Lenovo ThinkPad X230
Lenovo ThinkPad X230 comes off with a wide range of available configurations. Since Lenovo's acquisition of ThinkPad brand from IBM, it has received lots of negative critics 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.
Below is the short list for this setup. After-market RAMs and SSD were bought because Lenovo is apparently charging a lot for these.
|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+|
Configured as usual with readahead and the below services.
Boot time was as roughly ~3 seconds.
Works out of the box. See fprint article for installation instructions. No extrac actions are needed.
If you really want to cut power then neither the stock kernel nor the Arch supplied kernel is optimized to run on any laptop efficiently. Try the patched kernels like linux-ck or linux-pf instead.
MODULES="i915" BINARIES="badblocks" FILES="/etc/modprobe.d/modprobe.conf" HOOKS="base udev autodetect block filesystems keyboard fsck"
options i915 i915_enable_rc6=1 i915_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. First line in modprobe.conf file enables different Intel HD power saving options. To see what each of the parameters does, issue a command
modinfo i915. The second line disables the wifi N mode as Intel wireless driver suffers connection loss due to possible bugs. You can comment on 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 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.
Pretty much self-explanatory.
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
The original configuration renders the touchpad quite useless, as it behaves very jumpy. [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 + F7/F8 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 partially in that only 8 steps are accessible via the keys.
For more information see https://bugzilla.kernel.org/show_bug.cgi?id=51231 .
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 as under.
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 Brain Fuck Scheduler written by Con Kolivas, part of Linux-ck and Linux-pf kernel forks.
pcie_aspm=force forcefully enables the PCIE Active State Power Management and
apci_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 command
grub-mkconfig -o /boot/grub/grub.cfg.
Note that the
apci_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.
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 below
sleep.sh file. 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
As of kernel 3.10 and 3.11 suspend may fail because the kernel tries to switch of 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
- [ Review based on first hand experience by original tester]