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76 lines
2.2 KiB
Markdown
76 lines
2.2 KiB
Markdown
---
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weight: 10
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title: Crashes and Bugs
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---
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## Getting the log
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If you are in a TTY, and the hyprland session that crashed was the last one you
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launched, the log will be printed with
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```sh
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cat /tmp/hypr/$(ls -t /tmp/hypr/ | head -n 1)/hyprland.log
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```
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feel free to save it to a file, save, copy, etc.
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if you are in a Hyprland session, and you want the log of the last session, use
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```sh
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cat /tmp/hypr/$(ls -t /tmp/hypr/ | head -n 2 | tail -n 1)/hyprland.log
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```
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## Obtaining the Hyprland Crash Report
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If you have `$XDG_CACHE_HOME` set, the crash report directory is
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`$XDG_CACHE_HOME/hyprland`. If not, it's `$HOME/.cache/hyprland`.
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Go to the crash report directory and you should find a file named
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`hyprlandCrashReport[XXXX].txt` where `[XXXX]` is the PID of the process that
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crashed.
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Attach that file to your issue.
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## Crashes at launch
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Diagnose the issue by what is in the log:
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- `sWLRBackend was NULL!` -> launch in the TTY and refer to the wlr logs in RED.
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- `Monitor X has NO PREFERRED MODE, and an INVALID one was requested` -> your
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monitor is bork.
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- Other -> see the coredump. Use `coredumpctl`, find the latest one's PID and do
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`coredumpctl info PID`.
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- failing on a driver (e.g. `radeon`) -> try compiling with
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`make legacyrenderer`, if that doesn't help, report an issue.
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- failing on `wlr-xxx` -> try compiling with `make legacyrenderer`, if that
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doesn't help, report an issue, and also refer to the TTY wlr logs in RED like
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in the first point.
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- failing on `Hyprland` -> report an issue.
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## Crashes not at launch
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Report an issue on GitHub or on the Discord server.
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## Bugs
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First of all, **_READ THE [FAQ PAGE](../FAQ)_**
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If your bug is not listed there, you can ask on the Discord server or open an
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issue on GitHub.
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## Building the Wayland stack with ASan
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If requested, this is the deepest level of memory issue debugging possible.
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_Do this in the tty, with no Hyprland instances running_
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Clone hyprland: `git clone --recursive https://github.com/hyprwm/Hyprland`
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`make asan`
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Reproduce your crash. Hyprland will exit back to the tty.
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Now, in either `cwd`, `~` or `./build`, search for file(s) named
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`asan.log.XXXXX` where XXXXX is a number.
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Zip all of them up and attach to your issue.
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