The lspci command is an essential tool for users experiencing hardware issues on their Linux devices. It provides detailed information about the PCI bus systems and the devices connected to a computer's motherboard, including components like the GPU, Ethernet port, and Wi-Fi card.
To utilize this command, simply entering lspci will generate a list of all PCI devices connected to the system, displaying details such as slot addresses, vendor names, device names, and class information. However, it's important to note that this command does not include USB peripherals; for that, users should use the lsusb command.
For users looking to find specific devices, combining lspci with the grep command can streamline the process. For instance, to filter for USB controllers, the command lspci | grep "USB" can be used. Identifying devices may require some experimentation with search terms, especially when dealing with device names that do not clearly indicate their function.