Nautilus does not follow HIDPI setting

[Alex Thompson]

Since upgrading from 15.04 to 15.10, nautilus does not follow the HIDPI settings from System Settings -> Screen Display after boot/login. Restarting nautilus corrects corrects this and it follows the HIDPI settings.

1) Ubuntu 15.10
2 nautilus:
  Installed: 1:3.14.2-0ubuntu13
  Candidate: 1:3.14.2-0ubuntu13
  Version table:
 *** 1:3.14.2-0ubuntu13 0
        500 http://archive.ubuntu.com/ubuntu/ wily-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1:3.14.2-0ubuntu12 0
        500 http://archive.ubuntu.com/ubuntu/ wily/main amd64 Packages

3) I expect HIDPI settings to be followed on boot/login without restarting nautilus
4) HIDPI settings are only followed after killing and restarting nautilus

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: nautilus 1:3.14.2-0ubuntu13
ProcVersionSignature: Ubuntu 4.2.0-18.22-generic 4.2.3
Uname: Linux 4.2.0-18-generic x86_64
ApportVersion: 2.19.1-0ubuntu4
Architecture: amd64
CurrentDesktop: Unity
Date: Thu Nov 12 20:25:50 2015
GsettingsChanges: b'org.gnome.nautilus.list-view' b'default-column-order' b"['name', 'size', 'type', 'date_modified', 'date_accessed', 'owner', 'group', 'permissions', 'mime_type', 'where']"
InstallationDate: Installed on 2014-11-14 (363 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
ProcEnviron:
 LANGUAGE=en_AU:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
SourcePackage: nautilus
UpgradeStatus: Upgraded to wily on 2015-11-04 (7 days ago)

[Sebastien Bacher (seb128)]

Thank you for your bug report, what do you mean by "follow the HiDPI settings"? what do you expect to happen and what do you get instead?

[Alex Thompson (alexofdoom)]

My display is 2560x1440. I have the HIDPI setting at 1.75 to increase text and icon sizes (giving an effective screen resolution of ~1463x883).

If the HIDPI setting is 1, text and icons are small in all applications. When I increase the HIDPI setting (eg. to 1.75), font sizes and icons increase in size, but nautilus does not change. I expect nautilus to have an increased font size and icon size. I can attach screenshots to clarify this, as I don't think my explanation is clear.

[Sebastien Bacher (seb128)]

having a screenshot would be useful yes. Is the issue specific to nautilus? is it resolved after a session restart?

[Alex Thompson (alexofdoom)]

The issue is specific to nautilus (as far as I've seen). It usually returns after a session restart (killing and relaunching nautilus fixes the issue). I've attached a before and after image to illustrate the issue, with gedit providing a control to show the 1.75 DPI scaling setting.

[Sebastien Bacher (seb128)]

Oh, ok, so it does follow the settings, it just doesn't pick up the changes dynamically... that could be resolved with the update
from bug #1480217 that got uploaded to xenial and trusty

[Alex Thompson (alexofdoom)]

Not quite. After restarting nautilus it does follow changes made to the setting (eg, I can set it back to 1 and nautilus looks like the first screenshot, or up to 2 and icons and text are larger), before restarting nautilus it doesn't follow any changes, while all other applications do.

Hope that's clear, I appreciate your efforts in making me explain the problem properly!

[Sebastien Bacher (seb128)]

right, it would be interesting to see if the previously pointed bugfix resolves your issue, unsure if Iain was planning to get that SRU in 15.10 as well though...

[Launchpad Janitor (janitor)]

[Expired for nautilus (Ubuntu) because there has been no activity for 60 days.]