Difference between revisions of "Lenovo ThinkPad X230"
m (→Power Saving: stub + link)
m (Fix kernel module parameter syntax (the i915_ prefix of enable_rc6 et enable_fbc has been removed upstream))
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options i915 =1 =1 lvds_downclock=1
options iwlwifi 11n_disable=1
options iwlwifi 11n_disable=1
Revision as of 14:28, 2 January 2015
Lenovo ThinkPad X230 comes with a wide range of available configurations. Since Lenovo's acquisition of the ThinkPad brand from IBM, it has received lots of negative criticism for not maintaining the original quality and compromising the brand itself. Regardless, ThinkPad still is one of the first preferences for many geeks, students (mainly due to student discounts) and Linux users. It is the standard option available in Lenovo's X Series under 12-13 inches display category.
|CPU||Intel(R) Core(TM) i5-3210M CPU @ 2.50GHz|
|Graphics||Intel HD 4000 - Ivy Bridge|
|Disk||Crucial M4 120GB SSD|
|Wireless||2x2 Centrino Wireless-N 2200|
|Built-in Battery||9 Cell|
|Additional Plugable Battery||6 Cell 19+|
Works out of the box. See fprint article for installation instructions. No extrac actions are needed.
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 && mkinitcpio -p linux-ck.
Then, to update grub2 with the new kernels you have to run
grub-mkconfig -o /boot/grub/grub.cfg.
TrackPoint scrolling (wheel emulation)
To enable scrolling with the TrackPoint while holding down the middle mouse button, create a new file /etc/X11/xorg.conf.d/20-thinkpad.conf with the following content:
Section "InputClass" Identifier "Trackpoint Wheel Emulation" MatchProduct "TPPS/2 IBM TrackPoint|DualPoint Stick|Synaptics Inc. Composite TouchPad / TrackPoint|ThinkPad USB Keyboard with TrackPoint|USB Trackpoint pointing device" MatchDevicePath "/dev/input/event*" Option "EmulateWheel" "true" Option "EmulateWheelButton" "2" Option "Emulate3Buttons" "false" Option "XAxisMapping" "6 7" Option "YAxisMapping" "4 5" EndSection
There are more details about how this works on the Xorg page.
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" 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" "32" 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 fixed in adding the acpi_osi="!Windows 2012" kernel parameter in
GRUB_CMDLINE_LINUX_DEFAULT="quiet acpi_osi=\"!Windows 2012\"" sudo grub-mkconfig -o /boot/grub/grub.cfg
The fix is partial in that only 8 steps are accessible via the keys.
For more information see https://bugzilla.kernel.org/show_bug.cgi?id=51231 .
Follow the main article: Power saving
One option is to use Powerdown to save power. On this setup, it gave 14+ hours on a 9 cell battery and 6+ hours on plugable 6 cell external battery, with normal usage of cmus, firefox and thunderbird. Power saving kernel parameters in addition to graphics card power saving, are shown below.
grep GRUB_CMDLINE /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="quiet ipv6.disable=1 elevator=bfq" GRUB_CMDLINE_LINUX="init=/usr/lib/systemd/systemd pcie_aspm=force acpi_backlight=vendor"
elevator=bfq enables the Budget Fair Queueing storage IO scheduler, see http://algo.ing.unimo.it/people/paolo/disk_sched/ for details.
pcie_aspm=force forcefully enables the PCIE Active State Power Management and
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. After editing the grub file, make sure to regenerate your grub configuration by the command
grub-mkconfig -o /boot/grub/grub.cfg.
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.
Suspend to ram
Sleep/suspension and unsuspension can be easily managed by systemd without setting it up in Desktop Environment applet or pm-utils. But there are some modules that must be loaded off and on every time the system is put to sleep or is awaken. There's also a need to kill wpa_supplicant by adding
systemctl restart wpa_supplicant.service in the
sleep.sh file below. And it is quite fast with systemd anyway.
#!/bin/bash if [ "$1" = "pre" ]; then killall -9 wpa_supplicant #nm-applet bug's workaround fi if [ "$1" = "post" ]; then /sbin/modprobe -rvf iwldvm /sbin/modprobe -rvf iwlwifi /sbin/modprobe -v iwldvm /sbin/modprobe -v iwlwifi fi
Put vboxdrv in it too, if you use VirtualBox. There is also 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