Issue #667 has been reported by me zohe. ---------------------------------------- Bug #667: mb/lenovo/sklkbl_thinkpad: Enabling SMBus breaks trackpoint with LEN0094 touchpad https://ticket.coreboot.org/issues/667
* Author: me zohe * Status: New * Priority: Normal * Category: board support * Target version: none * Start date: 2026-10-16 * Affected versions: main * Affected hardware: Lenovo Thinkpad T480 * Affected OS: Linux (tested 6.1.170 and 6.12.111) ---------------------------------------- Change 95640, which enables the SMBus controller, breaks the trackpoint on my T480. The trackpoint and its buttons no longer react to input; the touchpad's PS/2 pass-through port is detected but the trackpoint itself isn't. The breakage seems to be in the EC: after flashing a build of coreboot with SMBus disabled, the trackpoint continues to be invisible until the EC is reset using the reset hole or by removing the batteries. My machine has a different touchpad (LEN0094) than the one that the change was tested with (TM3418-002). ---Files-------------------------------- 95640.config (29.5 KB) -- You have received this notification because you have either subscribed to it, or are involved in it. To change your notification preferences, please click here: https://ticket.coreboot.org/my/account _______________________________________________ coreboot mailing list -- [email protected] To unsubscribe send an email to [email protected]
