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add drm log instructions

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Vaxry 2024-08-18 20:05:57 +02:00
parent 79af395150
commit 37e8cf0d14
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pages/Crashes and Bugs/_index.md
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@ -141,3 +141,28 @@ Now, in either `cwd`, `~` or `./build`, search for file(s) named
`asan.log.XXXXX` where XXXXX is a number.
Zip all of them up and attach to your issue.
## Debugging DRM issues
DRM (Direct Rendering Manager) is the underlying kernel architecture to take a gpu buffer (something
we can render to) and put it on your screen (via the gpu) instead of a window.
Freezes, glitches, and others, can be caused by issues with Hyprland's communication with DRM, the driver
or kernel. In those cases, a DRM log is helpful.
_Please note, these logs are EXTREMELY verbose. Please reproduce your bug(s) ASAP to avoid getting a 1GB log_
```sh
echo 0x19F | sudo tee /sys/module/drm/parameters/debug # cnables verbose drm logging
sudo dmesg -C # clears kernel debug logs
dmesg -w > ~/dmesg.log & # writes kernel logs in the background to a file at ~/dmesg.log
Hyprland
# ... repro the issue, then quit hyprland
fg # after this, use CTRL+C to stop writing the logs
echo 0 | sudo tee /sys/module/drm/parameters/debug # disables drm logging, don't forget this to avoid slowdowns
```
After this, _attach_ the `dmesg.log` file.