Vulkan disabled in chromium: Couldn't open libvulkan.so.1

[robert-elles]

Describe the bug

Even when vulkan is installed and working, opening chromium and going to chrome://gpu shows vulkan is disabled. Also chromium logs the following warning:
Warning: Couldn't open libvulkan.so.1 Info: Couldn't load Vulkan at LoadVulkan (../../third_party/dawn/src/dawn_native/vulkan/BackendVk.cpp:135) at Initialize (../../third_party/dawn/src/dawn_native/vulkan/BackendVk.cpp:139)
Running vulkaninfo confirms that vulkan is installed properly and working.

Steps To Reproduce

1. confirm vulkan is installed and working with running vulkaninfo
2. open chromium and go to chrome://gpu check if vulkan is enabled or disabled.

Expected behavior

vulakn is enabled in chrome://gpu

Notify maintainers

@ncfavier
@tnias
@davidak

Metadata

Please run nix-shell -p nix-info --run "nix-info -m" and paste the result.

• system: "x86_64-linux"
• host os: Linux 5.10.81, NixOS, 21.11 (Porcupine)
• multi-user?: yes
• sandbox: yes
• version: nix-env (Nix) 2.3.16
• channels(robert): ""
• channels(root): "nixos-21.11.334139.1bd4bbd49be"
• nixpkgs: /nix/var/nix/profiles/per-user/root/channels/nixos

Maintainer information:

# a list of nixpkgs attributes affected by the problem
attribute: chromium
# a list of nixos modules affected by the problem
module:

[tnias]

Hey @robert-elles,

I think you meant to ping the chromium maintainers: @primeos @thefloweringash @squalus.

[robert-elles]

@tnias yes thank you!

[primeos]

Not sure if this is actionable, AFAIK Chromium's Vulkan support is still pretty experimental (depending on the platform). Did it even ever work before? Also: X11 or Wayland, which flags are you using for Chromium, and could you provide the full output?

Couldn't open libvulkan.so.1 might be actionable but apparently it's only a warning so idk... You could use strace to figure out the complete path where Chromium expects libvulkan.so.1. Relevant parts from the source code:

• https://source.chromium.org/chromium/chromium/src/+/main:third_party/dawn/src/dawn_native/vulkan/BackendVk.cpp;l=43;drc=15fec68a4f73051c8e25da68dc3c8eefeec72941
• https://source.chromium.org/chromium/chromium/src/+/main:third_party/dawn/src/dawn_native/vulkan/BackendVk.cpp;l=173;drc=15fec68a4f73051c8e25da68dc3c8eefeec72941;bpv=0;bpt=1

But since Dawn (https://dawn.googlesource.com/dawn) is Google's WebGPU implementation this shouldn't even be relevant (yet).

Anyway, I'm afraid you're on your own here as I don't have enough time to give it a proper look.

(Potentially) also interesting/relevant:

• https://bugs.chromium.org/p/chromium/issues/detail?id=898268
• https://bugs.archlinux.org/task/71888
• https://bugs.chromium.org/p/chromium/issues/detail?id=848385
• https://linuxreviews.org/The_State_Of_Vulkan_Rendering_In_Chromium_84:_Say_Goodbye_To_All_VRAM,_RAM_and_Swap,_Chromium_Will_Eat_It_All

PS: I also finally submitted #150417 but that should only be relevant when using SwiftShader.

[davidak]

This issue affects also google-chrome.

[primeos]

libvulkan.so.1 seems to be relevant as it's ANGLE's Vulkan wrapper rather than the real libvulkan from the system. I only had a quick look through the source-code but it seems like we should definitely install it (but other Linux distributions don't seem to do it yet). Anyway, @robert-elles could you re-test this once #151023 is built by Hydra (maybe I can also give it a go during the weekend)?

@davidak we already install libvulkan.so.1 for Google Chrome so it seems like there are some other issues as well. If you have time to debug/investigate that would be great (my older test system for Google Chrome lacks Vulkan support :o).

[robert-elles]

@primeos great thanks for looking into it! will definitely try to test it over the weekend

[robert-elles]

@primeos unfortunately it does not seem to fix the problem. I still get the same warning that libvulkan.so.1 could not be load

[shazow]

Confirming this is also an issue on google-chrome-beta: (Excuse the unrelated dbus things)

$ google-chrome-beta
[342375:342463:1228/130139.925935:ERROR:object_proxy.cc(642)] Failed to call method: org.freedesktop.DBus.Properties.Get: object_path= /org/freedesktop/UPower: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.UPower was not provided by any .service files
[342375:342463:1228/130139.926512:ERROR:object_proxy.cc(642)] Failed to call method: org.freedesktop.UPower.GetDisplayDevice: object_path= /org/freedesktop/UPower: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.UPower was not provided by any .service files
[342375:342463:1228/130139.927088:ERROR:object_proxy.cc(642)] Failed to call method: org.freedesktop.UPower.EnumerateDevices: object_path= /org/freedesktop/UPower: org.freedesktop.DBus.Error.ServiceUnknown: The name org.freedesktop.UPower was not provided by any .service files
Warning: Couldn't open libvulkan.so.1
Info: Couldn't load Vulkan
    at LoadVulkan (../../third_party/dawn/src/dawn_native/vulkan/BackendVk.cpp:135)
    at Initialize (../../third_party/dawn/src/dawn_native/vulkan/BackendVk.cpp:139)

[342375:342399:1228/130149.208808:ERROR:chrome_browser_main_extra_parts_metrics.cc(227)] START: ReportBluetoothAvailability(). If you don't see the END: message, this is crbug.com/1216328.
[342375:342399:1228/130149.208826:ERROR:chrome_browser_main_extra_parts_metrics.cc(230)] END: ReportBluetoothAvailability()
Fontconfig error: Cannot load default config file: No such file: (null)

I'm not experienced at debugging this kind of thing but happy to give it a shot if there are any hints for where to get started. :)

Edit: I did confirm that /nix/store/z4pvkf0jaz9hmi995dsiak0ayk8qw9n2-google-chrome-beta-97.0.4692.56/share/google/chrome-beta/libvulkan.so.1 exists and ldd paths seem valid.

[primeos]

I'm not experienced at debugging this kind of thing but happy to give it a shot if there are any hints for where to get started. :)

If you have time it would be nice if you or someone else could use strace (or similar tools) to figure out where Chrome/Chromium is looking for libvulkan.so.1. Something like strace -fe file google-chrome-beta ... (see man strace - e.g. -o filename can be useful as well). It's a bit advanced though. I'm hoping that I can also give it a go soon (currently working on a few other Chromium TODOs).