From: doof <doof@localhost.localdomain>
Date: Mon, 15 Jun 2026 11:28:10 +0000 (-0400)
Subject: Steam deck lcd screen is a tablet LCD rotated in the kernel
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0a0aa429d3cc01345ad8dbff1f44d4badefccc7f;p=thirdparty%2Fsystemd.git

Steam deck lcd screen is a tablet LCD rotated in the kernel
into portrait mode.

The IMU is not active in lizard mode. The command below disables
lizard mode and activates the IMU.

echo N | sudo tee /sys/module/hid_steam/parameters/lizard_mode

Closes #42586
---

diff --git a/hwdb.d/60-sensor.hwdb b/hwdb.d/60-sensor.hwdb
index a3d707901ff..af5a81a51b2 100644
--- a/hwdb.d/60-sensor.hwdb
+++ b/hwdb.d/60-sensor.hwdb
@@ -1100,6 +1100,14 @@ sensor:modalias:acpi:SMO8500*:dmi:*:svnUMAX:pnVisionBook10WiPlus:*
 sensor:modalias:acpi:MXC6655*:dmi:*:svnUMAX:pnVisionbook12WrTab:*
  ACCEL_MOUNT_MATRIX=0, 1, 0; 1, 0, 0; 0, 0, 1
 
+#########################################
+# Valve
+#########################################
+
+# Lizard mode must be off for the IMU to activate
+evdev:input:b0003v28DEp1205*
+ ACCEL_MOUNT_MATRIX=0, -1, 0; 1, 0, 0; 0, 0, 1
+
 #########################################
 # Voyo
 #########################################