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hwdb: add calibration override for AYANEO Flip KB/DS touchscreen

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The Goodix Capacitive TouchScreen on the AYANEO Flip KB reports an
invalid calibration range during boot, due to unreliable I2C
communication with the touch controller early in the boot sequence.
Observed values include ABS_X max as high as 65343 and ABS_Y max as
low as 256, far outside the panel's actual resolution.

Confirmed on real hardware across multiple cold boots that the
controller never reports a correct calibration on its own, including
after forcing driver re-probes via unbind/bind. Override the axis
ranges with the panel's real resolution (1200x1920).

Also covers the Flip DS, mostly identical to the Flip KB apart from a
second screen replacing the keyboard. Not independently verified on
Flip DS hardware, but consistent with a community report of the same
Y-axis maximum (1919) for that model's main display, using a
different (and seemingly non-functional) override syntax.

Note: the panel is also mounted rotated relative to the raw sensor
axes; this entry only fixes the calibration range, not rotation (most
desktop environments handle touch rotation automatically when the
display output is rotated, independent of this).
This commit is contained in:
Hijae Song
2026-08-24 12:07:42 +01:00
committed by Luca Boccassi
parent 6cff583546
commit d669464b2a
1 changed files with 13 additions and 0 deletions
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hwdb.d/60-evdev.hwdb
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@@ -432,6 +432,19 @@ evdev:name:Atmel maXTouch Touch*:dmi:bvn*:bvr*:bd*:svnGOOGLE:pnSamus:*
evdev:input:b0018v27C6p01E9*
EVDEV_ABS_18=0:255:0:0
# Goodix Capacitive TouchScreen (AYANEO Flip KB / Flip DS, main display)
# The touch controller reports an invalid/garbage calibration range at boot
# (observed ABS_X max as high as 65343, ABS_Y max as low as 256) due to
# unreliable I2C communication during early boot. Override with the correct
# panel resolution. The Flip DS is mostly identical to the Flip KB apart
# from a second screen replacing the keyboard.
evdev:name:Goodix Capacitive TouchScreen:dmi:*svnAYANEO:*pnFLIPKB**
evdev:name:Goodix Capacitive TouchScreen:dmi:*svnAYANEO:*pnFLIPDS**
EVDEV_ABS_00=0:1199:0:0:0
EVDEV_ABS_01=0:1919:0:0:0
EVDEV_ABS_35=0:1199:0:0:0
EVDEV_ABS_36=0:1919:0:0:0
#########################################
# Granite Devices Simucube wheel bases
#########################################