Toggling the menu with vulkan wen run from a tty takes several seconds.

[orbea]

Description

When using vulkan with a kms context and then toggling the menu while running any content will result in a several second pause before the menu or content renders again.

When using vulkan with a X11 context or opengl with a kms context toggling the menu is instant.

Expected behavior

Toggling the menu should be near instant and should not take several seconds when using vulkan with kms.

Actual behavior

Toggling the menu takes several seconds when using vulkan with kms.

Steps to reproduce the bug

1. Start RetroArch with a kms context and vulkan.
2. Start any core + content (i.e. snes9x-libretro).
3. Toggle the menu.

Bisect Results

N/A

Older RetroArch commits have other issues with kms and vulkan making a bisect not possible.

Version/Commit

You can find this information under Information/System Information

• RetroArch: https://github.com/libretro/RetroArch/commit/b40aa13418facd23f7696b5d92c1b473534d884b

Environment information

• OS: Slackware64-current
• Compiler: gcc-8.3.0
• GPU: Radeon RX Vega 56
• mesa: https://github.com/mesa3d/mesa/commit/0aa5a97b03159f59513bd96dbf7c25c2d22e3c1c
• vulkan-sdk: 1.1.92.1
• linux: 4.20.12

[orbea]

I was mistaken about vulkan using a kms context, this issue occurs when running RetroArch with vulkan from an unused tty.