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kpdillon
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Posted: Mon Nov 27, 2006 1:44 pm |
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Joined: Mon Nov 06, 2006 1:10 pm
Posts: 17
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I will try this again tonight but I am not that optimistic that this is going to fix my issue. Do you think this would also address the crisp/brightness of the picture? What is the mode supposed to be for a normal current analog TV? 640x480 or 800x600? What is the color default color depth supposed to be? The output quality is the same on two separate TV's. Given that I wouldn't think I have to adjust to the TV, rather it should be generic for a standard TV.
According to my log, (II) NVIDIA(0): Setting mode "800x600" I am set to 800x600. Here is what my complete XF86Config-4 file currently looks like (copied from the sample file).
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 1.0 (buildmeister@builder3) Wed Nov 1 19:47:17 PST 2006
# Auto-generated by KNOPPIX mkxf86config
Section "ServerLayout"
# PS/2 Mouse using /dev/input/mice in Kernel 2.6
# Serial Mouse not detected
Identifier "XFree86 Configured"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "USB Mouse" "CorePointer"
EndSection
Section "Files"
# Additional fonts: Locale, Gimp, TTF...
# FontPath "/usr/X11R6/lib/X11/fonts/latin2/75dpi"
# FontPath "/usr/X11R6/lib/X11/fonts/latin2/100dpi"
# True type and type1 fonts are also handled via xftlib, see /etc/X11/XftConfig!
RgbPath "/usr/X11R6/lib/X11/rgb"
ModulePath "/usr/X11R6/lib/modules"
FontPath "/usr/X11R6/lib/X11/fonts/misc:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/misc"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/75dpi"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi:unscaled"
FontPath "/usr/X11R6/lib/X11/fonts/100dpi"
FontPath "/usr/X11R6/lib/X11/fonts/Speedo"
FontPath "/usr/X11R6/lib/X11/fonts/PEX"
FontPath "/usr/X11R6/lib/X11/fonts/cyrillic"
FontPath "/usr/X11R6/lib/X11/fonts/Type1"
FontPath "/usr/share/fonts/ttf/western"
FontPath "/usr/share/fonts/ttf/decoratives"
FontPath "/usr/share/fonts/truetype"
FontPath "/usr/share/fonts/truetype/openoffice"
FontPath "/usr/share/fonts/truetype/ttf-bitstream-vera"
FontPath "/usr/share/fonts/latex-ttf-fonts"
FontPath "/usr/X11R6/lib/X11/fonts/defoma/CID"
FontPath "/usr/X11R6/lib/X11/fonts/defoma/TrueType"
EndSection
Section "Module"
# Load "GLcore"
Load "ddc" # ddc probing of monitor
Load "dbe"
# Load "dri"
Load "extmod"
Load "glx"
Load "bitmap" # bitmap-fonts
Load "speedo"
Load "type1"
Load "freetype"
Load "record"
EndSection
Section "ServerFlags"
Option "AllowMouseOpenFail" "true"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "keyboard"
Option "CoreKeyboard"
Option "XkbRules" "xfree86"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
EndSection
Section "InputDevice"
Identifier "Serial Mouse"
Driver "mouse"
Option "Protocol" "Microsoft"
Option "Device" "/dev/ttyS0"
Option "Emulate3Buttons" "true"
Option "Emulate3Timeout" "70"
Option "SendCoreEvents" "true"
EndSection
Section "InputDevice"
Identifier "PS/2 Mouse"
Driver "mouse"
Option "Protocol" "auto"
Option "ZAxisMapping" "4 5"
Option "Device" "/dev/psaux"
Option "Emulate3Buttons" "true"
Option "Emulate3Timeout" "70"
Option "SendCoreEvents" "true"
EndSection
Section "InputDevice"
Identifier "USB Mouse"
Driver "mouse"
Option "Device" "/dev/input/mice"
Option "SendCoreEvents" "true"
Option "Protocol" "IMPS/2"
Option "ZAxisMapping" "4 5"
Option "Buttons" "5"
EndSection
Section "Monitor"
Option "TVOverScan" "0.8"
