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hardwarerelated:thinkpad_x230 [2019/04/05 01:43]
chris [UEFI bios update]
— (current)
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-===== Notes for ThinkPad x230 w/ linux ===== 
-My notes for running linux on the ThinkPad x230. Mine is model G2ET94WW. 
- 
-===== using the trackball/​nipple to scroll websites, current way ===== 
-  * fedora: yum -y install xorg-x11-apps xinput 
-  * add this to ~/​.xsession:​ 
-<​code>​ 
-xinput list | \ 
-egrep '​TPPS/​2 IBM TrackPoint|DualPoint Stick|Synaptics Inc. Composite TouchPad / TrackPoint|PS/​2 Generic Mouse' | \ 
-sed '​s/​.*id=\([0-9]\{1,​\}\).*/​\1/'​ | \ 
-while read id ; do 
-  xinput set-prop $id "Evdev Wheel Emulation"​ 1 
-  xinput set-prop $id "Evdev Wheel Emulation Button"​ 2 
-  xinput set-prop $id "Evdev Wheel Emulation Timeout"​ 200 
-  xinput set-prop $id "Evdev Wheel Emulation Axes" 6 7 4 5 # horiz. and vert. scrolling 
-  #xinput set-prop $id "Evdev Wheel Emulation Axes" 0 0 4 5 # just vert. scolling 
-done 
-</​code>​ 
- 
-===== automatic detection/​modesetting for external monitor ===== 
-I use a external 24" monitor attached to the ultrabase dockingstation. X detects the DisplayPort-output as HDMI-2, from there i use a cable to the DVI-interface of the monitor. This script is run upon userlogin from xdm.  
-<​code>​ 
-cat >>​~/​.xsession <<EOT 
-# disable internal monitor on rhel if external monitor available 
-if [[ -n $(xrandr | grep '​^HDMI2 connected'​ ) ]]; then 
-                echo "HDMI2 connected was detected.">/​tmp/​xsessionlog 
-                xrandr --output LVDS1 --off 
-                xrandr --output HDMI1 --auto 
-                xrandr --output HDMI2 --mode 1920x1080 
-fi 
-EOT 
-</​code>​ 
- 
-===== tuning LED brightness ===== 
-<​code>​ 
-yum -y install xbacklight 
-xbacklight -inc 10% 
-xbacklight -dec 10% 
-</​code>​ 
- 
-===== i915 chip power saving ===== 
-Module options help power saving. Using option "​i915_enable_rc6=7"​ leads here to suspend to RAM no longer working. 
-<​code>​ 
-echo '​options i915 i915_enable_rc6=6 i915_enable_fbc=1 lvds_downclock=1'​ > \ 
-  /​etc/​modprobe.d/​i915.conf 
-</​code>​ 
- 
  
hardwarerelated/thinkpad_x230.1554421433.txt ยท Last modified: 2019/04/05 01:43 by chris