Lenovo Thinkpad X1 Carbon 7th gen kernel 5.14.0-0.rc3.29.fc35.x86_64+debug These errors happen with kernels 5.11+ through 5.14-rc3. I haven't tested older kernels. [ 4.138577] i801_smbus 0000:00:1f.4: enabling device (0000 -> 0003) [ 4.141533] i801_smbus 0000:00:1f.4: SPD Write Disable is set [ 4.141600] i801_smbus 0000:00:1f.4: SMBus using PCI interrupt *[ 4.349174] i801_smbus 0000:00:1f.4: Timeout waiting for interrupt! [ 4.349178] i801_smbus 0000:00:1f.4: Transaction timeout *[ 4.352052] i801_smbus 0000:00:1f.4: Failed terminating the transaction *[ 4.352133] i801_smbus 0000:00:1f.4: SMBus is busy, can't use it! * = dmesg paints these messages in red text Should I file a bug somewhere? Where and what information to include? Thanks, -- Chris Murphy