[mythtv-users] trying to watch TV via mythtvfrontend produces blank screen

Akos Maroy darkeye at tyrell.hu
Sat Jul 19 22:09:00 EDT 2003


Ray Olszewski wrote:
> In any case, the odds are about 100 to 1 that this is an X problem, not 
> a Myth problem.

I'd be really surprised if this was an X problem. I've been using this 
very system to watch TV, DVD movies, DivX movies, play games, etc. for 
more than 1.5 years now. (and the same TV tuner card on a similar system 
for 2 year before that) But see my test results below.

> If you want help here with it, post again, but include the results of 
> the tests I've suggested above, and tell us the basics of your setup 
> (what X version, what video card and X driver, maybe more). I infer that 
> you are using a combined backend/frontent, but you should confirm that too.

some general info:

System: RedHat 9
XFree version: XFree86-4.3.0-2
video card: nVidia GeForce 3, 64MB RAM
driver: nvidia factory driver, version 4349


The xine test: the video is displayed fine, and here is the command line 
output:

# xine -V xv /tmp/1.avi
This is xine (X11 gui) - a free video player v0.9.21
(c) 2000-2003 by G. Bartsch and the xine project team.
Built with xine library 1.0.0 (1-beta12)
Found xine library version: 1.0.0 (1-beta12).
XServer Vendor: The XFree86 Project, Inc. Release: 40300000,
         Protocol Version: 11, Revision: 0,
         Available Screen(s): 1, using 0
         Depth: 16.
         XShmQueryVersion: 1.1.
-[ xiTK version 0.10.3 ]-
-[ xiTK will use XShm ]-
-[ WM type: (GnomeCompliant) (EWMH) Metacity {Metacity} ]-
Display is not using Xinerama.
main: probing <alsa> audio output plugin
load_plugins: failed to load audio output plugin <alsa>
main: probing <oss> audio output plugin
xine_interface: unknown param 10
xine_interface: unknown param 10
xine_interface: unknown param 10
xine_interface: unknown param 10
vo_scale: invalid ratio, using 4:3
vo_scale: unknown aspect ratio (0) in stream => using 4:3
This file was encoded with DivX503 Build830p


xvinfo output:

# xvinfo
X-Video Extension version 2.2
screen #0
   Adaptor #0: "video4linux"
     number of ports: 1
     port base: 105
     operations supported: PutVideo
     supported visuals:
       depth 16, visualID 0x21
       depth 16, visualID 0x23
       depth 16, visualID 0x24
       depth 16, visualID 0x25
       depth 16, visualID 0x26
       depth 16, visualID 0x27
       depth 16, visualID 0x28
       depth 16, visualID 0x29
       depth 16, visualID 0x2a
       depth 16, visualID 0x2b
     number of attributes: 11
       "XV_ENCODING" (range -1000 to 1000)
               client settable attribute
               client gettable attribute (current value is 0)
       "XV_BRIGHTNESS" (range -1000 to 1000)
               client settable attribute
               client gettable attribute (current value is 0)
       "XV_CONTRAST" (range -1000 to 1000)
               client settable attribute
               client gettable attribute (current value is -160)
       "XV_SATURATION" (range -1000 to 1000)
               client settable attribute
               client gettable attribute (current value is -20)
       "XV_HUE" (range -1000 to 1000)
               client settable attribute
               client gettable attribute (current value is 0)
       "XV_MUTE" (range 0 to 1)
               client settable attribute
               client gettable attribute (current value is 0)
       "XV_FREQ" (range 0 to 16000)
               client settable attribute
               client gettable attribute (current value is 11508)
       "XV_COLORKEY" (range 0 to 16777215)
               client settable attribute
               client gettable attribute (current value is 2110)
       "XV_AUTOPAINT_COLORKEY" (range 0 to 1)
               client settable attribute
               client gettable attribute (current value is 1)
       "XV_SET_DEFAULTS" (range 0 to 0)
               client settable attribute
       "XV_ITURBT_709" (range 0 to 1)
               client settable attribute
               client gettable attribute (current value is 0)
     number of encodings: 21
       encoding ID #0: "pal-television"
         size: 768 x 576
         rate: 0.020000
       encoding ID #1: "ntsc-television"
         size: 640 x 480
         rate: 0.016683
       encoding ID #2: "secam-television"
         size: 768 x 576
         rate: 0.020000
       encoding ID #3: "palnc-television"
         size: 640 x 576
         rate: 0.020000
       encoding ID #4: "palm-television"
         size: 640 x 576
         rate: 0.020000
       encoding ID #5: "paln-television"
         size: 768 x 576
         rate: 0.020000
       encoding ID #6: "ntscjp-television"
         size: 640 x 480
         rate: 0.016683
       encoding ID #7: "pal-composite1"
         size: 768 x 576
         rate: 0.020000
       encoding ID #8: "ntsc-composite1"
         size: 640 x 480
         rate: 0.016683
       encoding ID #9: "secam-composite1"
         size: 768 x 576
         rate: 0.020000
       encoding ID #10: "palnc-composite1"
         size: 640 x 576
         rate: 0.020000
       encoding ID #11: "palm-composite1"
         size: 640 x 576
         rate: 0.020000
       encoding ID #12: "paln-composite1"
         size: 768 x 576
         rate: 0.020000
       encoding ID #13: "ntscjp-composite1"
         size: 640 x 480
         rate: 0.016683
       encoding ID #14: "pal-svideo"
         size: 768 x 576
         rate: 0.020000
       encoding ID #15: "ntsc-svideo"
         size: 640 x 480
         rate: 0.016683
       encoding ID #16: "secam-svideo"
         size: 768 x 576
         rate: 0.020000
       encoding ID #17: "palnc-svideo"
         size: 640 x 576
         rate: 0.020000
       encoding ID #18: "palm-svideo"
         size: 640 x 576
         rate: 0.020000
       encoding ID #19: "paln-svideo"
         size: 768 x 576
         rate: 0.020000
       encoding ID #20: "ntscjp-svideo"
         size: 640 x 480
         rate: 0.016683
   Adaptor #1: "NV10 Video Overlay"
     number of ports: 1
     port base: 106
     operations supported: PutImage
     supported visuals:
       depth 16, visualID 0x21
       depth 16, visualID 0x23
       depth 16, visualID 0x24
       depth 16, visualID 0x25
       depth 16, visualID 0x26
       depth 16, visualID 0x27
       depth 16, visualID 0x28
       depth 16, visualID 0x29
       depth 16, visualID 0x2a
       depth 16, visualID 0x2b
       depth 16, visualID 0x22
       depth 16, visualID 0x2c
       depth 16, visualID 0x2d
       depth 16, visualID 0x2e
       depth 16, visualID 0x2f
       depth 16, visualID 0x30
       depth 16, visualID 0x31
       depth 16, visualID 0x32
       depth 16, visualID 0x33
       depth 16, visualID 0x34
     number of attributes: 9
       "XV_DOUBLE_BUFFER" (range 0 to 1)
               client settable attribute
               client gettable attribute (current value is 1)
       "XV_COLORKEY" (range 0 to 16777215)
               client settable attribute
               client gettable attribute (current value is 2110)
       "XV_AUTOPAINT_COLORKEY" (range 0 to 1)
               client settable attribute
               client gettable attribute (current value is 1)
       "XV_SET_DEFAULTS" (range 0 to 0)
               client settable attribute
       "XV_BRIGHTNESS" (range -512 to 511)
               client settable attribute
               client gettable attribute (current value is -2)
       "XV_CONTRAST" (range 0 to 8191)
               client settable attribute
               client gettable attribute (current value is 4094)
       "XV_SATURATION" (range 0 to 8191)
               client settable attribute
               client gettable attribute (current value is 4094)
       "XV_HUE" (range 0 to 360)
               client settable attribute
               client gettable attribute (current value is 0)
       "XV_ITURBT_709" (range 0 to 1)
               client settable attribute
               client gettable attribute (current value is 0)
     maximum XvImage size: 2046 x 2046
     Number of image formats: 4
       id: 0x32595559 (YUY2)
         guid: 59555932-0000-0010-8000-00aa00389b71
         bits per pixel: 16
         number of planes: 1
         type: YUV (packed)
       id: 0x32315659 (YV12)
         guid: 59563132-0000-0010-8000-00aa00389b71
         bits per pixel: 12
         number of planes: 3
         type: YUV (planar)
       id: 0x59565955 (UYVY)
         guid: 55595659-0000-0010-8000-00aa00389b71
         bits per pixel: 16
         number of planes: 1
         type: YUV (packed)
       id: 0x30323449 (I420)
         guid: 49343230-0000-0010-8000-00aa00389b71
         bits per pixel: 12
         number of planes: 3
         type: YUV (planar)
   Adaptor #2: "NV05 Video Blitter"
     number of ports: 32
     port base: 107
     operations supported: PutImage
     supported visuals:
       depth 16, visualID 0x21
       depth 16, visualID 0x23
       depth 16, visualID 0x24
       depth 16, visualID 0x25
       depth 16, visualID 0x26
       depth 16, visualID 0x27
       depth 16, visualID 0x28
       depth 16, visualID 0x29
       depth 16, visualID 0x2a
       depth 16, visualID 0x2b
       depth 16, visualID 0x22
       depth 16, visualID 0x2c
       depth 16, visualID 0x2d
       depth 16, visualID 0x2e
       depth 16, visualID 0x2f
       depth 16, visualID 0x30
       depth 16, visualID 0x31
       depth 16, visualID 0x32
       depth 16, visualID 0x33
       depth 16, visualID 0x34
     no port attributes defined
     maximum XvImage size: 2046 x 2046
     Number of image formats: 5
       id: 0x32595559 (YUY2)
         guid: 59555932-0000-0010-8000-00aa00389b71
         bits per pixel: 16
         number of planes: 1
         type: YUV (packed)
       id: 0x32315659 (YV12)
         guid: 59563132-0000-0010-8000-00aa00389b71
         bits per pixel: 12
         number of planes: 3
         type: YUV (planar)
       id: 0x59565955 (UYVY)
         guid: 55595659-0000-0010-8000-00aa00389b71
         bits per pixel: 16
         number of planes: 1
         type: YUV (packed)
       id: 0x30323449 (I420)
         guid: 49343230-0000-0010-8000-00aa00389b71
         bits per pixel: 12
         number of planes: 3
         type: YUV (planar)
       id: 0x3
         guid: 03000000-0000-0010-8000-00aa00389b71
         bits per pixel: 32
         number of planes: 1
         type: RGB (packed)
         depth: 24
         red, green, blue masks: 0xff0000, 0xff00, 0xff