# Warning: This may fry old Monitors
# Very conservative. May flicker.
# VertRefresh 50.0 - 62.0 # Extreme conservative. Will flicker. TFT default.
# Default modes distilled from
# "VESA and Industry Standards and Guide for Computer Display Monitor
# Timing", version 1.0, revision 0.8, adopted September 17, 1998.
# $XFree86: xc/programs/Xserver/hw/xfree86/etc/vesamodes,v 1.4 1999/11/18 16:52:17 tsi Exp $
# 640x350 @ 85Hz (VESA) hsync: 37.9kHz
Identifier "Monitor0"
HorizSync 28.0 - 96.0
VertRefresh 50.0 - 75.0
ModeLine "640x350" 31.5 640 672 736 832 350 382 385 445 +hsync -vsync
ModeLine "640x400" 31.5 640 672 736 832 400 401 404 445 -hsync +vsync
ModeLine "720x400" 35.5 720 756 828 936 400 401 404 446 -hsync +vsync
ModeLine "640x480" 25.2 640 656 752 800 480 490 492 525 -hsync -vsync
ModeLine "640x480" 31.5 640 664 704 832 480 489 491 520 -hsync -vsync
ModeLine "640x480" 31.5 640 656 720 840 480 481 484 500 -hsync -vsync
ModeLine "640x480" 36.0 640 696 752 832 480 481 484 509 -hsync -vsync
ModeLine "800x600" 36.0 800 824 896 1024 600 601 603 625 +hsync +vsync
ModeLine "800x600" 40.0 800 840 968 1056 600 601 605 628 +hsync +vsync
ModeLine "800x600" 50.0 800 856 976 1040 600 637 643 666 +hsync +vsync
ModeLine "800x600" 49.5 800 816 896 1056 600 601 604 625 +hsync +vsync
ModeLine "800x600" 56.3 800 832 896 1048 600 601 604 631 +hsync +vsync
ModeLine "1024x768" 44.9 1024 1032 1208 1264 768 768 776 817 +hsync +vsync interlace
ModeLine "1024x768" 65.0 1024 1048 1184 1344 768 771 777 806 -hsync -vsync
ModeLine "1024x768" 75.0 1024 1048 1184 1328 768 771 777 806 -hsync -vsync
ModeLine "1024x768" 78.8 1024 1040 1136 1312 768 769 772 800 +hsync +vsync
ModeLine "1024x768" 94.5 1024 1072 1168 1376 768 769 772 808 +hsync +vsync
ModeLine "1152x864" 108.0 1152 1216 1344 1600 864 865 868 900 +hsync +vsync
ModeLine "1280x960" 108.0 1280 1376 1488 1800 960 961 964 1000 +hsync +vsync
ModeLine "1280x960" 148.5 1280 1344 1504 1728 960 961 964 1011 +hsync +vsync
ModeLine "1280x1024" 108.0 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
ModeLine "1280x1024" 135.0 1280 1296 1440 1688 1024 1025 1028 1066 +hsync +vsync
ModeLine "1280x1024" 157.5 1280 1344 1504 1728 1024 1025 1028 1072 +hsync +vsync
ModeLine "1600x1200" 162.0 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
ModeLine "1600x1200" 175.5 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
ModeLine "1600x1200" 189.0 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
ModeLine "1600x1200" 202.5 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
ModeLine "1600x1200" 229.5 1600 1664 1856 2160 1200 1201 1204 1250 +hsync +vsync
ModeLine "1792x1344" 204.8 1792 1920 2120 2448 1344 1345 1348 1394 -hsync +vsync
ModeLine "1792x1344" 261.0 1792 1888 2104 2456 1344 1345 1348 1417 -hsync +vsync
ModeLine "1856x1392" 218.3 1856 1952 2176 2528 1392 1393 1396 1439 -hsync +vsync
ModeLine "1856x1392" 288.0 1856 1984 2208 2560 1392 1393 1396 1500 -hsync +vsync
