Disable kalman filter Inoi R7

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A simple patch to improve touchscreen responsiveness by disabling kalman filter on Inoi R7

This works only on Inoi R7. Jolla tablet and Jolla 1 don't use kalman filter.

For Jolla C/AquaFish version go to https://openrepos.net/content/toxip/disable-kalman-filter-jolla-caquafish


This tampers with a critical file droid-hal-device.conf. If something goes wrong the device might not boot. There should be no risk in using the patch but I make no guarantees. Should the device fail to boot, restore droid-hal-device.conf under /var/lib/environment/compositor to its original state in recovery mode.

Use at your own risk!

Source https://github.com/topiasv/disable-kalman-filter/tree/inoi

Donations always welcome!

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Application versions: 
File disable-kalman-filter-inoir7-0.1-1.noarch.rpm3.54 KB03/10/2017 - 21:15
File disable-kalman-filter-inoir7-0.1-2.noarch.rpm3.59 KB04/10/2017 - 00:40

- Fixed line endings


nomaster's picture

Failed to install patch when I try to apply. Any suggestions?

toxip's picture

Can you please tell me your Sailfish OS version and post the file contents under /var/lib/environment/compositor/ here so I can fix the patch. Thank you!

Ygriega's picture

Works smoothly. After one day of testing I can say that the swipe lags are completely gone now.