By default, CDlinux tries to guess the best resolution for your monitor. But sometimes it may fail, and you get a blank screen or a message like “Out of range”, “Input not supported”, or something like that.
If this happened, you can press the “Enter” key twice. And CDlinux will restart X with a safe resolution. In most case, this will solve the problem.
If this also failed:
press Ctrl+Alt+F1 to switch to tty1
press "Enter" to active tty1
run the following command:
rm -f /etc/X11/xorg.conf
killall X
This will force CDlinux to restart X with fbdev driver.
By default, the fbdev driver in CDlinux will use 800×600 resolution and 16 bits colors. If you want other resolutions and/or color depth, please add the “vga=xxx” kernel command line parameter. Where “xxx” is listed in the following table:
| Colors | 640×480 | 800×600 | 1024×768 | 1280×1024 |
|---|---|---|---|---|
| 256 | 0×301 | 0×303 | 0×305 | 0×307 |
| 32k | 0×310 | 0×313 | 0×316 | 0×319 |
| 64k | 0×311 | 0×314 | 0×317 | 0x31A |
| 16M | 0×312 | 0×315 | 0×318 | 0x31B |
Failed again? Seems your video card doesn't support the VESA 2.0 standard. In this case, you should modify your xorg.conf manually. Call the vendor for specifications, and do some googling. Good luck!