Archive for August, 2017
Fingerprint scanner on Thinkpad T440s under Linux – Ubuntu
To make the Lenovo Thinkpad t440s fingerprint scanner in Ubuntu (16.04.3) work, install the following:
sudo apt install fprintd libpam-fprintd
After the install – update the following file to set the timer to unlimited, otherwise the fingerprint scanner will time out during login:
sudo vi /etc/pam.d/common-auth
and look for the line that has the pam_fprintd in the name
auth [success=2 default=ignore] pam_fprintd.so max_tries=1 timeout=10
Usually the default is timeout=10 and max_tries=1, I updated mine like below, so it never times out and I have 2 tries
auth [success=2 default=ignore] pam_fprintd.so max_tries=2 timeout=-1
This works on sudo auth and login from lock, haven’t fully tested yet like startup etc. It is a little unstable though, I had it fail on me few times where it wouldn’t recognize the scanner anymore. I will update this post if I find anything.
Update heap size for Tomcat8 in Linux
If you install Tomcat8 (even tomcat7) via apt you will need to edit the file /etc/default/tomcat8 (or tomcat7) and look for the JAVA_OPTS variable. The Xmx value is there and you can set it as required.
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