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Improve markdown and wording in DEBUGGING.md

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dawe
2025-10-30 18:42:44 -04:00
committed by Ashley Wulber
parent 39ea8cb129
commit 6fb8b35cf5
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docs/DEBUGGING.md
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@@ -34,8 +34,8 @@ https://gitlab.freedesktop.org/wlroots/wlroots/-/wikis/DRM-Debugging documents h
## Frozen desktop
If the desktop is frozen and `ctrl+alt+f*` don't work to change to a TTY, [the magic SysRq key](https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html) with `r` can be used to swich input in raw mode, so the kernel will handle the tty switch key binding. /etc/sysctl.conf` or `/etc/sysctl.d` may need to be edited first to set `kernel.sysrq=1` or another value that allows this command.
If the desktop is frozen and `ctrl+alt+f*` don't work to change to a TTY, [the magic SysRq key](https://www.kernel.org/doc/html/latest/admin-guide/sysrq.html) with `r` can be used to switch input into raw mode, so the kernel will handle the tty switch key binding. `/etc/sysctl.conf` or `/etc/sysctl.d` may need to be edited first to set `kernel.sysrq=1` or another value that allows this command.
It is also possible to connect over `ssh` from another computer.
Then `pidof cosmic-comp` can be used to get the PID of the compositor. Then it is possible to investigate further with tools like `gdb`, using `sudo gdb` then `attach <pid>`.
Then `pidof cosmic-comp` can be used to get the PID of the compositor. Then it is possible to investigate further with tools like `gdb`, using `sudo gdb` and then `attach <pid>`.