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=== Touch Screens ===
=== Touch Screens ===
Revision as of 11:07, 4 December 2013
(Sorry for the inconvenience)
Many PC-BSD® users successfully run PC-BSD® on their laptops. To determine if the hardware on your laptop is supported, search the. Consider adding to this list if your model is not listed or the information for your model is out-of-date.
Depending upon the model of laptop, you may run across some issues. These typically deal with:
- Sleep/suspend: unfortunately, is not an exact science, meaning that you may have to experiment with various sysctl variables in order to achieve successful sleep and suspend states on your particular laptop model. A BIOS setting of S1 can lead to a system freeze. If your laptop is a ThinkPad, is an excellent source. For other types of laptops, try reading the SYSCTL VARIABLES section of man 4 acpi and check to see if there is an ACPI man page specific to your vendor by typing apropos acpi. The section of the FreeBSD Handbook demonstrates how to determine your current sysctl values, modify a value, and make a modified value persist after a reboot. If the battery reading is incorrect, try the workaround in this .
- Internal wireless: some chipsets do not have a FreeBSD driver yet.
- Synaptics: depending upon the hardware, you may or may not be able to disable the system's touchpad. This describes how to enable Synaptics and some of the sysctl options that this feature provides.
- Optimus graphics: the current workaround is to disable Optimus in the BIOS, set the onboard Intel video to be dominant, or to change the graphics mode to discrete.
If you wish to test your laptop's hardware, use the Hardware Compatibility icon in the first screen of the installer before continuing with the installation.
If you would like to install PC-BSD® onto an Asus Eee, read thefirst.
Thehas some tips for reducing power consumption.
ThinkPads with Known Bugs
The ThinkPad T420 may panic during install. If it does, go into the BIOS and set the video mode to "discrete" which should allow you to complete an installation.
Some Thinkpads have a BIOS bug that prevents them from booting from GPT labelled disks. If you are unable to boot into a new installation, restart the installer and go into Advanced Mode in the Disk Selection Screen/10.0. Make sure that the "Partition disk with GPT" box is unchecked. If it was checked previously, redo the installation with the box unchecked.
Acer Laptops with Known Bug
In models 2920z and 4920G, there is an issue with the BIOS settings for the HPET timer. The solution is to set a.
Boot the installation media and select "7. Escape to the loader prompt" when you see the menu shown in Figure 2.2a.
At the resulting prompt, type:
You should now be able to install PC-BSD®. Once the installer boots for the first time, you will need to repeat that command in order to boot into PC-BSD®. Once you are in PC-BSD®, you can make the hint permanent by carefully adding this line to /boot/loader.conf as the superuser:
PC-BSD® should automatically detect USB-based touch screen devices. If your display is USB and is not auto-detected, send the output of usbconfig and your /etc/X11/xorg.conf file tusing the PC-BSD® Bug Reporting/10.0 tool.