Is it supposed to work on nvidia gpu? I tried the last build of libreelec on my htpc and the 3dlut has no effect (checked with colorHCFR).
Here the log:
...
00:23:20 T:139927680137344 DEBUG: LinuxRendererGL: Cleaning up GL resources
00:23:20 T:139927680137344 DEBUG: Previous line repeats 1 times.
00:23:20 T:139927680137344 DEBUG: CLinuxRendererGL:
reInit - precision of luminance 16 is 16
00:23:20 T:139927680137344 DEBUG: CMS configuration changed, reload LUT
00:23:20 T:139927680137344 DEBUG: video primaries: 1
00:23:20 T:139927680137344 DEBUG: ColorManager: CMS_MODE_3DLUT
00:23:21 T:139926043625216 WARNING: CRenderManager::Configure - timeout waiting for configure
00:23:21 T:139926043625216 ERROR: OutputPicture - failed to configure renderer
00:23:21 T:139926184118016 DEBUG: CVideoPlayer::HandleMessages - player started 2
00:23:21 T:139926184118016 DEBUG: CVideoPlayer::SetCaching - caching state 3
00:23:21 T:139926184118016 DEBUG: CDVDClock::SetSpeedAdjust - adjusted:0.000000
00:23:21 T:139926184118016 DEBUG: CVideoPlayer::SetCaching - caching state 0
00:23:21 T:139926184118016 DEBUG: CDVDClock::SetSpeedAdjust - adjusted:0.000000
00:23:21 T:139926184118016 DEBUG: VideoPlayer::Sync - Video - pts: 0.000000, cache: 50000.000000, totalcache: 100000.000000
00:23:21 T:139926184118016 WARNING: CDVDMessageQueue(audio):
ut MSGQ_NOT_INITIALIZED
00:23:21 T:139926043625216 DEBUG: CVideoPlayerVideo - CDVDMsg::GENERAL_RESYNC(-100000.000000)
00:23:22 T:139927680137344 DEBUG: LinuxRendererGL: creating 3DLUT
00:23:22 T:139927680137344 NOTICE: GL: Using VDPAU render method
00:23:22 T:139927680137344 NOTICE: GL: NPOT texture support detected
00:23:22 T:139927680137344 NOTICE: GL: Using GL_ARB_pixel_buffer_object
00:23:22 T:139927680137344 NOTICE: Using GL_TEXTURE_2D
00:23:22 T:139927680137344 DEBUG: CRenderManager::Configure - 5
...