My video hardware is NVIDIA Corporation G94 [GeForce 9600 GT]. I use the nvidia driver 340xx legacy branch (340.96-15) Sometimes, when I want to watch a video, mplayer or mythtv fail and complain they can't initialize vdpau driver because out of resource. There is no more video memory. To fix that, i restart my desktop session and all works fine again. I had this bug for 1 year and I have just find out what is trigger this issue. A quick workaround is to disable the setting "window preview" in the task manager setting, then the GPU memory stays stable and the issue vanishes. To illustrate my issue, i've recorded a small video here : https://youtu.be/5ZAEwjZd4ug Reproducible: Always Steps to Reproduce: see the video : https://youtu.be/5ZAEwjZd4ug
This is fixed in latest plasma-framework release *** This bug has been marked as a duplicate of bug 368066 ***