning to menu.

Disabling shader pre-caching from steam settings appears to fix the issue. It didn't seem like the hangs were about the game doing shader pre-compiling while the game was on because it never goes away and the cpu usage is not high.

[Mat9999]

I have disabled shader pre-caching from steam settings, and have tested dota menus during 5 minutes, it seems this workaround is working. I will do more test when i will have more time.

[Mat9999]

I confirm this workaround is working.

[DashieTM]

This is still an issue. You can "fix" it by using the -vulkan_disable_steam_shader_cache. But that had the consequence for me that I had to completely reinstall steam as I had completely broken shaders after a while. No matter what I did, it just didn't recompile them. Broken as in drops from 200fps down to 5.

[ghost]

Freezes still occur. -vulkan_disable_steam_shader_cache does not fix the issue, it just delays the freeze.

[Mat9999]

I'm closing this issue, its an old one, and disabling shader pre-caching from steam settings did solve it.