ModeLine "1920x1440" 234.0 1920 2048 2256 2600 1440 1441 1444 1500 -hsync +vsync
ModeLine "1920x1440" 297.0 1920 2064 2288 2640 1440 1441 1444 1500 -hsync +vsync
ModeLine "1800x1440" 230.0 1800 1896 2088 2392 1440 1441 1444 1490 +hsync +vsync
ModeLine "1800x1440" 250.0 1800 1896 2088 2392 1440 1441 1444 1490 +hsync +vsync
ModeLine "640x480" 43.2 640 680 744 848 480 481 484 509 -hsync +vsync
ModeLine "768x576" 35.0 768 792 872 976 576 577 580 597 -hsync +vsync
ModeLine "768x576" 42.9 768 800 880 992 576 577 580 601 -hsync +vsync
ModeLine "768x576" 45.5 768 808 888 1008 576 577 580 602 -hsync +vsync
ModeLine "768x576" 51.8 768 808 888 1008 576 577 580 605 -hsync +vsync
ModeLine "768x576" 62.6 768 816 896 1024 576 577 580 611 -hsync +vsync
ModeLine "800x600" 68.2 800 848 936 1072 600 601 604 636 -hsync +vsync
ModeLine "1024x768" 113.3 1024 1096 1208 1392 768 769 772 814 -hsync +vsync
ModeLine "1152x864" 81.6 1152 1216 1336 1520 864 865 868 895 -hsync +vsync
ModeLine "1152x864" 119.7 1152 1224 1352 1552 864 865 868 907 -hsync +vsync
ModeLine "1152x864" 143.5 1152 1232 1360 1568 864 865 868 915 -hsync +vsync
ModeLine "1280x960" 124.5 1280 1368 1504 1728 960 961 964 1001 -hsync +vsync
ModeLine "1280x960" 129.9 1280 1368 1504 1728 960 961 964 1002 -hsync +vsync
ModeLine "1280x960" 179.0 1280 1376 1520 1760 960 961 964 1017 -hsync +vsync
ModeLine "1280x1024" 191.0 1280 1376 1520 1760 1024 1025 1028 1085 -hsync +vsync
ModeLine "1400x1050" 122.6 1400 1488 1640 1880 1050 1051 1054 1087 -hsync +vsync
ModeLine "1400x1050" 149.3 1400 1496 1648 1896 1050 1051 1054 1094 -hsync +vsync
ModeLine "1400x1050" 155.8 1400 1496 1648 1896 1050 1051 1054 1096 -hsync +vsync
ModeLine "1400x1050" 179.3 1400 1504 1656 1912 1050 1051 1054 1103 -hsync +vsync
ModeLine "1400x1050" 214.4 1400 1512 1664 1928 1050 1051 1054 1112 -hsync +vsync
ModeLine "1600x1200" 280.6 1600 1728 1904 2208 1200 1201 1204 1271 -hsync +vsync
ModeLine "1920x1200" 193.2 1920 2048 2256 2592 1200 1201 1204 1242 +hsync -hsync
ModeLine "NTSCspec-59.94i" 14.3 768 784 848 910 483 484 492 525 interlace
ModeLine "NTSCspec-59.94p" 28.6 768 784 848 910 483 484 492 525
ModeLine "NTSC-DVD-59.94i" 13.5 720 736 800 858 480 484 492 525 interlace
ModeLine "NTSC-DVD-60i" 13.5 720 736 800 858 480 484 492 525 interlace
ModeLine "NTSC-DVD-59.94p" 27.0 720 736 800 858 480 484 492 525
ModeLine "NTSC-DVD-60p" 27.0 720 736 800 858 480 484 492 525
ModeLine "NTSC-DVD-71.93p" 32.4 720 736 800 858 480 484 492 525
ModeLine "NTSC-DVD-72p" 32.4 720 736 800 858 480 484 492 525
ModeLine "NTSC-DVD-119.88p" 54.0 720 736 800 858 480 484 492 525
ModeLine "NTSC-DVD-120p" 54.1 720 736 800 858 480 484 492 525
ModeLine "DILA-47.95p" 91.5 1360 1464 1608 1800 1024 1026 1028 1060
ModeLine "DILA-48p" 91.6 1360 1464 1608 1800 1024 1026 1028 1060
ModeLine "DILA-50p" 95.4 1360 1464 1608 1800 1024 1026 1028 1060
ModeLine "DILA-59.94p" 114.4 1360 1464 1608 1800 1024 1026 1028 1060
ModeLine "DILA-60p" 114.5 1360 1464 1608 1800 1024 1026 1028 1060
