I have noticed a rendering problem with Xscreensaver demos.
All the OpenGL screensavers are rendering four small images across the top of the screen, instead of full-screen.
It's probably going to turn out to be a bug in xscreensaver or the coding of the demos, but there again these were working fine until recently.
Anyway the images are subtly different in colour, but bizarrely, the colours match between the first and third images, and between the second and fourth. Still seems to be accelerated, as stairs (for example) is still fairly quick (this particular one seems to be treacle-slow in software, as is lament).
It struck me (just a guess) that somehow the CRTC and the accelerator have got into different "modes" having their parameters such as bit depth or buffering slightly different.
Log in to post a comment.