The fix is only almost right except that the DMI matches are wrong: The
X40 and X41 are pre-Lenovo, so the following patch is needed:
diff --git a/ubuntu/hwmon/hdaps_ec.c b/ubuntu/hwmon/hdaps_ec.c
index ce68a5a..9853562 100644
--- a/ubuntu/hwmon/hdaps_ec.c
+++ b/ubuntu/hwmon/hdaps_ec.c
@@ -791,8 +791,8 @@ struct dmi_system_id __initdata hdaps_whitelist[] = {
HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad T42p", HDAPS_ORIENT_INVERT_XY),
HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T60",
HDAPS_ORIENT_INVERT_XY),
HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad T61",
HDAPS_ORIENT_INVERT_XY),
- HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X40", HDAPS_ORIENT_INVERT_Y),
- HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X41", HDAPS_ORIENT_INVERT_Y),
+ HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad X40", HDAPS_ORIENT_INVERT_Y),
+ HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad X41", HDAPS_ORIENT_INVERT_Y),
HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X60 Tablet",
HDAPS_ORIENT_INVERT_Y),
HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X60s",
HDAPS_ORIENT_INVERT_Y),
HDAPS_DMI_MATCH_INVERT("LENOVO", "ThinkPad X60", HDAPS_ORIENT_SWAP |
HDAPS_ORIENT_INVERT_X),
** Changed in: linux (Ubuntu)
Status: Fix Released => In Progress
--
hdaps Y axis inverted
https://bugs.launchpad.net/bugs/33950
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