ModeLine "DILA-71.93p" 137.2 1360 1464 1608 1800 1024 1026 1028 1060
ModeLine "DILA-72p" 137.4 1360 1464 1608 1800 1024 1026 1028 1060
ModeLine "DILA-MarkR-71.997" 139.2 1360 1464 1608 1824 1024 1026 1028 1060
ModeLine "ATSC-480-59.94i" 12.0 640 664 736 760 480 484 492 525 interlace
ModeLine "ATSC-480-60i" 12.0 640 664 736 760 480 484 492 525 interlace
ModeLine "ATSC-480-59.94p" 23.9 640 664 736 760 480 484 492 525
ModeLine "ATSC-480-60p" 23.9 640 664 736 760 480 484 492 525
ModeLine "ATSC-480a-59.94i" 12.0 640 664 736 760 480 484 492 525 interlace
ModeLine "ATSC-480a-60i" 12.0 640 664 736 760 480 484 492 525 interlace
ModeLine "ATSC-480a-59.94p" 23.9 640 664 736 760 480 484 492 525
ModeLine "ATSC-480a-60p" 23.9 640 664 736 760 480 484 492 525
ModeLine "ATSC-720-59.94p" 74.2 1280 1320 1376 1650 720 722 728 750
ModeLine "ATSC-720-60p" 74.2 1280 1320 1376 1650 720 722 728 750
ModeLine "ATSC-1080-59.94i" 74.2 1920 1960 2016 2200 1080 1082 1088 1125 interlace
ModeLine "ATSC-1080-60i" 74.2 1920 1960 2016 2200 1080 1082 1088 1125 interlace
ModeLine "ATSC-1080-59.94p" 148.4 1920 1960 2016 2200 1080 1082 1088 1125
ModeLine "ATSC-1080-60p" 148.5 1920 1960 2016 2200 1080 1082 1088 1125
ModeLine "ATSC-480-71.93p" 28.7 640 664 736 760 480 484 492 525
ModeLine "ATSC-480-72p" 28.7 640 664 736 760 480 484 492 525
ModeLine "ATSC-480-119.88p" 47.8 640 664 736 760 480 484 492 525
ModeLine "ATSC-480-120p" 47.9 640 664 736 760 480 484 492 525
ModeLine "ATSC-720-71.93p" 89.0 1280 1296 1360 1650 720 722 728 750
ModeLine "ATSC-720-72p" 89.1 1280 1296 1360 1650 720 722 728 750
ModeLine "ATSC-720-119.88p" 148.4 1280 1296 1360 1650 720 722 728 750
ModeLine "ATSC-720-120p" 148.5 1280 1296 1360 1650 720 722 728 750
ModeLine "ATSC-1080-71.93p" 178.0 1920 1960 2016 2200 1080 1082 1088 1125
ModeLine "ATSC-1080-72p" 178.2 1920 1960 2016 2200 1080 1082 1088 1125
ModeLine "NTSC-59.94i" 14.3 768 808 864 912 483 485 491 525 interlace
ModeLine "NTSC-59.94p" 28.7 768 808 864 912 483 485 491 525
ModeLine "NTSC-DVD-59.94i" 13.5 720 760 816 856 480 482 488 525 interlace
ModeLine "NTSC-DVD-60i" 13.5 720 760 816 856 480 482 488 525 interlace
ModeLine "NTSC-DVD-59.94p" 26.9 720 760 816 856 480 482 488 525
ModeLine "NTSC-DVD-60p" 27.0 720 760 816 856 480 482 488 525
ModeLine "NTSC-DVD-71.93p" 32.3 720 760 816 856 480 482 488 525
ModeLine "NTSC-DVD-72p" 32.4 720 760 816 856 480 482 488 525
ModeLine "ATSC-480-59.94p" 23.9 640 664 736 760 480 482 488 525
ModeLine "ATSC-480-60p" 23.9 640 664 736 760 480 482 488 525
ModeLine "ATSC-480-71.93p" 28.7 640 664 736 760 480 482 488 525
ModeLine "ATSC-480-72p" 28.7 640 664 736 760 480 482 488 525
ModeLine "ATSC-720-59.94p" 74.1 1280 1320 1376 1648 720 722 728 750
ModeLine "ATSC-720-60p" 74.2 1280 1320 1376 1648 720 722 728 750
ModeLine "ATSC-720-71.93p" 88.9 1280 1320 1376 1648 720 722 728 750
ModeLine "ATSC-720-72p" 89.0 1280 1320 1376 1648 720 722 728 750
ModeLine "ATSC-1080-59.94i" 74.2 1920 1960 2016 2200 1080 1082 1088 1125 interlace
