Touchpad can't work

Message

PoisonDuke · Post by **PoisonDuke** » Sun Jan 25, 2026 2:06 pm

My touchpad can't work on my Lenovo Legion Y9000P IRX8, I have i2c drive dmesg output:

[    5.462184] i2c i2c-0: Successfully instantiated SPD at 0x50
[    6.190016] i2c_designware i2c_designware.4: [Firmware Bug]: DSDT uses known not-working I2C bus speed 400000, forcing it to 100000

Can someone help me??
What a strange issue.

New at Gentoo · Post by **pietinger** » Tue Feb 03, 2026 11:30 pm

PoisonDuke,

Although I've had a lot of problems with i2c touchpads, I've never seen an error message like this before... It's possible that your touchpad doesn't work at all under Linux. To clarify this, we need a lot more information:

1. Does your touchpad work when you boot the latest Ubuntu Live CD?
1a. If not, it looks very hopeless.
1b. If so, test it with our GentooLIVE CD (use the latest version with the latest kernel).
2. Does it work there?
2a. If not... then it's going to be difficult ...
2b. If so, then you probably have a manually configured kernel ... in which case, in addition to the kernel .config, we also need everything described here:
https://wiki.gentoo.org/wiki/User:Pieti ... nformation

PoisonDuke · Post by **PoisonDuke** » Fri Feb 13, 2026 8:21 am

pietinger wrote:PoisonDuke,

Although I've had a lot of problems with i2c touchpads, I've never seen an error message like this before... It's possible that your touchpad doesn't work at all under Linux. To clarify this, we need a lot more information:

1. Does your touchpad work when you boot the latest Ubuntu Live CD?
1a. If not, it looks very hopeless.
1b. If so, test it with our GentooLIVE CD (use the latest version with the latest kernel).
2. Does it work there?
2a. If not... then it's going to be difficult ...
2b. If so, then you probably have a manually configured kernel ... in which case, in addition to the kernel .config, we also need everything described here:
https://wiki.gentoo.org/wiki/User:Pieti ... nformation

I tried some methods, it disappeared for a while, but today it reappeared

New at Gentoo · Post by **pietinger** » Fri Feb 13, 2026 5:45 pm

PoisonDuke wrote:I tried some methods, it disappeared for a while, but today it reappeared

If you want, feel free to give us more information. It might also help others with the same device.