My system is AMD HD7660D processor, integrated graphics processor. This week
I updated from FreeBSD 10.0-RELEASE using vesa driver to 10.1-RELEASE using the
updated radeon driver, and vt console.
Behaviour with stellarium has changed. Has anyone else come across this?
When I ran stellarium 0.13.1 on 10.0 with the 'old' graphics xorg packages and
vesa driver, the sky was drawn correctly, although a bit slowly at about 2 fps;
After upgrading FreeBSD to 10.1, but still using the vesa graphics driver (but
all the updated release software packages), the sky is drawn correctly and
visibly faster, say 10 fps, then I run stellarium in 10.1 with the new radeon
driver, the stars and planets in the sky are all dark, though lines and legends
are drawn ok (and faster of course.)
i.e. identical software, except the graphics driver. Different picture!
I tried raising the relative/absolute size of stars, that only gave me a foggy
area around where the star should be, but no bright point.
So I tried regressing stellarium to 0.12.4. That's the qt4 version. this
draws at speed, and zooms in just fine on FreeBSD 10.1. So my workaround is to
use the updated BSD and xorg, but the regressed stellarium 0.12.4. I wonder if
anyone has spotted a difference between qt4 and qt5 behaviour. If there's any
test I can do that may help illuminate the issue, just let me know.
I am fine with C/C++ programming, but sadly, OpenGL and shader programming is
counted amongst the 'dark arts' for me at present.
regardsGraham
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