ModeLine "ATSC-1080-60i" 74.2 1920 1960 2016 2200 1080 1082 1088 1125 interlace
ModeLine "ATSC-1080-59.94p" 148.4 1920 1960 2016 2200 1080 1082 1088 1125
ModeLine "ATSC-1080-60p" 148.5 1920 1960 2016 2200 1080 1082 1088 1125
ModeLine "ATSC-1080-71.93p" 178.0 1920 1960 2016 2200 1080 1082 1088 1125
ModeLine "ATSC-1080-72p" 178.2 1920 1960 2016 2200 1080 1082 1088 1125
ModeLine "702x576@25i" 13.5 702 722 785 864 576 581 586 625 -hsync -vsync interlace
ModeLine "704x576@25i" 13.5 704 723 786 864 576 581 586 625 -hsync -vsync interlace
ModeLine "720x576@25i" 13.5 720 732 795 864 576 581 586 625 -hsync -vsync interlace
ModeLine "768x576@25i" 14.8 768 789 858 944 576 581 586 625 -hsync -vsync interlace
ModeLine "768x576@50" 29.5 768 789 858 944 576 581 586 625 -hsync -vsync
ModeLine "720x576@60" 32.7 720 744 816 912 576 577 580 597
ModeLine "720x576i" 13.9 720 744 808 888 576 581 586 625 -hsync -vsync interlace
ModeLine "720x576" 42.6 720 760 832 944 576 577 580 602 -hsync -vsync
Option "DPMS" "true"
# HorizSync 28.0 - 78.0 # Warning: This may fry very old Monitors
EndSection
Section "Device"
### Available Driver options are:-
# sw_cursor is needed for some ati and radeon cards
#Option "sw_cursor"
#Option "hw_cursor"
#Option "NoAccel"
#Option "ShowCache"
#Option "ShadowFB"
#Option "UseFBDev"
#Option "Rotate"
# The following line is auto-generated by KNOPPIX mkxf86config
# BusID "PCI:1:0:0"
Identifier "Card0"
Driver "nvidia"
VendorName "All"
BoardName "All"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 4
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 8
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 15
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 16
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 24
Modes "800x600" "640x480"
EndSubSection
SubSection "Display"
Depth 32
Modes "800x600" "640x480"
EndSubSection
EndSection
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ceenvee703
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Posted: Mon Nov 27, 2006 2:04 pm |
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Joined: Fri Apr 02, 2004 10:08 am
Posts: 1637
Location:
Virginia, USA
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The output from your video card's S-video port is fixed at the broadcast-standard of 720x480 for standard-definition TV. (Anything else and your TV would not understand it)
So if you set XF86Config-4 to 640x480, it will take that size desktop and scale it to 720x480 for TV. If you use 800x600, it scales that to 720x480. My guess is that this is not the problem (and now that you've posted your entire XF86Config-4 file, I can see that you have all the appropriate bit depths... you don't have to delete the others as it'll use the one you selected (24)).
Did you try running the nvidia-settings program that someone suggested on page 1 of this thread? That gives you some options (I think) for adjusting your picture quality.
