> Depending on the selected font (and at different sizes) i regularly > see garbled renderings. these usually take the form of several glyphs > in a font missing some part of their body, often entire horizontal > stripes missing. > > This happens in different applications, so i think it belongs to the > underlying font rendering library. If you think it should be > reassigned to something other than pango, i would welcome a suggestion > of where. > > I've attached two screenshots (made with "xwd | convert - > bad-font-$whatever.png") that capture two different examples of broken text. > > in bad-font-iceweasel.png you can see that the lower-case "t" is > missing part of its stem. > > in bad-font-gnome-specimen.png you can see several glyphs are chopped > up.
fwiw, i've now updated my kernel and xorg to newer versions
(2.6.37-1-686 for the kernel, and the versions below for the xorg
packages), and moved ~/.fontconfig out of the way in case there were any
cached data causing problems.
> 0 dkg@pip:~$ dpkg -l | grep xorg
> ii xorg 1:7.6+3
> X.Org X Window System
> ii xorg-docs-core 1:1.6-1
> Core documentation for the X.org X Window System
> ii xorg-sgml-doctools 1:1.6-1
> Common tools for building X.Org SGML documentation
> ii xserver-xorg 1:7.6+3
> the X.Org X server
> ii xserver-xorg-core 2:1.9.4-2
> Xorg X server - core server
> ii xserver-xorg-dev 2:1.7.7-11
> Xorg X server - development files
> ii xserver-xorg-input-evdev 1:2.6.0-2
> X.Org X server -- evdev input driver
> ii xserver-xorg-input-kbd 1:1.5.0-2
> X.Org X server -- keyboard input driver
> ii xserver-xorg-input-mouse 1:1.6.0-2
> X.Org X server -- mouse input driver
> ii xserver-xorg-input-synaptics 1.3.0-2
> Synaptics TouchPad driver for X.Org server
> ii xserver-xorg-video-dummy 1:0.3.4-2
> X.Org X server -- dummy display driver
> ii xserver-xorg-video-intel 2:2.14.0-3
> X.Org X server -- Intel i8xx, i9xx display driver
> rc xserver-xorg-video-radeon 1:6.13.1-2+squeeze1
> X.Org X server -- AMD/ATI Radeon display driver
> 0 dkg@pip:~$
I don't see the same problems with the same glyphs since this set of
transitions (i know, i didn't hold enough variables constant to make it
a good scientific experiment), but now new glyphs fail to render properly.
Any thoughts on what i can do to get to track down this bug? I can read
around the mis-rendered glyphs myself, but it makes it awkward to do
things like show a presentation to a group of people.
--dkg
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