iHD_drv_video can't coexist with egl

[johnson1]

device: intel Kaby Lake mobile processor
software: libdrm, libva, iHD_drv_video, intel media sdk, mesa, ubuntu-18.10 console
egl initialize with gbm
libva initialize with drm

1 libva decode ok when not render with egl:
libva info: VA-API version 1.2.0
libva info: va_getDriverName() returns 0
libva info: User requested driver 'iHD'
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_2
libva info: va_openDriver() returns 0
2019-02-04 16:42:31:490 VideoDecodePipe::decodeFrame status:-10!
2019-02-04 16:42:31:491 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:42:31:533 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:42:31:575 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:42:31:616 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:42:31:657 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:42:31:700 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:42:31:742 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:42:31:783 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:42:31:824 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:42:31:865 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:42:31:907 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:42:31:949 VideoDecodePipe::decodeFrame status:0!
......

2 libva decode failed when render with egl:
libva info: VA-API version 1.2.0
libva info: va_getDriverName() returns 0
libva info: User requested driver 'iHD'
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_2
libva info: va_openDriver() returns 0
2019-02-04 16:45:48:596 EglDrm::initShader end: 0
2019-02-04 16:45:48:600 VideoDecodePipe::decodeFrame status:-10!
2019-02-04 16:45:48:601 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:45:48:623 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:45:48:666 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:45:48:707 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:45:48:749 VideoDecodePipe::decodeFrame status:0!
2019-02-04 16:45:48:750 EglDrm::render l,t,r,b(-0.895833,0.814815,0.208333,-0.370370) render ok
2019-02-04 16:45:48:947 EglDrm::render l,t,r,b(-0.895833,0.814815,0.208333,-0.370370) render ok
2019-02-04 16:45:48:964 VideoDecodePipe::decodeFrame status:-17!
2019-02-04 16:45:48:968 VideoDecodePipe::decodeFrame status:-17!
2019-02-04 16:45:48:972 VideoDecodePipe::decodeFrame status:-17!
2019-02-04 16:45:48:976 VideoDecodePipe::decodeFrame status:-17!
2019-02-04 16:45:48:980 VideoDecodePipe::decodeFrame status:-17!
2019-02-04 16:45:48:998 VideoDecodePipe::decodeFrame status:-17!
......

3 failed at media_driver/linux/common/os/libdrm/mos_bufmgr.c function: do_exec2 line 3426 ret = drmIoctl(bufmgr_gem->fd,
DRM_IOCTL_I915_GEM_EXECBUFFER2,
&execbuf);
ret is -1, errno is EINVAL