Here is some info on nvidia-settings program and some generic info on setting up TV out:
http://www.knoppmythwiki.org/index.php?page=NvidiaSetup
http://www.knoppmythwiki.org/index.php? ... Transition
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kpdillon
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Posted: Mon Nov 27, 2006 3:00 pm |
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Joined: Mon Nov 06, 2006 1:10 pm
Posts: 17
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Thanks for the follow-up. I'll check out those two links. I'm wondering if I should RMA this biostar Geforce 6200 video card or if my expecations are too high. I would expect the quality to be equal to TIVO. I have tried with the Nvidia card settings. They don't seem to help much. I'll try some more.
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ceenvee703
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Posted: Mon Nov 27, 2006 5:10 pm |
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Joined: Fri Apr 02, 2004 10:08 am
Posts: 1637
Location:
Virginia, USA
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kpdillon wrote: I would expect the quality to be equal to TIVO.
As I mentioned before, there are things that TiVo can do that a video card's tv-out can't (namely, preserve interlacing of MPEG2 recordings). That doesn't sound like the issue you're having, but it is a difference where TiVo has an advantage. This is why people use the Hauppauge PVR-350's MPEG2 encoder and its video-out... it preserves interlacing.
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psicard
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Posted: Mon Nov 27, 2006 7:19 pm |
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Joined: Mon Nov 28, 2005 10:44 am
Posts: 137
Location:
Austin, TX
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kpdillon
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Posted: Mon Nov 27, 2006 9:01 pm |
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Joined: Mon Nov 06, 2006 1:10 pm
Posts: 17
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ceenvee703 wrote: kpdillon wrote: I would expect the quality to be equal to TIVO. As I mentioned before, there are things that TiVo can do that a video card's tv-out can't (namely, preserve interlacing of MPEG2 recordings). That doesn't sound like the issue you're having, but it is a difference where TiVo has an advantage. This is why people use the Hauppauge PVR-350's MPEG2 encoder and its video-out... it preserves interlacing.
OK, so I found that the darkness was due to the fact that one of my SVIDEO inputs (in the front of the TV) displays the signal darker. It's a 10 year old TV but that was painful. In terms of interlacing, I think you are on to my problem. I am assuming with interlacing the TV picture seems more real and less like an mpeg video playing on a computer screen. So, should I RMA the 150 cards and try to buy a 350 and send the video out through that? Can I still buy a 350? I have heard that a sending the video out of a 350 will cause chopiness.
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EvilTwin
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Posted: Tue Nov 28, 2006 12:38 am |
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Joined: Tue Nov 08, 2005 7:31 am
Posts: 195
Location:
Secret Lair
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ceenvee703
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Posted: Tue Nov 28, 2006 3:58 am |
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Joined: Fri Apr 02, 2004 10:08 am
Posts: 1637
Location:
Virginia, USA
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If you haven't turned on Bob 2x deinterlacing yet, do that first (it's buried in a Settings menu, something like Settings->TV->Playback).
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ryanpatterson
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Posted: Tue Nov 28, 2006 8:26 am |
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Joined: Fri Aug 26, 2005 9:54 pm
Posts: 617
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kpdillon wrote: Can I still buy a 350? I have heard that a sending the video out of a 350 will cause chopiness.
The pvr-350's video out certainly wont cause choppyness. It is the cleanest composite/s-video output you can get. But there is no support for OpenGL. And installing/configuring the driver for X can be difficult.
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kpdillon
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Posted: Tue Nov 28, 2006 8:42 am |
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Joined: Mon Nov 06, 2006 1:10 pm
Posts: 17
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I have tried Bob interlacing, doesn't seem to help much. Because we've been living with Tivo for so long it would be very difficult to downgrade the TV viewing experience for just more functionality so it seems like a PVR-350 might be the way to go. The only concern I have over this is if this will work smoothly when the MythBox is recording a TV show. I guess most users who are building Myth Boxes must have HD tv's because I can't believe the majority of folks would find the quality acceptable if it's not at least as good as what Tivo offers.
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ceenvee703
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Posted: Tue Nov 28, 2006 9:36 am |
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Joined: Fri Apr 02, 2004 10:08 am
Posts: 1637
Location:
Virginia, USA
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kpdillon wrote: I can't believe the majority of folks would find the quality acceptable if it's not at least as good as what Tivo offers.
