Need help w/ overlay mode

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I can run xawtv (and zapping) grabber mode, but I would much prefer overlay 
(less overhead). When I try overlay I get a wierd cyan screen with some green 
square looking things - sometimes there is part of a scene, but nothing 
moving. I've tried two different cards (one ati tv wonder and an older 
hauppaugge card - both worked fine in overlay mode under Mandrake 9.0). I 
have a GeForce4 MX 440 card and I am using the nvidia-glx-1.0.4191 and 
 nvidia-kernel-1.0.4191 versions of the nvidia driver - I have tried using the 
nv driver as well to no avail. 
 
 this is the Module section in my XF86Config 
 
 Section "Module" 
 
 # This loads the DBE extension module. 
 
 Load "dbe" # Double buffer extension 
 Load "v4l" 
 Load "extmod" 
 
 # This loads the Type1 and FreeType font modules 
 Load "type1" 
 Load "freetype" 
 
 # This loads the GLX module 
 Load "glx" 
 Load "dri" 
 
 EndSection 
 
 Section "DRI" 
 Mode 0666 
 EndSection 
 
 this is the output of xawtv -hwscan 
 
 This is xawtv-3.83, running on Linux/i686 (2.4.20-win4lin-r1) 
 looking for available devices 
 port 103-103 [ -xvport 103 ] 
 type : Xvideo, video overlay 
 name : video4linux 
 
 port 104-104 
 type : Xvideo, image scaler 
 name : NV17 Video Overlay 
 
 port 105-136 
 type : Xvideo, image scaler 
 name : NV05 Video Blitter 
 
 /dev/v4l/video0: OK [ -device /dev/v4l/video0 ] 
 type : v4l 
 name : BT878(Hauppauge (bt878)) 
 flags: overlay capture tuner 
 
 and my xvinfo output 
 
 X-Video Extension version 2.2 
 screen #0 
 Adaptor #0: "video4linux" 
 number of ports: 1 
 port base: 103 
 operations supported: PutVideo 
 supported visuals: 
 depth 24, visualID 0x21 
 depth 24, visualID 0x23 
 depth 24, visualID 0x24 
 depth 24, visualID 0x25 
 depth 24, visualID 0x26 
 depth 24, visualID 0x27 
 depth 24, visualID 0x28 
 depth 24, visualID 0x29 
 depth 24, visualID 0x2a 
 depth 24, visualID 0x2b 
 depth 24, visualID 0x2c 
 depth 24, visualID 0x2d 
 number of attributes: 12 
 "XV_ENCODING" (range -1000 to 1000) 
 client settable attribute 
 client gettable attribute (current value is 1) 
 "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 -157) 
 "XV_SATURATION" (range -1000 to 1000) 
 client settable attribute 
 client gettable attribute (current value is -8) 
 "XV_HUE" (range -1000 to 1000) 
 client settable attribute 
 client gettable attribute (current value is 0) 
 "XV_VOLUME" (range -1000 to 1000) 
 client settable attribute 
 client gettable attribute (current value is 999) 
 "XV_MUTE" (range 0 to 1) 
 client settable attribute 
 client gettable attribute (current value is 1) 
 "XV_FREQ" (range 0 to 16000) 
 client settable attribute 
 client gettable attribute (current value is 3092) 
 "XV_COLORKEY" (range 0 to 16777215) 
 client settable attribute 
 client gettable attribute (current value is 66046) 
 "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: 28 
 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 
 encoding ID #21: "pal-composite3" 
 size: 768 x 576 
 rate: 0.020000 
 encoding ID #22: "ntsc-composite3" 
 size: 640 x 480 
 rate: 0.016683 
 encoding ID #23: "secam-composite3" 
 size: 768 x 576 
 rate: 0.020000 
 encoding ID #24: "palnc-composite3" 
 size: 640 x 576 
 rate: 0.020000 
 encoding ID #25: "palm-composite3" 
 size: 640 x 576 
 rate: 0.020000 
 encoding ID #26: "paln-composite3" 
 size: 768 x 576 
 rate: 0.020000 
 encoding ID #27: "ntscjp-composite3" 
 size: 640 x 480 
 rate: 0.016683 
 Adaptor #1: "NV17 Video Overlay" 
 number of ports: 1 
 port base: 104 
 operations supported: PutImage 
 supported visuals: 
 depth 24, visualID 0x21 
 depth 24, visualID 0x23 
 depth 24, visualID 0x24 
 depth 24, visualID 0x25 
 depth 24, visualID 0x26 
 depth 24, visualID 0x27 
 depth 24, visualID 0x28 
 depth 24, visualID 0x29 
 depth 24, visualID 0x2a 
 depth 24, visualID 0x2b 
 depth 24, visualID 0x2c 
 depth 24, visualID 0x2d 
 depth 24, visualID 0x22 
 depth 24, visualID 0x2e 
 depth 24, visualID 0x2f 
 depth 24, visualID 0x30 
 depth 24, visualID 0x31 
 depth 24, visualID 0x32 
 depth 24, visualID 0x33 
 depth 24, visualID 0x34 
 depth 24, visualID 0x35 
 depth 24, visualID 0x36 
 depth 24, visualID 0x37 
 depth 24, visualID 0x38 
 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 66046) 
 "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 0) 
 "XV_CONTRAST" (range 0 to 8191) 
 client settable attribute 
 client gettable attribute (current value is 4096) 
 "XV_SATURATION" (range 0 to 8191) 
 client settable attribute 
 client gettable attribute (current value is 4096) 
 "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: 105 
 operations supported: PutImage 
 supported visuals: 
 depth 24, visualID 0x21 
 depth 24, visualID 0x23 
 depth 24, visualID 0x24 
 depth 24, visualID 0x25 
 depth 24, visualID 0x26 
 depth 24, visualID 0x27 
 depth 24, visualID 0x28 
 depth 24, visualID 0x29 
 depth 24, visualID 0x2a 
 depth 24, visualID 0x2b 
 depth 24, visualID 0x2c 
 depth 24, visualID 0x2d 
 depth 24, visualID 0x22 
 depth 24, visualID 0x2e 
 depth 24, visualID 0x2f 
 depth 24, visualID 0x30 
 depth 24, visualID 0x31 
 depth 24, visualID 0x32 
 depth 24, visualID 0x33 
 depth 24, visualID 0x34 
 depth 24, visualID 0x35 
 depth 24, visualID 0x36 
 depth 24, visualID 0x37 
 depth 24, visualID 0x38 
 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: 0 
 red, green, blue masks: 0xff0000, 0xff00, 0xff 
 
 Thanks 
 CP





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