Toshiba Portege M100 User Manual - Page 167

Troubleshooting Monitor Refer also to Chapter 8, Optional Devices, and to your monitor's documentation. Problem Procedure Monitor does not turn on Make sure that the external monitor's power switch is on. Confirm that the external monitor's power cable is plugged into a working power outlet. No display Try adjusting the contrast and brightness controls on the external monitor. Press hotkeys Fn + F5 to change the display priority and make sure it is not set for the internal display. Display error occurs Check that the cable connecting the external monitor to the computer is attached firmly. If problems persist, contact your dealer. Monitor goes into panning mode Check your monitor specification. It might not support the selected resolution and refresh rate. The resolution on the monitor might go into panning mode when wide screen resolution is selected. Refer to Appendix B, Display Modes. Sound system Problem No sound is heard Procedure Adjust the volume control dial. Check the software volume settings. If appropriate, make sure the headphone connection is secure. Check Windows Device Manager and ensure the sound function is enabled and that settings for I/O address, interrupt level and DMA are correct for your software and do not conflict with other hardware devices that you have connected to the computer. If problems persist, contact your dealer. Satellite M100 9-9