A technician recently installed Linux on a desktop computer. The desktop has two graphics cards from two different vendors. One of the graphics cards works, but the other does not. Which of the…

lsmod reads /proc/modules and displays every kernel module currently loaded, allowing the technician to quickly determine whether a driver for the non-functional graphics card vendor has been loaded - an absent or missing module immediately points to a driver installation or detection problem as the root cause.

vmstat reports virtual memory usage, paging, block I/O, and CPU activity and provides no information about hardware drivers or kernel module state.

gdm is the GNOME Display Manager that manages graphical login sessions and is not a diagnostic utility for inspecting kernel drivers or hardware detection.

startx launches an X Window System session but does not report on which kernel modules are loaded or whether a specific hardware driver is present.