I asked about fixing DPI in 12.04.

The 14.04 release notes list "Support for High-DPI screens and desktop scaling."

Post upgrade, it seems that nothing has changed. Similar symptoms from my previous post persist:

  • The 1" square here is closer to 1/2"
  • Despite the line xserver-command=X -dpi 170 in /etc/lightdm/lightdm.conf, xdpyinfo reports 96x96 dpi

I did find that I was able to use the "Scale for menu and title bars" slider in System Settings>Displays to fix title bar text size instead of setting org.gnome.desktop.interface text-scaling-factor as described here.

The last post also mentions that in Gnome 3, DPI is hard coded to 96. Is this a limitation in 14.04? (I am somewhat ignorant to the distinction between Gnome and Unity) Can I do anything to properly set my DPI?

  • I have a Macbook Pro Retina. As I don't care about ultra hd, what has worked for me is to set the resolution to 1440x900. – George Politis Oct 3 '14 at 19:27

The option "Scale for menu and title bars" should suffice, it's kind of badly named, it scales everything and not only menu and title bars. I'm using it on a 13.3'' 3200x1800 screen and it works.

The only thing you have to add to that is an option in about:config in Firefox (and Thunderbird if you use it)

  • If you have to adjust settings in other programs, it is not scaling everything. Perhaps it's scaling all of the system UI elements, but the question is about changing DPI system-wide. – jake Oct 6 '14 at 13:19
  • @jake: It scales DPI system-wide, but Firefox ignores the system wide setting. Every other software that I've tried works. – LeartS Oct 6 '14 at 14:51
  • @LeartS No it is not firefox's fault. Did you try eclipse? Netbeans? Chrome? Skype? Brackets? ... Firefox in fact, does pretty good job, especially with the AutoHiDPI addon. – Dimitris_M Apr 7 '15 at 20:12
  • Those are all applications that use their own toolkit and ignore what the underlying system tells them, i.e. "it's their fault". But a lot of them are rapidly adapting, for example Chrome, Chromium, Android Studio, PyCharm now all work by default – LeartS Jul 7 '15 at 9:06

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.