[squeak-dev] Fwd: Problem with fonts on Linux with compositing
ken at kencausey.com
Sun Aug 17 15:56:02 UTC 2008
On Sun, 2008-08-17 at 17:04 +0200, Bert Freudenberg wrote:
> Am 17.08.2008 um 11:29 schrieb laurent laffont:
> > Hi,
> > I've switched to KDE4 and played with composite rendering. With
> > last squeak dev images some fonts are not rendered: it seems to be
> > interpreted as a transparent region by the composite manager (see
> > screenshot). I've tested this on my two debian boxes.
> > This problem is not present in sq3.9.1-7075dev08.07.1 image, so I
> > suppose it's due to NiceFont integration ?
> Maybe it occurs more often with nice fonts, but it actually is a
> combined VM/image problem.
> The VM prefers a 32 bit X visual (with alpha channel) over a 24 bit
> one. If a compositing window manager is used, the alpha channel is
> used for transparency, but the image generally does not care about the
> alpha channel in its frame buffer.
Does that mean there is some core location(s) where the alpha channel
needs to be defaulting to full opacity but currently it is not?
> The olpc branch in the SVN repository has a fix for that, see
> - Bert -
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