Hello, I added the i2c upstream maintainers for the i801 driver to Cc, maybe they have a good idea. To get an idea, find more context at https://bugs.debian.org/1106498.
On Sun, May 25, 2025 at 07:07:02PM -0400, sergio wrote: > $ dmesg -T > [dom may 25 18:35:13 2025] i801_smbus 0000:00:1f.4: Transaction timeout > [dom may 25 18:35:13 2025] i801_smbus 0000:00:1f.4: Failed terminating the > transaction > [dom may 25 18:35:13 2025] i801_smbus 0000:00:1f.4: SMBus is busy, can't use > it! That sounds as if there was a problem with the smbus driver or one of its devices. Maybe bus recovery would help, but the driver doesn't support that. I don't know if that is implementable? What devices do you have on the bus? (You can find that out in a first approximation using `ls -l /sys/bus/i2c/devices/*`.) Maybe this is a firmware issue. Are you running the newest BIOS on that machine? Best regards Uwe
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