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mplayer couldn't open x11 display
http://forum.linhes.org/viewtopic.php?f=6&t=9562		 Page 1 of 1
Author:  mgargiullo [ Sun Apr 09, 2006 10:52 pm ]
Post subject:  mplayer couldn't open x11 display
Hey all,

I did a fresh install of Release 5 B7 today. Most things went well. This was the first release I was forced to install the ATI drivers to get the correct display configuration however.

I ran into a small problem. When I attempt to play a movie (mpg or divx), Myth just blinks, and returns to the movie's info screen. I logged in as mythtv, and attempted to launch mplayer with the same settings (minus fullscreen and quiet) and got the following error:

Code:
@mythtv:~$ mplayer -vo xv -ao alsa /mnt/hdd1/Walking_Tall.avi
MPlayer 1.0pre6-3.3.5 (C) 2000-2004 MPlayer Team
CPU: Advanced Micro Devices Athlon MP/XP Thoroughbred (Family: 6, Stepping: 1)
Detected cache-line size is 64 bytes
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
Compiled with runtime CPU detection - WARNING - this is not optimal!
To get best performance, recompile MPlayer with --disable-runtime-cpudetection.


Linux RTC init error in ioctl (rtc_irqp_set 1024): Permission denied
Try adding "echo 1024 > /proc/sys/dev/rtc/max-user-freq" to your system startup scripts.
Setting up LIRC support...
Playing /mnt/hdd1/Walking_Tall.avi.
AVI file format detected.
VIDEO:  [XVID]  720x480  24bpp  23.976 fps  1788.8 kbps (218.4 kbyte/s)
Clip info:
 Software: transcode-0.6.14
==========================================================================
Opening audio decoder: [liba52] AC3 decoding with liba52
Using SSE optimized IMDCT transform
AC3: 5.1 (3f+2r+lfe)  48000 Hz  448.0 kbit/s
Using MMX optimized resampler
AUDIO: 48000 Hz, 2 ch, 16 bit (0x10), ratio: 56000->192000 (448.0 kbit)
Selected audio codec: [a52] afm:liba52 (AC3-liba52)
==========================================================================
vo: couldn't open the X11 display ()!
Error opening/initializing the selected video_out (-vo) device.


Exiting... (End of file)


I've tried using every sane vo listed in mplayer

Code:
@mythtv:~$ mplayer -vo help
MPlayer 1.0pre6-3.3.5 (C) 2000-2004 MPlayer Team
CPU: Advanced Micro Devices Athlon MP/XP Thoroughbred (Family: 6, Stepping: 1)
Detected cache-line size is 64 bytes
CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 0
Compiled with runtime CPU detection - WARNING - this is not optimal!
To get best performance, recompile MPlayer with --disable-runtime-cpudetection.


Available video output drivers:
        xmga    Matrox G200/G4x0/G550 overlay in X11 window (using /dev/mga_vid)
        mga     Matrox G200/G4x0/G550 overlay (/dev/mga_vid)
        3dfx    3dfx (/dev/3dfx)
        xvmc    XVideo Motion Compensation
        xv      X11/Xv
        x11     X11 ( XImage/Shm )
        xover   General X11 driver for overlay capable video output drivers
        gl      X11 (OpenGL)
        gl2     X11 (OpenGL) - multiple textures version
        dga     DGA ( Direct Graphic Access V2.0 )
        sdl     SDL YUV/RGB/BGR renderer (SDL v1.1.7+ only!)
        fbdev   Framebuffer Device
        fbdev2  Framebuffer Device
        svga    SVGAlib
        aa      AAlib
        caca    libcaca
        vesa    VESA VBE 2.0 video output
        xvidix  X11 (VIDIX)
        cvidix  console VIDIX
        null    Null video output
        mpegpes Mpeg-PES to DVB card
        yuv4mpeg        yuv4mpeg output for mjpegtools
        png     PNG file
        jpeg    JPEG file
        tga     Targa output
        pnm     PPM/PGM/PGMYUV file
        md5sum  md5sum of each frame


I've googled without success. I can watch live TV without a problem, but not video files.

Does anyone have any ideas?
Author:  alien [ Mon Apr 10, 2006 1:05 am ]
Post subject: 
1) When you try and start an X program from the console, it won't know what display to connect to. The easiest solution is to open an xterm (ctrl-x) and try running it from there.

2) As to your original problem, I noticed that the path to mplayer changed somewhere along the way, but didn't get converted during an upgrade (I had some problems during upgrade, so that might have caused it). Check your setup and make sure that the mplayer command is correct. I had /usr/local/bin/mplayer, when it should be /bin/mplayer. I'm not 100% sure these are the correct paths, so at the command line, type "which mplayer" to find out where it is located and make sure your settings are correct.

Cheers,

Allen
Author:  mgargiullo [ Mon Apr 10, 2006 8:38 am ]
Post subject: 
The only mplayer I have is /usr/bin/mplayer.
The screen captures above are from xterm. I closed mythfrontend, and opened xterm. I tried to play the movie directly, but no good.

The strange thing is if I capture mpg video from the tuner card.
Code:
cat /dev/video0 > /tmp/test.mpg

I can play it fine with the same mplayer play command.
Code:
mplayer -vo vx -ao alsa /tmp/test.mpg

That works! This is nuts.

So close...
Author:  mgargiullo [ Tue Apr 11, 2006 3:56 pm ]
Post subject: 
Tried again:

Setting up LIRC support...
Playing /mnt/hdd1/Man_of_the_House.mpg.
MPEG-PS file format detected.
VIDEO: MPEG1 352x240 (aspect 12) 29.970 fps 1150.0 kbps (143.8 kbyte/s)
==========================================================================
Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
AUDIO: 44100 Hz, 2 ch, 16 bit (0x10), ratio: 28000->176400 (224.0 kbit)
Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG layer-2, layer-3)
==========================================================================
vo: couldn't open the X11 display (mythtv:0)!
Error opening/initializing the selected video_out (-vo) device.

Has anyone seen this?
Author:  khrusher [ Tue Apr 11, 2006 6:48 pm ]
Post subject: 
Try this

Code:
DISPLAY=<your IP Address>:0
export DISPLAY
mplayer -vo xv -ao alsa /mnt/hdd1/Walking_Tall.avi
Author:  mgargiullo [ Tue Apr 11, 2006 7:53 pm ]
Post subject: 
What script would I put that in so it works during bootup?

Could I use xine instead? Would it work as well as mplayer does (when it does)?
Author:  mgargiullo [ Tue Apr 11, 2006 8:17 pm ]
Post subject: 
Well scratch that... It still doesn't work... I've even reinstalled from scratch, and I get the same error.

I put the line export DISPLAY=127.0.0.1:0 in /etc/profile... It ends up in the mythtv users environment. I still get the couldn't open x11 display (127.0.0.1:0).

What am I missing here?

At this point I may reinstall 5a26 which worked great, but I'd rather not.
Author:  alien [ Wed Apr 12, 2006 1:20 am ]
Post subject: 
Strange... The only things I know of that cause "can't open display" errors are an incorrect DISPLAY or an incorrect userID. Are you running this as user mythtv?

If you have the correct display and the correct userID, you might try executing "xhost +" in an xterm window. This will turn off all X security checking (but you shouldn't have to do that).

Allen
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