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TV picture goes black when x windows starts
http://forum.linhes.org/viewtopic.php?f=6&t=13189		 Page 1 of 1
Author:  lagreca [ Sat Dec 30, 2006 4:22 pm ]
Post subject:  TV picture goes black when x windows starts
When I connect my myth box to my tv, I see the computers post message, as well as all the Linux startup information. However it seems when x windows try to start, the screen just goes black.

When installing knoppmyth, I selected, "tv" at the startup prompt, to get 800x600 resolution.

If I press Ctrl + Alt + F1 to get to a console, while connected to the TV, I get these wave lines on the TV. I quickly changed back to ctrl alt f7, for fear that mode was going to break my TV.

If I bring the box back into the office and hook it up to a monitor, it works fine.

I am using a ATI 7200 card with composite out to the TV. I don't have the adapter to use the svideo output of the card.

Does anyone have an idea how I can get output to my tv? Thanks.
Author:  tjc [ Sat Dec 30, 2006 4:39 pm ]
Post subject: 
See this wiki page for some techniques to get your X configuration working - http://www.knoppmythwiki.org/index.php?page=BlackScreenAfterInstall
Author:  lagreca [ Sun Dec 31, 2006 12:56 am ]
Post subject: 
I've tried making the changes the wiki suggests:
Code:
/etc/X11/XF86Config-4 contains:

HorizSync 30 - 50
VertRefresh 60


and also

Code:
edit your lilo.conf. At the top, it should say vga=<XXX>. Change it to vga=normal


but still no luck.

I also think it has something to do with the XF86Config-4 config. I've lowered the resolution to 640x480, just to try and get it working, but no luck.

This is what I have so far:

Code:
Section "ServerLayout"
   Identifier     "XFree86 Configured"
   Screen      0  "Screen0" 0 0
   InputDevice    "Keyboard0" "CoreKeyboard"
# PS/2 Mouse using /dev/input/mice in Kernel 2.6
# Serial Mouse not detected
        InputDevice    "USB Mouse" "CorePointer"
EndSection

Section "ServerFlags"
   Option "AllowMouseOpenFail"  "true"
   
EndSection

Section "Files"
   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"
# Additional fonts: Locale, Gimp, TTF...
   FontPath     "/usr/X11R6/lib/X11/fonts/cyrillic"
#   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!
   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  "ddc"  # ddc probing of monitor
   Load  "GLcore"
   Load  "dbe"
   Load  "dri"
   Load  "extmod"
   Load  "glx"
        Load  "bitmap" # bitmap-fonts
   Load  "speedo"
   Load  "type1"
   Load  "freetype"
   Load  "record"
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

# Auto-generated by KNOPPIX mkxf86config


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"
   Identifier  "Card0"
# The following line is auto-generated by KNOPPIX mkxf86config
   Driver      "radeon"
   VendorName  "All"
   BoardName   "All"
#   BusID       "PCI:1:0:0"
EndSection

Section "Screen"
   Identifier "Screen0"
   Device     "Card0"
   Monitor    "Monitor0"
   DefaultColorDepth 16
   SubSection "Display"
      Depth     1
      Modes "640x480"
   EndSubSection
   SubSection "Display"
      Depth     4
      Modes "640x480"
   EndSubSection
   SubSection "Display"
      Depth     8
      Modes "640x480"
   EndSubSection
   SubSection "Display"
      Depth     15
      Modes "640x480"
   EndSubSection
   SubSection "Display"
      Depth     16
      Modes "640x480"
   EndSubSection
   SubSection "Display"
      Depth     24
      Modes "640x480"
   EndSubSection
   SubSection "Display"
      Depth     32
      Modes "640x480"
   EndSubSection
EndSection

