Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

How to disable HiDPI support

  • 4 replies
  • 1 has this problem
  • 3 views
  • Last reply by cor-el

dergrunepunkt
dergrunepunkt
more options

Firefox seems to detect that I'm using a HiDPI display and scales automatically, I really want to disable this so GNOME can handle the window scaling. I can't find the way. BTW changing the "layout.css.dpi" about:config makes no difference.

I'm using:

  • FF Quantum
  • GNOME 3.26.2
  • Ubuntu 17.10

Cheers

Firefox seems to detect that I'm using a HiDPI display and scales automatically, I really want to disable this so GNOME can handle the window scaling. I can't find the way. BTW changing the "layout.css.dpi" about:config makes no difference. I'm using: * FF Quantum * GNOME 3.26.2 * Ubuntu 17.10 Cheers

All Replies (4)

user1929
user1929
more options

Does it work if you set layout.css.devPixelsPerPx in about:config to 1.0?

dergrunepunkt
dergrunepunkt Question owner
more options

Like I mention in my original posting that makes no difference.

user1929
user1929
more options

Just to be clear, you've tried both "layout.css.dpi" (which is what you mentioned in your original post) and "layout.css.devPixelsPerPx", and neither one worked? Because they're different settings.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

See also:

  • bug 1081142 - [HiDPI] select an appropriate scale factor on Linux

(please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html)