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--- wiki:video_drivers [2013/06/02 15:45] – external edit 127.0.0.1
+++ wiki:video_drivers [2013/10/22 15:59] (current) – [Additional AMD issues] danboid
@@ Line 18: / Line 18: @@
 When you run the Additional Drivers tool it will check the type of video hardware you have before presenting a new window in which you will see a list of compatible drivers, if any are available. You may be presented with more than one suitable driver but it's safe to use the recommended version if you're unsure which version of the driver is best for you. Select a driver, then click 'Activate' which will then download and install the new driver. The new driver will not take effect until you have rebooted.
+=====Configure default laptop screen brightness=====
+Lower laptop screen brightness settings conserve energy and increase battery life but sometimes visibility can suffer. A fresh install of KXStudio/Ubuntu defaults to the lowest brightness settings, for my laptop display at least, and I find it uncomfortable on anything other than its highest brightness setting so I set that to be the default at boot by running the command:
+  kdesudo kate /etc/rc.local
+and adding the line
+  echo 7 > /sys/class/backlight/acpi_video0/brightness
+somewhere before the line that says 'exit 0'. This command sets the screen brightness to the max value of 7, the lowest brightness setting being 0. The file /sys/class/backlight/acpi_video0/max_brightness tells you what the max setting is.
+It's important to note that the path to the brightness setting as well as the values used may differ depending on your video hardware. laptop model and display config so you will have to check for the presence of these files and discover their correct locations before modifying rc.local.
 =====Nvidia video fixes and tweaks=====
-To enable the screen brightness control keys and disable the NVIDIA boot logo on my NVIDIA-using laptop using the non-free nvidia driver I had to create a file located at /usr/share/X11/xorg.conf.d/10-nvidia-brightness.conf containing:
+To enable the screen brightness control keys and disable the NVIDIA boot logo on my NVIDIA-using laptop using the non-free nvidia driver I had to create a file located at /usr/share/X11/xorg.conf.d/10-nvidia-brightness.conf so run a command like:
+  kdesudo kate /usr/share/X11/xorg.conf.d/10-nvidia-brightness.conf
+containing (copy/paste this into that .conf file)
   Section "Device"
@@ Line 32: / Line 50: @@
   EndSection
+Then, after rebooting, I could hold the Fn key and use the up/down arrow keys to adjust my laptop screen brightness. I don't think the VendorName and BoardName matter too much here and this change should work for anyone using the non-free Nvidia driver on a laptop.
 =====Additional AMD issues=====
-For thorough information about the proprietary AMD drivers, including how to install more up-to-date drivers or how to remove the proprietary drivers and return to the FLOSS ones, see the community wiki: [[http://wiki.cchtml.com/|wiki.cchtml.com]]
+For thorough information about the proprietary AMD drivers, including how to install more up-to-date drivers or how to remove the proprietary drivers and return to the FLOSS ones, see the [[http://wiki.cchtml.com/|AMD Linux driver community wiki.]]