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rated 0 times [  9] [ 0]  / answers: 1 / hits: 16734  / 12 Months ago, tue, may 30, 2023, 7:25:03

I have got a brand new Lenovo X1 Carbon 2015 with IPS Display which is really a great laptop. But when installing ubuntu there are some problems I have already solved and some I have not. I put this all in one questions as this might be a good reference for other users.



I have installed a fresh copy of ubuntu 14.04.02



Wifi is disconnecting



Wifi works first but is disconnecting after less than five minutes. If it disconnects it can't see the SSID anymore.



lspci | grep Wireless


04:00.0 Network controller: Intel Corporation Wireless 7265 (rev 3b)



Clickbuttons are not working at all



The Touchpad and trackpoint are working fine. The clickbuttons do not work. In some Programs they do a scroll down/scroll up.



Vertical Scrolling



After fixing the clickbuttons with psmouse proto=imps the trackpoint in combination with the middle button does no vertical scrolling



Special Keys (like Brightness)



Some keys like Volume up/down work out of the box, most don't (mute, Brightness, Wifi).



Screen Characters scrambled on 14.10



On 14.10 sometimes most characters on the screen are just simply gone or scrambled. It looks really weired.



UNRESOLVED: Trackpoint Sensitivity



With other thinkpad models you can control the sensitivity of the trackpoint with /sys/devices/platform/i8042/serio1/serio2/sensitivity



This file ist not available for me. I searched /sys/devices for a file called sensitivity without success.


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 Answers
2

Wifi is disconnecting



Open a Terminal with Ctrl + Alt + T and enter



sudo su

echo "options iwlwifi 11n_disable=1" >> /etc/modprobe.d/iwlwifi.conf

update-initramfs -u

reboot


You can try to use "11n_disable=8" to gain more speed as suggested in a comment. For me it didn't work as my wifi is unstable with "11n_disable=8" but your mileage may vary. I have no speed problems and no interrupt problems with "11n_disable=1".



Clickbuttons are not working at all



Open a Terminal with Ctrl + Alt + T and enter



sudo su

echo "options psmouse proto=imps" > /etc/modprobe.d/psmouse.conf

echo thinkpad_acpi > /etc/modules-load.d/thinkpad_acpi.conf

echo "options thinkpad_acpi force_load=1" > /etc/modprobe.d/thinkpad_acpi.conf 

update-initramfs -u

reboot


With this your buttons are working again. But you can't click on the complete touchpad anymore. Just the bottom of the touchpad recognizes clicks. But that's fine for me.



But the vertical scrolling with the middle button/trackpoint is not working. See below.



Special actions on Function keys



Open a Terminal with Ctrl + Alt + T and enter



sudo su

echo thinkpad_acpi > /etc/modules-load.d/thinkpad_acpi.conf

echo "options thinkpad_acpi force_load=1" > /etc/modprobe.d/thinkpad_acpi.conf 

update-initramfs -u

reboot


The special actions like Volume, Brightness, Beamer and Wifi toggle on F1-F8 are working now as expected. Special actions on F9-F12 are not working.



By the way: "FnLk" on the Esc Key means "Function Lock". You can activate the Function Lock with pressing Fn + Esc.



The brightness setting is not retained after a reboot.



Vertical Scrolling



Open a Terminal with Ctrl + Alt + T and enter



sudo su

export FILE="/etc/X11/Xsession.d/99trackpoint"

echo 'xinput set-prop "PS/2 Synaptics TouchPad" "Evdev Wheel Emulation" 1' > $FILE

echo 'xinput set-prop "PS/2 Synaptics TouchPad" "Evdev Wheel Emulation Button" 2' >> $FILE

echo 'xinput set-prop "PS/2 Synaptics TouchPad" "Evdev Wheel Emulation Timeout" 200' >> $FILE

echo 'xinput set-prop "PS/2 Synaptics TouchPad" "Evdev Wheel Emulation Axes" 6 7 4 5' >> $FILE

reboot


After rebooting you have vertical and horizontal scrolling with trackpoint and middle button.



Screen characters scrambled



Open a Terminal with Ctrl + Alt + T and enter



sudo su

mkdir /etc/X11/xorg.conf.d/

cd /etc/X11/xorg.conf.d/

echo 'Section "Device"'                      > 20-intel.conf

echo '    Identifier  "Intel Graphics"'     >> 20-intel.conf

echo '    Driver      "intel"'              >> 20-intel.conf

echo '    Option      "AccelMethod"  "uxa"' >> 20-intel.conf

echo 'EndSection'                           >> 20-intel.conf

reboot


Screen characters are not scrambled anymore.


[#20843] Wednesday, May 31, 2023, 12 Months  [reply] [flag answer]
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