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Problem Description: prompt “piix4” when Ubuntu starts up_ smbus 0000:00:07.3: SMBus Host controller not enabled”

Version: Ubuntu 18.04 VMware 14.0

Reason: I2C is loaded into the system_ Piix4 module, because the system can not find this module, so an error is reported

Solution: 1. Find out the exact name of the loading module. Command: lsmod | grep I2C (query result: I2C_ Piix4 module)

2. Put the module in the no load list. Edit file command: sudo VI/etc/modprobe.d/blacklist.conf, add blacklist I2C to the last line of the file_ Piix4, save and exit

3. Regenerate the boot file. Command: sudoupdate initramfs – U – K all

4. Restart the system. Command: Reboot

Command screenshot: