[mauro2306]

Thanks wsnipex for your help.

Indeed, i stopped the X server with "sudo service lightdm stop" before doing anything else and the 2 other commands you wrote down about aticonfig has been done too.

This is the information from a non working file :

Video
ID :1
Format :AVC
Format/Info :Advanced Video Codec
Format profile :[email protected]
Format settings, CABAC :Yes
Format settings, ReFrames :11 frames
Codec ID :V_MPEG4/ISO/AVC
Duration :2h 22mn
Bit rate :18.5 Mbps
Width :1 920 pixels
Height :800 pixels
Display aspect ratio :2.40:1
Frame rate mode :Constant
Frame rate :23.976 fps
Color space :YUV
Chroma subsampling :4:2:0
Bit depth :8 bits
Scan type rogressive
Bits/(Pixel*Frame) :0.502
Stream size :18.0 GiB (90%)
Writing library :x264 core 116 r2057 0ba8a9c
Encoding settings :cabac=1 / ref=11 / deblock=1:-3:-3 / analyse=0x3:0x133 / me=umh / subme=10 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=32 / chroma_me=1 / trellis=2 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=0 / chroma_qp_offset=-2 / threads=14 / sliced_threads=0 / nr=0 / decimate=0 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=7 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=3 / weightb=1 / open_gop=0 / weightp=2 / keyint=250 / keyint_min=23 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=2pass / mbtree=0 / bitrate=18500 / ratetol=1.0 / qcomp=0.65 / qpmin=0 / qpmax=40 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / vbv_maxrate=50000 / vbv_bufsize=50000 / nal_hrd=none / ip_ratio=1.25 / pb_ratio=1.25 / aq=1:0.65
Language :English
Default :Yes
Forced :No



A Mediainfo from another file which is giving the same problems :

Video
ID :4
Format :AVC
Format/Info :Advanced Video Codec
Format profile :[email protected]
Format settings, CABAC :Yes
Format settings, ReFrames :5 frames
Muxing mode :Header stripping
Codec ID :V_MPEG4/ISO/AVC
Duration :1h 16mn
Bit rate :10.1 Mbps
Width :1 920 pixels
Height :1 080 pixels
Display aspect ratio :16:9
Frame rate mode :Constant
Frame rate :23.976 fps
Color space :YUV
Chroma subsampling :4:2:0
Bit depth :8 bits
Scan type rogressive
Bits/(Pixel*Frame) :0.204
Stream size :5.27 GiB (81%)
Writing library :x264 core 120
Encoding settings :cabac=1 / ref=5 / deblock=1:-1:-1 / analyse=0x1:0x111 / me=umh / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=24 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=6 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=10 / rc=2pass / mbtree=1 / bitrate=10132 / ratetol=1.0 / qcomp=0.60 / qpmin=3 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00
Language :English
Default :Yes
Forced :No
Color primaries :BT.709
Transfer characteristics :BT.709
Matrix coefficients :BT.709


And finally a Mediainfo of a movie which is working well :

Video
ID :4
Format :AVC
Format/Info :Advanced Video Codec
Format profile :[email protected]
Format settings, CABAC :Yes
Format settings, ReFrames :5 frames
Muxing mode :Header stripping
Codec ID :V_MPEG4/ISO/AVC
Duration :1h 16mn
Bit rate :10.1 Mbps
Width :1 920 pixels
Height :1 080 pixels
Display aspect ratio :16:9
Frame rate mode :Constant
Frame rate :23.976 fps
Color space :YUV
Chroma subsampling :4:2:0
Bit depth :8 bits
Scan type rogressive
Bits/(Pixel*Frame) :0.204
Stream size :5.27 GiB (81%)
Writing library :x264 core 120
Encoding settings :cabac=1 / ref=5 / deblock=1:-1:-1 / analyse=0x1:0x111 / me=umh / subme=7 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=24 / chroma_me=1 / trellis=1 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=12 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=6 / b_pyramid=2 / b_adapt=2 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=10 / rc=2pass / mbtree=1 / bitrate=10132 / ratetol=1.0 / qcomp=0.60 / qpmin=3 / qpmax=69 / qpstep=4 / cplxblur=20.0 / qblur=0.5 / ip_ratio=1.40 / aq=1:1.00
Language :English
Default :Yes
Forced :No
Color primaries :BT.709
Transfer characteristics :BT.709
Matrix coefficients :BT.709



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I am not an expert to analyze all the encodings settings, but i do not really see huge difference in between a non working videos and a working one ....

I can put a sample if needed, just tell me if you want that i do it or not.
Thanks again.
Mauro