Ubuntu
meta-gnome2 package

  1. Bug #521492
  2. Comment #28

Comment 28 for bug 521492

Revision history for this message
Daniel U. Thibault (d-u-thibault) wrote : Re: Dual Monitor wallpaper is not scaling across both monitors, same background is repeated on both monitors instead

My display configuration(virtual desktop) consists of two monitors. From left to right:
* 1600x1200, rotated left (hence 1200x1600 really) (secondary monitor)
* 1920x1200 (main monitor)

The virtual desktop thus measures 3120x1600 (with a dent taken out of it in the lower right hand corner). The wallpaper used for these tests measures 2560x1600 px.

The Help is not synchronised with the UI; it describes "Centered/Fill Screen/Scaled/Zoom/Tiled" but the Appearance: Preferences: Background Style drop-down lists "Tile/Zoom/Center/Scale/Stretch/Span". Note how Span is missing and how Stretch <=> Fill Screen.

Tile: Instead of two images side-by-side (left full width, right ~one-fifth width), the tiling uses the central part of the image (1920x1200) and tiles that. Note how the main monitor's size was used instead of the whole desktop's.

Zoom: Does not zoom to cover the entire virtual desktop, but instead zooms within each display separately.

Center: Does not center with respect to the entire virtual desktop, but instead centers within each display separately.

Scale: Does not scale with respect to the entire virtual desktop, but instead scales within each display separately.

Stretch: Does not stretch over the entire virtual desktop, but instead stretches within each display separately.

Span: Not specified, but the expectation is an aspect-ratio-preserving scaling that covers the entire virtual desktop. In actuality, it only stretches until the vertical size is achieved (1600 px here), leaving two ugly bands on either side.