mangohud parameter not working

[luisalvarado]

Ensure there isn't an existing issue for this and check the wiki

• This issue is not a duplicate and I have checked the wiki.

Current Behavior

I read the mangohud documentation at https://github.com/canonical/steam-snap/wiki/FAQ and I am using the Beta and Edge versions. I tested several games from Hogwarts Legacy, to Cyberpunk with the popular:

mangohud %command%

Line but it never showed the mangohud. I also did MANGOHUD=1, mangohud=1, pineapple=1 and other fruits. No luck

Expected Behavior

Was expecting that if I do this for a game

mangohud %command%

It would show the mangohud.

Steps To Reproduce

No response

Environment

os_release:
    name:               "Ubuntu"
    version:            "24.04.1 LTS (Noble Numbat)"
snap_info:
    steam_revision:     206
    snapd_revision:     23078
lspci:
    0000:01:00.0:       NVIDIA Corporation Device 2684 (rev a1)
glxinfo:
    gpu:                NVIDIA GeForce RTX 4090/PCIe/SSE2
    gpu_version:        4.6.0 NVIDIA 555.58.02
lscpu:
    model_name:         13th Gen Intel(R) Core(TM) i9-13900K
xdg_current_desktop:    ubuntu:GNOME
desktop_session:        ubuntu

gaming-graphics-core22 version

No response

Anything else?

No response

[ashuntu]

MangoHUD support is still experimental, so it will likely not work with some games. We're aware of this and are looking to improve it in the future.

From the Wiki:

MangoHUD support is still spotty, and works best with native OpenGL games; please do not open issues relating solely to MangoHUD compatibility.

[luisalvarado]

Shouldn't the documentation update the mangohud section to say opengl only to no confuse anyone. I just tested 45 games right now. None worked. Which game is supposed to work with mangohud if all of them are failing to work?

[ashuntu]

As an example, I'm able to get it working with Valheim running with OpenGL, but not the default Valheim graphics lib. We are doing a fair amount of reworking of Steam's permissions on the snapd side, so improvements to things like MangoHUD will likely wait until that is complete.

[luisalvarado]

@ashuntu Oh I KNOW about the reworking and you guys ROCK. What I meant was, in the documentation it implies that Vulkan works, when it does not for the bunch of games I tested. It does work on OpenGL, but not Vulkan, so a documentation update could help for now to avoid dummies like me posting. But I have seen the crazy improvements.

[ashuntu]

I modified the first line of the MangoHUD section of the wiki to hopefully be more specific.

[luisalvarado]

@ashuntu you da man!