Within the scope of the installation, all detected CD-ROM drives are integrated in the installed system by means of entries in the file /etc/fstab. The respective subdirectories are created in /media. Use this YaST module to integrate additional drives in the system.

When the module is started, a list of all detected drives is displayed. Mark your new drive using the check box at the beginning of the line and complete the integration with ‘Finish’. The new drive is then integrated in the system.

Detailed information about printing in Linux is available in Chapter 12, Printer Operation, which covers general printing issues. YaST configures the printer automatically or offers configuration dialogs to help set up the printer manually. Then you can print from the command line or configure applications to use the printing system. A detailed description for configuring printers in YaST is provided in Section 12.5.1, “Local Printers”.

Normally YaST configures the hard disk controller of your system during the installation. If you add controllers, integrate these into the system with this YaST module. You can also modify the existing configuration, but this is generally not necessary.

The dialog presents a list of detected hard disk controllers and enables assignment of the suitable kernel module with specific parameters. Use ‘Test Loading of Module’ to check if the current settings work before they are saved permanently in the system.

	Configuration of the Hard Disk Controller
This is an expert tool. Your system may no longer boot if you make incorrect settings. If you make changes, use the test option.

YaST detects hardware for the configuration of hardware components. The detected technical data is displayed in a separate screen. This is especially useful, for example, if you want to submit a support request for which you need information about your hardware.

Figure 2.6. Displaying Hardware Information

With this module, activate and deactivate the DMA mode for your IDE hard disks and your IDE CD and DVD drives in the installed system. This module does not have any effect on SCSI devices. DMA modes can substantially increase the performance and data transfer speed in your system.

During the installation, the current SUSE LINUX kernel automatically activates DMA for hard disks but not for CD drives, because default DMA activation for all drives often caused problems with CD drives. Use the DMA module to activate DMA for your drives. If the drive supports the DMA mode without any problems, the data transfer rate of your drive can be increased by activating DMA.

	Important
DMA (direct memory access) means that your data can be transferred directly to the RAM, bypassing the processor control.

If your scanner is connected and switched on, it should be detected automatically when this YaST module is started. In this case, the dialog for the installation of the scanner appears. If no scanner is detected, the manual configuration dialog appears. If you have already installed one or several scanners, a list of existing scanners that can be modified or deleted is displayed. Press ‘Add’ to configure a new device.

Next, an installation is performed with default settings. If the installation is successful, a corresponding message appears. Now, test your scanner by inserting a document and clicking ‘Test’.

2.3.6.1. Scanner Not Detected

Only supported scanners can be autodetected. Scanners connected to another network host cannot be detected. The manual configuration distinguishes three types of scanners: USB scanners, SCSI scanners, and network scanners.

USB Scanner

Specify the vendor and model. YaST then attempts to load USB modules. If your scanner is very new, the modules may not be loaded automatically. In this case, continue automatically to a dialog in which to load the USB module manually. Refer to the YaST help text for more information.

SCSI Scanner

Specify the device, such as /dev/sg0. SCSI scanners should not be connected or disconnected when the system is running. Shut the system down first.

Network Scanner

Enter the IP address or the hostname. To configure a network scanner, refer to the Support Database article Scanning in Linux (http://portal.suse.com/sdb/en/index.html, keyword scanner).

If your scanner was not detected, the device probably is not supported. However, sometimes even supported scanners are not detected. If that is the case, proceed with the manual scanner selection. If you can identify your scanner in the list of vendors and models, select it. If not, select ‘Cancel’. Information about scanners that work with Linux is provided at http://cdb.suse.de/ and http://www.sane-project.org/.

	Assigning a Scanner Manually
Only assign the scanner manually if you are absolutely sure. Incorrect selection could damage your hardware.

2.3.6.2. Troubleshooting

Your scanner may not have been detected for one of the following reasons:

• The scanner is not supported. Check http://cdb.suse.de/ for a list of Linux-compatible devices.

• The SCSI controller was not installed correctly.

• There are termination problems with your SCSI port.

• The SCSI cable is too long.

• The scanner has a SCSI light controller that is not supported by Linux.

• The scanner is defective.

	Warning
SCSI scanners should not be connected or disconnected when the system is running. Shut the system down first.

For more information about scanning, refer to the chapter about kooka in the User Guide.

When the sound configuration tool is started, YaST tries to detect your sound card automatically. Configure one or multiple sound cards. To use multiple sound cards, start by selecting one of the cards to configure. Press ‘Configure’ to enter the ‘Setup’ dialog. ‘Edit’ opens a dialog in which to edit previously configured sound cards. ‘Finish’ saves the current settings and completes the sound configuration.

If YaST is unable to detect your sound card automatically, press ‘Add Sound Card’ in ‘Sound Configuration’ to open a dialog in which to select a sound card and module. Refer to your sound card documentation for the information required. A reference list of sound cards supported by ALSA with their corresponding sound modules is available in /usr/share/doc/packages/alsa/cards.txt and at http://www.alsa-project.org/~goemon/. After making your selection, click ‘Next’ to return to ‘Setup’.

After starting and initializing this YaST module, the ‘TV and Radio Cards’ dialog appears. If your card was automatically detected, it is displayed at the top of the list. In this case, highlight the line with the mouse and select ‘Configure’. If your card was not detected, select ‘Other (not recognized)’. Press ‘Configure’ to proceed with the manual selection in which to select your card from the list of vendors and models.

If you have already configured TV or radio cards, modify existing configurations with ‘Change’. In this case, a dialog presents a list of all configured cards. Select a card and start the manual configuration with ‘Edit’.

During the automatic hardware detection, YaST attempts to assign the correct tuner to your card. If you are not sure, simply keep the setting ‘Default (recognized)’ and check whether it works. If you are not able to set all channels, this might be due to a failure of the automatic detection of the tuner type. In this case, click ‘Select Tuner’ and highlight the correct tuner type in the list.

If you are familiar with the technical details, you can use the expert dialog to specify settings for a TV or radio card. Select a kernel module and its parameters in this dialog. Also check all parameters of your TV card driver. To do this, select the respective parameters and enter the new value in the parameter line. Confirm the new values with ‘Apply’ or restore the default values with ‘Reset’.

The dialog ‘TV and Radio Cards, Audio’ enables you to connect your TV or radio card with the installed sound card. You must use a cable to connect the output of the TV or radio card with the external audio input of the sound card. This only works if the sound card is already configured and the external input is active. If you have not yet configured your sound card, select ‘Configure Sound Card’ to go to the respective dialog, described in Section 2.3.7, “Sound”.

If your TV or radio card has speaker jacks, you can also connect the speakers directly without configuring the sound card. There are also TV cards without any sound function, which do not require an audio configuration, such as those for CCD cameras.