Section "DRI"
   Mode 0666
EndSection
Section "Monitor"
   Identifier   "Monitor0"
   Option   "DPMS"   "true"
#   HorizSync    28.0 - 78.0 # Warning: This may fry very old Monitors
   HorizSync 30 - 50
   VertRefresh 60
#   HorizSync    28.0 - 96.0 # Warning: This may fry old Monitors
#   VertRefresh  50.0 - 75.0 # 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
   ModeLine "640x350"    31.5  640  672  736  832    350  382  385  445 +hsync -vsync
   # 640x400 @ 85Hz (VESA) hsync: 37.9kHz
   ModeLine "640x400"    31.5  640  672  736  832    400  401  404  445 -hsync +vsync
   # 720x400 @ 85Hz (VESA) hsync: 37.9kHz
   ModeLine "720x400"    35.5  720  756  828  936    400  401  404  446 -hsync +vsync
   # 640x480 @ 60Hz (Industry standard) hsync: 31.5kHz
   ModeLine "640x480"    25.2  640  656  752  800    480  490  492  525 -hsync -vsync
   # 640x480 @ 72Hz (VESA) hsync: 37.9kHz
   ModeLine "640x480"    31.5  640  664  704  832    480  489  491  520 -hsync -vsync
   # 640x480 @ 75Hz (VESA) hsync: 37.5kHz
   ModeLine "640x480"    31.5  640  656  720  840    480  481  484  500 -hsync -vsync
   # 640x480 @ 85Hz (VESA) hsync: 43.3kHz
   ModeLine "640x480"    36.0  640  696  752  832    480  481  484  509 -hsync -vsync
   # 800x600 @ 56Hz (VESA) hsync: 35.2kHz
   ModeLine "800x600"    36.0  800  824  896 1024    600  601  603  625 +hsync +vsync
   # 800x600 @ 60Hz (VESA) hsync: 37.9kHz
   ModeLine "800x600"    40.0  800  840  968 1056    600  601  605  628 +hsync +vsync
   # 800x600 @ 72Hz (VESA) hsync: 48.1kHz
   ModeLine "800x600"    50.0  800  856  976 1040    600  637  643  666 +hsync +vsync
   # 800x600 @ 75Hz (VESA) hsync: 46.9kHz
   ModeLine "800x600"    49.5  800  816  896 1056    600  601  604  625 +hsync +vsync
   # 800x600 @ 85Hz (VESA) hsync: 53.7kHz
   ModeLine "800x600"    56.3  800  832  896 1048    600  601  604  631 +hsync +vsync
   # 1024x768i @ 43Hz (industry standard) hsync: 35.5kHz
   ModeLine "1024x768"   44.9 1024 1032 1208 1264    768  768  776  817 +hsync +vsync Interlace
   # 1024x768 @ 60Hz (VESA) hsync: 48.4kHz
   ModeLine "1024x768"   65.0 1024 1048 1184 1344    768  771  777  806 -hsync -vsync
   # 1024x768 @ 70Hz (VESA) hsync: 56.5kHz
   ModeLine "1024x768"   75.0 1024 1048 1184 1328    768  771  777  806 -hsync -vsync
   # 1024x768 @ 75Hz (VESA) hsync: 60.0kHz
   ModeLine "1024x768"   78.8 1024 1040 1136 1312    768  769  772  800 +hsync +vsync
   # 1024x768 @ 85Hz (VESA) hsync: 68.7kHz
   ModeLine "1024x768"   94.5 1024 1072 1168 1376    768  769  772  808 +hsync +vsync
   # 1152x864 @ 75Hz (VESA) hsync: 67.5kHz
   ModeLine "1152x864"  108.0 1152 1216 1344 1600    864  865  868  900 +hsync +vsync
   # 1280x960 @ 60Hz (VESA) hsync: 60.0kHz
   ModeLine "1280x960"  108.0 1280 1376 1488 1800    960  961  964 1000 +hsync +vsync
   # 1280x960 @ 85Hz (VESA) hsync: 85.9kHz
   ModeLine "1280x960"  148.5 1280 1344 1504 1728    960  961  964 1011 +hsync +vsync
   # 1280x1024 @ 60Hz (VESA) hsync: 64.0kHz
   ModeLine "1280x1024" 108.0 1280 1328 1440 1688   1024 1025 1028 1066 +hsync +vsync
   # 1280x1024 @ 75Hz (VESA) hsync: 80.0kHz
   ModeLine "1280x1024" 135.0 1280 1296 1440 1688   1024 1025 1028 1066 +hsync +vsync
   # 1280x1024 @ 85Hz (VESA) hsync: 91.1kHz
   ModeLine "1280x1024" 157.5 1280 1344 1504 1728   1024 1025 1028 1072 +hsync +vsync
   # 1600x1200 @ 60Hz (VESA) hsync: 75.0kHz
   ModeLine "1600x1200" 162.0 1600 1664 1856 2160   1200 1201 1204 1250 +hsync +vsync
   # 1600x1200 @ 65Hz (VESA) hsync: 81.3kHz
   ModeLine "1600x1200" 175.5 1600 1664 1856 2160   1200 1201 1204 1250 +hsync +vsync
