Public bug reported:
Thumbnails used in the dash are blurry for small svg images. In contrast
to that the previews in the dash are specifically rendered for the dash
and show in correct resolution.
Nautilus is setup to display icons in 100% zoom level (default). In
Nautilus or on the desktop, svg thumbnails of 24×24px svg images are
smaller than the maximum available thumbnail area and are displayed in
screen pixels (which is very tiny, could also be a bug).
It appears the Unity dash looks up if a thumbnail exists for a specific file in
~/.cache/thumbnails/normal, chooses that thumbnail and stretches it to the
maximum available thumbnail area in the dash.
This makes vector graphics appear like they where raster graphics and look very
blurry.
Ubuntu: 14.04
unity: 7.2.2+14.04. amd64
** Affects: unity (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "screenshot of the thumbnail as shown in the dash (behind:
the desktop with the same file)"
https://bugs.launchpad.net/bugs/1349376/+attachment/4164278/+files/unity-hidpi-thumbnail-dash.png
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https://bugs.launchpad.net/bugs/1349376
Title:
vector graphic thumbnails blurry in dash on high-dpi screen
Status in “unity” package in Ubuntu:
New
Bug description:
Thumbnails used in the dash are blurry for small svg images. In
contrast to that the previews in the dash are specifically rendered
for the dash and show in correct resolution.
Nautilus is setup to display icons in 100% zoom level (default). In
Nautilus or on the desktop, svg thumbnails of 24×24px svg images are
smaller than the maximum available thumbnail area and are displayed in
screen pixels (which is very tiny, could also be a bug).
It appears the Unity dash looks up if a thumbnail exists for a specific file
in ~/.cache/thumbnails/normal, chooses that thumbnail and stretches it to the
maximum available thumbnail area in the dash.
This makes vector graphics appear like they where raster graphics and look
very blurry.
Ubuntu: 14.04
unity: 7.2.2+14.04. amd64
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