hyprland-wiki/pages/Crashes and Bugs/_index.md

# Crashes & Bugs

## Getting the log

If you are in a TTY, and the hyprland session that crashed was the last one you
launched, the log will be printed with

```sh
cat /tmp/hypr/$(ls -t /tmp/hypr/ | head -n 1)/hyprland.log
```

feel free to save it to a file, save, copy, etc.

if you are in a Hyprland session, and you want the log of the last session, use

```sh
cat /tmp/hypr/$(ls -t /tmp/hypr/ | head -n 2 | tail -n 1)/hyprland.log
```

## Crashes at launch

Diagnose the issue by what is in the log:

- `sWLRBackend was NULL!` -> launch in the TTY and refer to the wlr logs in RED.
- `Monitor X has NO PREFERRED MODE, and an INVALID one was requested` -> your
  monitor is bork.
- Other -> see the coredump. Use `coredumpctl`, find the latest one's PID and do
  `coredumpctl info PID`.
- failing on a driver (e.g. `radeon`) -> try compiling with
  `make legacyrenderer`, if that doesn't help, report an issue.
- failing on `wlr-xxx` -> try compiling with `make legacyrenderer`, if that
  doesn't help, report an issue, and also refer to the TTY wlr logs in RED like
  in the first point.
- failing on `Hyprland` -> report an issue.

## Crashes not at launch

Report an issue on GitHub or on the Discord server.

## Bugs

First of all, **_READ THE [FAQ PAGE](../FAQ)_**

If your bug is not listed there, you can ask on the Discord server or open an
issue on GitHub.