https://bugs.kde.org/show_bug.cgi?id=376844
--- Comment #11 from Mauro Carvalho Chehab <mchehab+sams...@kernel.org> --- (In reply to romeoK from comment #10) > Same error here with Kaffeine 2.0.14 > > While switching through the channellist using keyboard or mouse, sometimes > suddenly Kaffeine freezes video and audio. > > In the terminal window it then prints continously the following error > message: > > Failed to idle DMA > Failed to idle DMA > Failed to idle DMA > etc. > > The complete system seems to hang then, the mouse barely moves. I have to > press strg-alt-backspace to logout (takes up to 10 seconds until keypress is > recognised by the system) > > When i log back in, often i need to kill the process Kaffeine first before i > can use it again. > > The "failed to idle DMA" only happens when switching through channels 1 out > of ~25 times. It happens in fullscreen as well as in windowed-modes. The error message means that there's something wrong with the hardware/driver when managing the Direct Memory Access (DMA) channels. Are you using any proprietary driver? I suspect so, as, on a quick search for this message, it seems that it is produced by the closed-source Nvidia driver: https://devtalk.nvidia.com/default/topic/1020399/linux/vdpau-fails-decoding-mpeg2-on-gtx-660-and-384-59/2 In any case, this is unrelated to Kaffeine. If it is for a proprietary driver, you should complain to the ones that have access to their source code, e. g. to the hardware manufacturer. Another option would be to either uninstall the proprietary driver or disable its usage by libVLC. See the README.md file for some instructions about some parameters that could be passed to libVLC in order to disable the usage of vdpau and/or other broken graphics accel. -- You are receiving this mail because: You are watching all bug changes.
