Arthur Marsh wrote on 03/12/15 23:23:
With an update to KDE from unstable, iceweasel from unstable locked up every time until I upgraded iceweasel to experimental. Now iceweasel runs fine under KDE. As previously mentioned running with Radeon 3200HD (RS780) and vdpau libraries installed. Arthur.
I had one lock-up after installing the latest Linus' git head kernel with some Radeon-specic updates but did not lock up on a second attempt.
This seems to be an issue related to the graphics card used. Arthur.