qubes-doc/troubleshooting/thinkpad-troubleshooting.md
2016-10-11 00:29:44 -07:00

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---
layout: doc
title: ThinkPad Troubleshooting
permalink: /doc/thinkpad-troubleshooting/
redirect_from:
- /doc/thinkpad_x201/
- /en/doc/thinkpad_x201/
- /doc/Thinkpad_X201/
- /wiki/Thinkpad_X201/
---
# ThinkPad Troubleshooting #
## Instructions for getting your Lenovo Thinkpad X201 & X200 laptop working with Qubes/Linux ##
For being able to boot the installer from USB, you have to disable VT-d in the BIOS.
Enter the BIOS by hitting F1, go to Config - CPU and then disable there VT-d.
After the installation, you have to set a startup-parameter for Xen, to be able to activate VT-d again:
1. Open a terminal in dom0
2. Edit `/etc/default/grub`
3. Add to the line `GRUB_CMDLINE_XEN_DEFAULT` the setting `iommu=no-igfx`, save and quit
4. sudo `grub2-mkconfig --output /boot/grub2/grub.cfg`
Then reboot, enter BIOS and re-enable VT-d.
### Getting scrolling with the Trackpoint and the Middle Button to work ###
1. Create a script with the following content:
~~~
#!/bin/sh
xinput set-prop "TPPS/2 IBM TrackPoint" "Evdev Wheel Emulation" 1
xinput set-prop "TPPS/2 IBM TrackPoint" "Evdev Wheel Emulation Button" 2
xinput set-prop "TPPS/2 IBM TrackPoint" "Evdev Wheel Emulation Timeout" 200
xinput set-prop "TPPS/2 IBM TrackPoint" "Evdev Wheel Emulation Axes" 6 7 4 5
~~~
2. Add the script to the startup-items of your desktop environment.
## ThinkPads with Intel HD 3000 graphics ##
Several ThinkPad models have Intel HD 3000 graphics, including the T420s and the
T520. Some users with these laptops have experienced random reboots, which were
solved by adding `i915.enable_rc6=0` as a kernel parameter to
`GRUB_CMDLINE_LINUX` in the file `/etc/default/grub` in dom0.