Red Hat Enterprise Linux 5 Administration Unleashed

158CHAPTER 6Analyzing Hardwareorkudzu --probe --class=For example, kudzu --probe --bus=PCI only displays the device on the PCI bus. Or, thecommand kudzu --probe --class=VIDEO only displays the video devices as demonstratedin Listing 6.8.LISTING 6.8Kudzu Probe for a Video Deviceclass: VIDEObus: PCIdetached: 0driver: nvidiafbdesc: “nVidia Corporation G70 [GeForce 7600 GT]”video.xdriver: nvvendorId: 10dedeviceId: 0391subVendorId: 1682subDeviceId: 2220pciType: 1pcidom: 0pcibus: 1pcidev: 0pcifn: 0If new hardware is detected, Kudzu references the hardware lookup tables in the /usr/share/hwdata/ directory installed by the hwdata software package and tries to map thehardware ID to a kernel module. If a driver is found, a configuration line for the hardwareis added to the /etc/modprobe.conf so the same driver can be used on subsequent boots.Kudzu does have a small configuration file /etc/sysconfig/kudzu with one option: SAFE.By default, SAFE is set to no. Set it to yes to enable the safe probe mode. The safe probemode disables serial port, DDC monitor, and PS/2 probing.TIPIf a kernel module is not available for an added piece of hardware, try updating thekernel and the hwdata RPM package. Support may have been recently added for thehardware.Detecting Hardware with ddcprobeKudzu runs at boot time to detect and configure new hardware, including video cards.But, what if you suspect that Kudzu was unable to properly detect the video card ormonitor in your system?