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117 lines
3.6 KiB
Markdown
117 lines
3.6 KiB
Markdown
# Troubleshooting
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## Review logs/error messages
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If things aren't working out, there may be an issue printed in the logs.
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Read on to learn more about how to see those logs.
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### Debug Overlay
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By default, pressing <kbd>Ctrl</kbd> + <kbd>Shift</kbd> + <kbd>L</kbd> will activate
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the debug overlay and allow you to review the most recently logged issues.
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It also gives you access to a Lua REPL for evaluating built-in lua functions.
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See [ShowDebugOverlay](config/lua/keyassignment/ShowDebugOverlay.md) for more
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information on this key assignment.
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### Log Files
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You can find log files in `$XDG_RUNTIME_DIR/wezterm` on unix systems,
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or `$HOME/.local/share/wezterm` on macOS and Windows systems.
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### Increasing Log Verbosity
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The `WEZTERM_LOG` environment variable can be used to adjust the level
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of logging for different modules within wezterm.
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To see maximum verbosity, you can start wezterm like this:
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```
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WEZTERM_LOG=debug wezterm
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```
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to see debug level logs for everything on stdout.
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On Windows systems you'll usually need to set the environment variable separately:
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Using `cmd.exe`:
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```
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C:\> set WEZTERM_LOG=debug
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C:\> wezterm
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```
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Using powershell:
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```
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PS C:\> $env:WEZTERM_LOG="debug"
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PS C:\> wezterm
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```
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Each log line will include the module name, which is a colon separated
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namespace; in the output below the modules are `config`,
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`wezterm_gui::frontend`, `wezterm_font::ftwrap` and `wezterm_gui::termwindow`:
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```
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10:29:24.451 DEBUG config > Reloaded configuration! generation=2
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10:29:24.452 DEBUG wezterm_gui::frontend > workspace is default, fixup windows
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10:29:24.459 DEBUG wezterm_font::ftwrap > set_char_size computing 12 dpi=124 (pixel height=20.666666666666668)
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10:29:24.461 DEBUG wezterm_font::ftwrap > set_char_size computing 12 dpi=124 (pixel height=20.666666666666668)
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10:29:24.494 DEBUG wezterm_gui::termwindow > FocusChanged(true)
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10:29:24.495 DEBUG wezterm_gui::termwindow > FocusChanged(false)
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```
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Those modules generally match up to directories and file names within the
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wezterm source code, or to external modules that wezterm depends upon.
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You can set a more restrictive filter to focus in on just the things you want.
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For example, if you wanted to debug only configuration related things you might
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set:
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```
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WEZTERM_LOG=config=debug,info
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```
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which says:
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* log `config` at `debug` level
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* everything else at `info` level
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You can add more comma-separated items:
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```
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WEZTERM_LOG=config=debug,wezterm_font=debug,info
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```
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See Rust's [env_logger
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documentation](https://docs.rs/env_logger/latest/env_logger/#enabling-logging)
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for more details on the syntax/possibilities.
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## Debugging Keyboard Related issues
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Turn on [debug_key_events](config/lua/config/debug_key_events.md) to log
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information about key presses.
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Use [wezterm show-keys](cli/show-keys.md) or `wezterm show-keys --lua` to show
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the effective set of key and mouse assignments defined by your config.
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Consider changing [use_ime](config/lua/config/use_ime.md) to see that is
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influencing your keyboard usage.
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Double check to see if you have some system level utility/software that might
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be intercepting or changing the behavior of a keyboard shortcut that you're
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trying to use.
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## Debugging Font Display
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Use `wezterm ls-fonts` to explain which fonts will be used for different styles
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of text.
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Use `wezterm ls-fonts --list-system` to get a list of fonts available on your
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system, in a form that you can use in your config file.
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Use `wezterm ls-fonts --text foo` to explain how wezterm will render the text
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`foo`, and `wezterm ls-fonts --text foo --rasterize-ascii` to show an ascii art
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rendition of that text.
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