The problem is trying to determine "quality" of a visual image by typing text messages to each other.
I really have no way of knowing what you're seeing without standing over your shoulder, particularly since initially it sounded like more of a compression issue, then it turned into a brightness/contrast/bitdepth issue, and now it's become an interlacing issue.
Plus there are some things some people can see and some things some people can't. I went to a friend's house last night and he showed me a Saturday Night Live HD recording he made with a Mac mini/Miglia HD tuner setup. The recording was fine but the deinterlacing on playback just wasn't right. I could see it, he couldn't.
I would try one other thing before you go out and purchase a PVR-350 (assuming you followed the link that EvilTwin posted to the wiki about adjusting image quality and that you've adjusted your recording profiles). Record something with your 150 and make a DVD from it (either with the tools found in MythTV or by moving it to another computer and doing it there). View the DVD. Is the quality acceptable? If not, then the tuner or the cable feed is the problem, and buying a 350 probably won't help.
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kpdillon
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Posted: Tue Nov 28, 2006 10:22 pm |
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Joined: Mon Nov 06, 2006 1:10 pm
Posts: 17
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Excellent suggestion I will try that. I also know someone with a myth box that has a PVR 350 that has graciously accepted my request to try it out in my system to see if there is a noticeable difference. I will report back on the results, we'll be trying it out Friday night. I agree, everyone has a different perception of what is acceptable. What makes this hard is there is a noticeable difference between the TIVO and the Myth display. Not that I'm plugging TIVO because truthfully it's not a perfect picture but it's still better than what I'm seeing with Myth. And the video on Myth still looks like slightly compressed video, just not as dark anymore with the change of the SVIDEO input change.
I am suspecting the PVR-150 is where the quality issue is as DVD's now display nicely. Cable signal could be it too but I used the same coax cable connection into the myth as I did the TIVO for a fare comparison. I even tried with and without a cable signal booster. We'll see it will be interesting to see if there is a noticeable difference between the PVR-150 and PVR-350. I'm determined to figure this out!
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tjc
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Posted: Thu Nov 30, 2006 9:13 pm |
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location:
Arlington, MA
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Looking through all this I don't see any indication of what KM version you've got installed (everyone seems to be assuming the latest), and whether you've upgraded your ivtv drivers to the latest appropriate version. (For R5C7 this would be ivtv 0.4.7, and for R5D1 it would be 0.7.1) See this wiki page for (very) detailed instructions: http://www.knoppmythwiki.org/index.php?page=CompileIvtv
At least in the R5C7 case the driver upgrades can make a huge difference in capture quality, especially with the PVR-150 cards, and most notably in the area of color quality. As already noted, the PictureQualityIssues page on the wiki includes a whole variety of things to try, and it may take a combination of adjustments.
Another thought, If you're using the us-cable frequency, set try the us-cable-irc set which is slightly different. Before this was added to MythTV I improved my capture quality by a notch or two by doing the equivalent using the finetuning adjustments.
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kpdillon
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Posted: Fri Dec 01, 2006 9:21 pm |
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Joined: Mon Nov 06, 2006 1:10 pm
Posts: 17
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It's the PVR-150 tuners. They suck (both, the one with the remote and the one without. The PVR-350 tuner is definetly better. Tried upgrading the IVTV drivers for the the 150 and that didn't help. Also tried US-CABLE-IRC and that didn't help. Is there other PVR-150 input settings that can be changed or should I just RMA these and get 350's?
BTW, I am using KM R5D1.
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tjc
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Posted: Fri Dec 01, 2006 9:54 pm |
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location:
Arlington, MA
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I've got a 250 (essentially the same hardware as a 350 without the decoder) and a 150 and with current drivers the quality is equally good. What tuner chips do you have on the 150s?
Code: root@black2:~# dmesg | grep 'tuner model' tveeprom 2-0050: tuner model is Philips FI1236 MK2 (idx 10, type 2) tveeprom 3-0050: tuner model is TCL 2002N 5H (idx 99, type 50)
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