~amd64, nvidia GTX 650, было nouveau, решил поставить nvidia-drivers. персобрал ядро, поставил дрова, и Плазма_5 стала не работать с сообщенем в заголовке. решения из Гугла не помогли.
~ $ dmesg | grep -i nvidia
[ 1.199893] input: HDA NVidia HDMI as /devices/pci0000:00/0000:00:02.0/0000:01:00.1/sound/card1/input10
[ 1.199985] input: HDA NVidia HDMI as /devices/pci0000:00/0000:00:02.0/0000:01:00.1/sound/card1/input11
[ 5.465059] nvidia: module license 'NVIDIA' taints kernel.
[ 5.489684] nvidia-nvlink: Nvlink Core is being initialized, major device number 249
[ 5.489736] NVRM: loading NVIDIA UNIX x86_64 Kernel Module 370.28 Thu Sep 1 19:45:04 PDT 2016
[ 6.501103] nvidia-modeset: Loading NVIDIA Kernel Mode Setting Driver for UNIX platforms 370.28 Thu Sep 1 19:18:48 PDT 2016
[ 6.512515] [drm] [nvidia-drm] [GPU ID 0x00000100] Loading driver
[ 28.344844] nvidia-modeset: Allocated GPU:0 (GPU-539b51de-5c5a-782a-8e35-c2d4b10ad3c8) @ PCI:0000:01:00.0
[ 104.269287] nvidia-modeset: Freed GPU:0 (GPU-539b51de-5c5a-782a-8e35-c2d4b10ad3c8) @ PCI:0000:01:00.0
[ 108.488612] nvidia-modeset: Allocated GPU:0 (GPU-539b51de-5c5a-782a-8e35-c2d4b10ad3c8) @ PCI:0000:01:00.0
[ 167.523714] nvidia-modeset: Freed GPU:0 (GPU-539b51de-5c5a-782a-8e35-c2d4b10ad3c8) @ PCI:0000:01:00.0