How to set up a fixed resolution?

[Yama]

But why it played other video with the same resolution?
This video worked all the time:

ffmpeg version N-50460-g393dcbf Copyright (c) 2000-2013 the FFmpeg developers
built on Mar 4 2013 17:38:17 with gcc 4.6.2 (GCC)
configuration: --enable-memalign-hack --arch=x86 --target-os=mingw32 --cross-prefix=i686-w64-mingw32- --enable-static --disable-shared --enable-zlib --disable-postproc --prefix=/home/peter/ffmpeg/build/gpl --enable-libmp3lame --enable-libx264 --enable-gpl --extra-libs='-lx264 -lpthread' --enable-runtime-cpudetect --extra-cflags=-I/home/peter/cc/include --extra-ldflags=-L/home/peter/cc/lib --pkg-config=pkg-config --disable-w32threads --enable-zlib
libavutil 52. 17.103 / 52. 17.103
libavcodec 54. 92.100 / 54. 92.100
libavformat 54. 63.102 / 54. 63.102
libavdevice 54. 3.103 / 54. 3.103
libavfilter 3. 41.100 / 3. 41.100
libswscale 2. 2.100 / 2. 2.100
libswresample 0. 17.102 / 0. 17.102
Input #0, matroska,webm, from 'E:\video2.mkv':
Metadata:
creation_time : 2010-11-10 17:59:32
Duration: 01:56:01.00, start: 0.000000, bitrate: 19876 kb/s
Stream #0:0(eng): Video: h264 (High), yuv420p, 1920x1040, SAR 1:1 DAR 24:13, 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc
Stream #0:1(ger): Audio: dts (DTS), 48000 Hz, 5.1(side), fltp, 768 kb/s (default) (forced)
Stream #0:2(eng): Audio: dts (DTS), 48000 Hz, 5.1(side), fltp, 1536 kb/s
Stream #0:3(ger): Subtitle: subrip (default) (forced)
Stream #0:4(ger): Subtitle: subrip
Stream #0:5(ger): Subtitle: subrip
Stream #0:6(eng): Subtitle: subrip
Stream #0:7(eng): Subtitle: subrip
Stream #0:8(eng): Subtitle: subrip
At least one output file must be specified

<MEZZMO>: Child process ended with code: 109, ExitCode=1


---> DB Level Info: 41, 100
---> Frame rate: 23,98
---> Aspect ratio: 24:13

[Paul]

OK - I did not know that. That suggests that your TV can play video at different resolutions, but certain videos that don't play may be encoded in such a way that your TV cannot read and play them. How many videos do you have that do not play (using the older Thomson TV device profile)?

[Yama]

The one that didn't worked was the first, maybe one or to more that I don't remember because I didn't wanted to watch them.
I have many other videos with the format 21:9, my tv won't play them without transcoding.
And some strange resolutions like 1920x1040 are sometimes played with transcoding, sometimes not.
So I can't figure out what could that be...
Well... The non-working video is working now with the new profile, didn't tried other videos yet.
Thanks!