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8 lines
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Markdown
8 lines
580 B
Markdown
# Microsoft Surface Pro 9
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## Note on Intel Panel Self Refresh (PSR)
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Intel GPUs support a feature called [Panel Self Refresh (PSR)](https://www.intel.com/content/www/us/en/support/articles/000057194/graphics.html), where the display refreshes independently of the OS. Out of the box, this can cause lots of display lag, stuttering, and enormous refresh rate drops.
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This configuration disables PSR by adding `i915.enable_psr=0` to the kernel boot parameters, at the cost of some battery life. If you want to turn PSR back on, add `i915.enable_psr=1` to your `boot.kernelParams`.
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