Ubuntu
overlay-scrollbar package

com.canonical.desktop.interface scrollbar-mode corrupts gtk3 apps in non-Unity desktops

Bug #1316613 reported by Michael Webster
30
This bug affects 6 people
Affects Status Importance Assigned to Milestone
overlay-scrollbar (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

This setting needs to be 'normal' for non-Unity desktops (i.e. Gnome-Shell, Cinnamon) or else background color corruption occurs in certain widgets (I suspect maybe the GtkScrolledWindow widgets?)

See pictures here:

https://github.com/linuxmint/Cinnamon/issues/2771

Nothing immediately jumps out at me in the quilt patches, but I will investigate further and see if I can troubleshoot this as well.

Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in gtk+3.0 (Ubuntu):
status: New → Confirmed
Revision history for this message
Michael Webster (miketwebster) wrote :

I've discovered the package: overlay-scrollbar, and the file: os-scrollbar.c is implementing this.

http://bazaar.launchpad.net/~ubuntu-branches/ubuntu/trusty/overlay-scrollbar/trusty/view/head:/os/os-scrollbar.c

Would it be possible to check the session name (or look for Unity's dbus session name?) as a condition to apply this? I don't think blacklisting is maintainable here.

Revision history for this message
Sebastien Bacher (seb128) wrote :

the issue could be with the theme as well, the ubuntu themes have some rules to avoid those issues

affects: gtk+3.0 (Ubuntu) → ubuntu
affects: ubuntu → overlay-scrollbar (Ubuntu)
Revision history for this message
Rik Shaw (rik-shaw) wrote :

In 14.04 I am using Ambiance theme with Cinnamon, and in Cinnamon Settings there was definite corruption (black backgrounds on the "tabs") that was solved by disabling overlay-scrollbars. Maybe there is something that Cinnamon Settings can be doing differently, but wanted to note that even with Ambiance theme there is this problem with certain apps. So, not "just a theme problem".

Revision history for this message
Lars Karlitski (larsu) wrote :

No, it is not "just a theme problem", but it can be fixed by setting backgrounds for various widgets in the theme. We did that for ubuntu-themes last cycle.

These theme fixes aren't necessary with gtk 3.12 (or without overlay-scrollbars).

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