Lenovo ThinkPad X230
MODULES="i915" BINARIES="badblocks" FILES="/etc/modprobe.d/modprobe.conf" HOOKS="base udev autodetect block filesystems keyboard fsck"
options i915 enable_rc6=1 enable_fbc=1 lvds_downclock=1 options iwlwifi 11n_disable=1
badblocks binary helps fix logical bad blocks if detected by fsck during system startup. The first line in modprobe.conf file enables different Intel HD power saving options. To see what each of the parameters does, issue the command
modinfo i915. The second line disables the wifi N mode as the Intel wireless driver suffers connection loss due to possible bugs. You can comment out this line if you want to transfer data at wireless N speeds.
After saving the above files, make sure to regenerate your init ram image by the command
mkinitcpio -p linux, and follow the steps in kernel parameters.
X230 has IPS screen with 125.37 DPI. Refer to HiDPI page for more information.
The original configuration renders the touchpad quite useless, as it behaves very jumpily. Ubuntu Bugtracker offers a solution for this issue. Add the following
Section "InputClass" Identifier "touchpad" MatchProduct "SynPS/2 Synaptics TouchPad" # MatchTag "lenovo_x230_all" Driver "synaptics" # fix touchpad resolution Option "VertResolution" "100" Option "HorizResolution" "65" # disable synaptics driver pointer acceleration Option "MinSpeed" "1" Option "MaxSpeed" "1" # tweak the X-server pointer acceleration Option "AccelerationProfile" "2" Option "AdaptiveDeceleration" "16" Option "ConstantDeceleration" "16" Option "VelocityScale" "20" Option "AccelerationNumerator" "30" Option "AccelerationDenominator" "10" Option "AccelerationThreshold" "10" # Disable two fingers right mouse click Option "TapButton2" "0" Option "HorizHysteresis" "100" Option "VertHysteresis" "100" EndSection
Setting e.g. the motion-acceleration value in dconf to 2.8 works nicely.
Backlight control keys
Due to an issue with the firmware of several ThinkPads the backlight control keys (fn + F8/F9 on the X230) don't work correctly. Setting the brightness via e.g. the GNOME power control panel or altering the brightness value in sysfs is possible.
The issue can be temporarily and partially http://www.example.com link titlefixed in adding the acpi_osi="!Windows 2012" kernel parameter. The fix is partial in that only 8 steps are accessible via the keys. See  for details.
Suspend to ram
There is an issue with system shutdown with power saving tools that cannot distinguish sys devices. You will need to add to the systemd shutdown trigger on this machine or else you'll get a system reboot when you shutdown the machine. Put this in /etc/rc.local.shutdown and update and enable its service, if not already.
#!/bin/bash # /etc/rc.local.shutdown: Local shutdown script. # A script to act as a workaround for the bug in the runtime power management module, which causes thinkpad laptops to restart after shutting down. # Bus list for the runtime power management module. buslist="pci i2c" for bus in $buslist; do for i in /sys/bus/$bus/devices/*/power/control; do echo on > $i done done
[Unit] Description=/etc/rc.local.shutdown Compatibility ConditionFileIsExecutable=/etc/rc.local.shutdown DefaultDependencies=no After=rc-local.service basic.target Before=shutdown.target [Service] Type=oneshot ExecStart=/etc/rc.local.shutdown StandardInput=tty RemainAfterExit=yes
Suspend to ram fails
As of kernel 3.10 and 3.11 suspend may fail because the kernel tries to switch off the onboard ethernet device twice (see http://forums.fedoraforum.org/archive/index.php/t-293457.html).
A workaround is to unload the driver manually and reload it on wake.
#!/bin/bash # /usr/lib/systemd/system-sleep/e1000e-probe.sh # handles e1000e driver suspend problems: # pci_pm_suspend(): e1000_suspend+0x0/0x20 [e1000e] returns -2 # dpm_run_callback(): pci_pm_suspend+0x0/0x150 returns -2 # PM: Device 0000:00:19.0 failed to suspend async: error -2 # PM: Some devices failed to suspend case "$1" in "pre") rmmod e1000e ;; "post") modprobe e1000e ;; esac
If the built-in microphone is not detected when using PulseAudio, the steps here may fix the issue: PulseAudio/Troubleshooting#Microphone not detected by PulseAudio.
Follow the main article: Power saving
Power saving kernel parameters in addition to graphics card power saving, are shown below.
acpi_backlight=vendor loads the vendor specific Backlight#ACPI driver (i.e. thinkpad_acpi) so the brightness keys (Fn + F8 and Fn + F9) work correctly.
Note that the
acpi_backlight=vendor kernel option also works with the standard Arch kernel (currently 3.7.10-1) and has the additional bonus that (Fn + spacebar) controls the keyboard lighting.
Users of TLP need to pay attention to a hardware bug according to which it is recommended to only use either the upper or lower charging threshold. The following configuration is recommended by the developer of TLP.
- Microphone on-off key does not work out of the box