Skip to content

Commit 2712c91

Browse files
kevinoiddtor
authored andcommitted
Input: i8042 - add ThinkPad S230u to i8042 reset list
On the Lenovo ThinkPad Twist S230u (3347-4HU) with BIOS version "GDETC1WW (1.81 ) 06/27/2019", the keyboard, Synaptics TouchPad, and TrackPoint either do not function or stop functioning a few minutes after boot. This problem has been noted before, perhaps only occurring with BIOS 1.57 and later.[1][2][3][4][5] Odds of a BIOS fix appear to be low: 1.57 was released over 6 years ago and although the [BIOS changelog] notes "Fixed an issue of UEFI touchpad/trackpoint/keyboard/touchscreen" in 1.58, it appears to be insufficient. Setting i8042.reset=1 or adding 33474HU to the reset list avoids the issue on my system from either warm or cold boot. [1]: https://bugs.launchpad.net/bugs/1210748 [2]: https://bbs.archlinux.org/viewtopic.php?pid=1360425 [3]: https://forums.linuxmint.com/viewtopic.php?f=46&t=41200 [4]: https://forums.linuxmint.com/viewtopic.php?f=49&t=157115 [5]: https://forums.lenovo.com/topic/findpost/27/1337119 [BIOS changelog]: https://download.lenovo.com/pccbbs/mobiles/gduj33uc.txt Signed-off-by: Kevin Locke <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/94f384b0f75f90f71425d7dce7ac82c59ddb87a8.1587702636.git.kevin@kevinlocke.name Signed-off-by: Dmitry Torokhov <[email protected]>
1 parent f4dec2d commit 2712c91

File tree

1 file changed

+7
-0
lines changed

1 file changed

+7
-0
lines changed

drivers/input/serio/i8042-x86ia64io.h

Lines changed: 7 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -662,6 +662,13 @@ static const struct dmi_system_id __initconst i8042_dmi_reset_table[] = {
662662
DMI_MATCH(DMI_PRODUCT_NAME, "P65xRP"),
663663
},
664664
},
665+
{
666+
/* Lenovo ThinkPad Twist S230u */
667+
.matches = {
668+
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
669+
DMI_MATCH(DMI_PRODUCT_NAME, "33474HU"),
670+
},
671+
},
665672
{ }
666673
};
667674

0 commit comments

Comments
 (0)