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Display wizard can be used to configure your video driver and display settings.
To access the display wizard, go to Control Panel ➜ Display or reboot the system and select "6 Run the Display Wizard" from the boot menu. If you start the display wizard from Control Panel, you will receive the message shown in Figure 8.13a:
If you are not ready to reboot the system, press "No" and restart the Display wizard when you are ready. Once you select "Yes", you will be prompted for your password. The system will then reboot into the display wizard, shown in Figure 8.12b:
This screen can be used to select the desired screen resolution, color depth, and video driver. If you select the "vesa" driver, it will always work but will provide sub-optimal performance. Click on the drop-down menu to select the driver that most closely matches your video card name.
Advanced users can select their monitor's horizontal sync and vertical refresh rate in the "Advanced" tab, seen in Figure 8.12c:
If your computer is connected to two monitors, check the box "Enable Dual-Head support".
Desktop Effects, Compiz, and Compositing
If XFCE is installed, you can enable compositing from any logged in desktop. Go to Control Panel ➜ Window Manager Tweaks ➜ Compositor. If Window Manager Tweaks does not appear in the Control Panel menu, use the desktop selector drop-down menu to select "All" or "XFCE".
In the screen shown in Figure 8.12e, check the "Enable display compositing" box to enable the compositing options.
If you do not use KDE or XFCE, install Control Panel ➜ Package Manager ➜ Misc ➜ Compiz. Once installed, you can configure Compiz by clicking System ➜ Preferences ➜ CompizConfig Settings Manager while logged into GNOME or by typing ccsm from any desktop. This will open the screen shown in Figure 8.12f.instead using
If you are having problems with your display settings and would like to manually edit /etc/X11/xorg.conf or run Xorg --config, first tell the PC-BSD® system to not automatically start X. You can temporarily stop your current X session and prevent additional sessions from starting by typing this command as the superuser:
This will drop you down to a console where you can try the instructions in theto manually configure and test Xorg. Once you have a configuration that works for you, save it to /etc/X11/xorg.conf, and restart gdm to test the configuration:
If your graphics white-out after a suspend or resume, try running this command as the superuser:
If that fixes the problem, carefully add this line to /etc/sysctl.conf:
If that fixes the problem, add that line to the .xprofile file in your home directory.