xdpyinfo output:

# xdpyinfo
name of display:    :0.0
version number:    11.0
vendor string:    The XFree86 Project, Inc
vendor release number:    40300000
XFree86 version: 4.3.0
maximum request size:  4194300 bytes
motion buffer size:  256
bitmap unit, bit order, padding:    32, LSBFirst, 32
image byte order:    LSBFirst
number of supported pixmap formats:    7
supported pixmap formats:
     depth 1, bits_per_pixel 1, scanline_pad 32
     depth 4, bits_per_pixel 8, scanline_pad 32
     depth 8, bits_per_pixel 8, scanline_pad 32
     depth 15, bits_per_pixel 16, scanline_pad 32
     depth 16, bits_per_pixel 16, scanline_pad 32
     depth 24, bits_per_pixel 32, scanline_pad 32
     depth 32, bits_per_pixel 32, scanline_pad 32
keycode range:    minimum 8, maximum 255
focus:  window 0x2600004, revert to Parent
number of extensions:    31
     BIG-REQUESTS
     DOUBLE-BUFFER
     DPMS
     Extended-Visual-Information
     FontCache
     GLX
     LBX
     MIT-SCREEN-SAVER
     MIT-SHM
     MIT-SUNDRY-NONSTANDARD
     NV-CONTROL
     NV-GLX
     NVIDIA-GLX
     RANDR
     RECORD
     RENDER
     SECURITY
     SHAPE
     SYNC
     TOG-CUP
     X-Resource
     XC-APPGROUP
     XC-MISC
     XFree86-Bigfont
     XFree86-DGA
     XFree86-Misc
     XFree86-VidModeExtension
     XInputExtension
     XKEYBOARD
     XTEST
     XVideo
default screen number:    0
number of screens:    1

screen #0:
   dimensions:    1600x1200 pixels (452x331 millimeters)
   resolution:    90x92 dots per inch
   depths (7):    16, 1, 4, 8, 15, 24, 32
   root window id:    0x8d
   depth of root window:    16 planes
   number of colormaps:    minimum 1, maximum 1
   default colormap:    0x20
   default number of colormap cells:    64
   preallocated pixels:    black 0, white 65535
   options:    backing-store NO, save-unders NO
   largest cursor:    64x64
   current input event mask:    0xfa203f
     KeyPressMask             KeyReleaseMask           ButtonPressMask
     ButtonReleaseMask        EnterWindowMask          LeaveWindowMask
     ButtonMotionMask         StructureNotifyMask 
SubstructureNotifyMask
     SubstructureRedirectMask FocusChangeMask          PropertyChangeMask
     ColormapChangeMask
   number of visuals:    20
   default visual id:  0x21
   visual:
     visual id:    0x21
     class:    TrueColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x22
     class:    DirectColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x23
     class:    TrueColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x24
     class:    TrueColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x25
     class:    TrueColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x26
     class:    TrueColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x27
     class:    TrueColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x28
     class:    TrueColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x29
     class:    TrueColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x2a
     class:    TrueColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x2b
     class:    TrueColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x2c
     class:    DirectColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x2d
     class:    DirectColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x2e
     class:    DirectColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x2f
     class:    DirectColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x30
     class:    DirectColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x31
     class:    DirectColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x32
     class:    DirectColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x33
     class:    DirectColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits
   visual:
     visual id:    0x34
     class:    DirectColor
     depth:    16 planes
     available colormap entries:    64 per subfield
     red, green, blue masks:    0xf800, 0x7e0, 0x1f
     significant bits in color specification:    8 bits



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