Same problem while watching netflix in firefox + pipelight. Unchecking "unredirected fullscreen windows" solves it.
$ vainfo libva info: VA-API version 0.35.1 libva info: va_getDriverName() returns 0 libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/i965_drv_video.so libva info: Found init function __vaDriverInit_0_35 libva info: va_openDriver() returns 0 vainfo: VA-API version: 0.35 (libva 1.3.1) vainfo: Driver version: Intel i965 driver for Intel(R) Haswell Mobile - 1.3.2
Ubuntu 14.04 on system76's Galago UltraPro. Fully up-to-date.
Same problem while watching netflix in firefox + pipelight.
Unchecking "unredirected fullscreen windows" solves it.
$ vainfo x86_64- linux-gnu/ dri/i965_ drv_video. so
libva info: VA-API version 0.35.1
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/
libva info: Found init function __vaDriverInit_0_35
libva info: va_openDriver() returns 0
vainfo: VA-API version: 0.35 (libva 1.3.1)
vainfo: Driver version: Intel i965 driver for Intel(R) Haswell Mobile - 1.3.2
Ubuntu 14.04 on system76's Galago UltraPro. Fully up-to-date.