[BUG] Failed to find Intel GPU engines. Intel Arc A310. Linux x86_64 6.6.65

[englut]

I'm trying to get my GPU to show up in btop. I know the latest version has intel_gpu_top support! 🙏

However, I am seeing an error in my btop when I run in debug mode.

2024/09/28 (00:06:32) | ===> btop++ v.1.4.0
2024/09/28 (00:06:32) | DEBUG: Running in DEBUG mode!
2024/09/28 (00:06:32) | INFO: Logger set to DEBUG
2024/09/28 (00:06:32) | DEBUG: Using locale en_CA.UTF-8
2024/09/28 (00:06:32) | INFO: Running on /dev/pts/2
2024/09/28 (00:06:32) | INFO: Failed to load libnvidia-ml.so, NVIDIA GPUs will not be detected: libnvidia-ml.so.1: cannot open shared object file: No such file or directory
2024/09/28 (00:06:32) | INFO: Failed to load librocm_smi64.so, AMD GPUs will not be detected: librocm_smi64.so.6: cannot open shared object file: No such file or directory
2024/09/28 (00:06:32) | DEBUG: Failed to find Intel GPU engines, Intel GPUs will not be detected
2024/09/28 (00:06:32) | DEBUG: Shared::init() : Initialized.

I have an Intel Arc A310. I can run sudo intel_gpu_top (intel-gpu-tools-1.27-2):

I'm running Arch Linux (arch: x86_64, kernel: 6.6.65-1-lts). With the btop package installed via AUR.

I also tested building from source, here are the steps I ran:

$ git clone [email protected]:aristocratos/btop.git
$ cd btop
$ sudo make install
$ sudo make setcap
$ btop

I also tried sudo make setuid. Same issue.

Is there something I'm missing?

[hsghost]

Don't know if it's relevant, but on my Arch with AUR installation I had to run btop with sudo to make the GPU part showing. So I just did

sudo setcap cap_perfmon=+ep $(where btop)

and now it's showing without sudo.

[englut]

@hsghost just tried that out! Didn't work. Even running with sudo btop doesn't work.

[Jack-Sandberg]

I had the same error message using an A310.

DEBUG: Failed to find Intel GPU engines, Intel GPUs will not be detected

The error message stems from this line

engines = discover_engines(device);
if (!engines) {
  Logger::debug("Failed to find Intel GPU engines, Intel GPUs will not be detected");
  return false;
}

where device is defined as const char* device = "i915";.

Looking into discover_engines, it seems that device is used to define the directory to look for the GPU engine:

snprintf(sysfs_root, sizeof(sysfs_root), "/sys/devices/%s/events", device);

Checking ls /sys/devices/ the only similar directory was named i915_0000_03_00.0. Setting this line to

const char* device = "i915_0000_03_00.0";

and recompiling with make removed the errors. Finally, to get the GPU bar to show up I had to press 5 on my keyboard whilst running sudo btop.

I could try to make a pull-request for this but I do not know if the standard directory name is i915, i915_0000_03_00.0 or something else.