Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
Yesterday KDE 4.1 was released and there are widely known 2D performance problems with the GeForce 8 and 9 series, which are especially exhibited when using the K Desktop Environment. So you think NVIDIA would address this issue in their next driver update? Guess again. Early this morning NVIDIA had released a new driver as version 173.14.12. This is the first NVIDIA Linux driver release in a month and a half, but its change-log is quite slim.
More information on NVIDIA's 2D performance problems can be read here in the forums. From our testing of the driver thus far and with the feedback of others, it looks like this issue still hasn't been resolved nor is it mentioned in their release notes. What is, however, mentioned in their release note is fixing a problem with missing rendering in OpenGL workstation overlays, running some SDL applications and virtual terminal switching, addressing a potential crash in nvidia-settings when saving the X configuration file, and improving the error recovery paths in the case of corruption of the commands set to the GPU. In addition, there is added product support for the NVIDIA GeForce 8600GS. That's it for the official changes.