   # 1600x1200 @ 70Hz (VESA) hsync: 87.5kHz
   ModeLine "1600x1200" 189.0 1600 1664 1856 2160   1200 1201 1204 1250 +hsync +vsync
   # 1600x1200 @ 75Hz (VESA) hsync: 93.8kHz
   ModeLine "1600x1200" 202.5 1600 1664 1856 2160   1200 1201 1204 1250 +hsync +vsync
   # 1600x1200 @ 85Hz (VESA) hsync: 106.3kHz
   ModeLine "1600x1200" 229.5 1600 1664 1856 2160   1200 1201 1204 1250 +hsync +vsync
   # 1792x1344 @ 60Hz (VESA) hsync: 83.6kHz
   ModeLine "1792x1344" 204.8 1792 1920 2120 2448   1344 1345 1348 1394 -hsync +vsync
   # 1792x1344 @ 75Hz (VESA) hsync: 106.3kHz
   ModeLine "1792x1344" 261.0 1792 1888 2104 2456   1344 1345 1348 1417 -hsync +vsync
   # 1856x1392 @ 60Hz (VESA) hsync: 86.3kHz
   ModeLine "1856x1392" 218.3 1856 1952 2176 2528   1392 1393 1396 1439 -hsync +vsync
   # 1856x1392 @ 75Hz (VESA) hsync: 112.5kHz
   ModeLine "1856x1392" 288.0 1856 1984 2208 2560   1392 1393 1396 1500 -hsync +vsync
   # 1920x1440 @ 60Hz (VESA) hsync: 90.0kHz
   ModeLine "1920x1440" 234.0 1920 2048 2256 2600   1440 1441 1444 1500 -hsync +vsync
   # 1920x1440 @ 75Hz (VESA) hsync: 112.5kHz
   ModeLine "1920x1440" 297.0 1920 2064 2288 2640   1440 1441 1444 1500 -hsync +vsync
   # Additional modelines
   ModeLine "1800x1440"  230    1800 1896 2088 2392  1440 1441 1444 1490 +HSync +VSync
   ModeLine "1800x1440"  250    1800 1896 2088 2392  1440 1441 1444 1490 +HSync +VSync
   # Extended modelines with GTF timings
   # 640x480 @ 100.00 Hz (GTF) hsync: 50.90 kHz; pclk: 43.16 MHz
   ModeLine "640x480"  43.16  640 680 744 848  480 481 484 509  -HSync +Vsync
   # 768x576 @ 60.00 Hz (GTF) hsync: 35.82 kHz; pclk: 34.96 MHz
   ModeLine "768x576"  34.96  768 792 872 976  576 577 580 597  -HSync +Vsync
   # 768x576 @ 72.00 Hz (GTF) hsync: 43.27 kHz; pclk: 42.93 MHz
   ModeLine "768x576"  42.93  768 800 880 992  576 577 580 601  -HSync +Vsync
   # 768x576 @ 75.00 Hz (GTF) hsync: 45.15 kHz; pclk: 45.51 MHz
   ModeLine "768x576"  45.51  768 808 888 1008  576 577 580 602  -HSync +Vsync
   # 768x576 @ 85.00 Hz (GTF) hsync: 51.42 kHz; pclk: 51.84 MHz
   ModeLine "768x576"  51.84  768 808 888 1008  576 577 580 605  -HSync +Vsync
   # 768x576 @ 100.00 Hz (GTF) hsync: 61.10 kHz; pclk: 62.57 MHz
   ModeLine "768x576"  62.57  768 816 896 1024  576 577 580 611  -HSync +Vsync
   # 800x600 @ 100.00 Hz (GTF) hsync: 63.60 kHz; pclk: 68.18 MHz
   ModeLine "800x600"  68.18  800 848 936 1072  600 601 604 636  -HSync +Vsync
   # 1024x768 @ 100.00 Hz (GTF) hsync: 81.40 kHz; pclk: 113.31 MHz
   ModeLine "1024x768"  113.31  1024 1096 1208 1392  768 769 772 814  -HSync +Vsync
   # 1152x864 @ 60.00 Hz (GTF) hsync: 53.70 kHz; pclk: 81.62 MHz
   ModeLine "1152x864"  81.62  1152 1216 1336 1520  864 865 868 895  -HSync +Vsync
   # 1152x864 @ 85.00 Hz (GTF) hsync: 77.10 kHz; pclk: 119.65 MHz
   ModeLine "1152x864"  119.65  1152 1224 1352 1552  864 865 868 907  -HSync +Vsync
   # 1152x864 @ 100.00 Hz (GTF) hsync: 91.50 kHz; pclk: 143.47 MHz
   ModeLine "1152x864"  143.47  1152 1232 1360 1568  864 865 868 915  -HSync +Vsync
   # 1280x960 @ 72.00 Hz (GTF) hsync: 72.07 kHz; pclk: 124.54 MHz
   ModeLine "1280x960"  124.54  1280 1368 1504 1728  960 961 964 1001  -HSync +Vsync
   # 1280x960 @ 75.00 Hz (GTF) hsync: 75.15 kHz; pclk: 129.86 MHz
   ModeLine "1280x960"  129.86  1280 1368 1504 1728  960 961 964 1002  -HSync +Vsync
   # 1280x960 @ 100.00 Hz (GTF) hsync: 101.70 kHz; pclk: 178.99 MHz
   ModeLine "1280x960"  178.99  1280 1376 1520 1760  960 961 964 1017  -HSync +Vsync
   # 1280x1024 @ 100.00 Hz (GTF) hsync: 108.50 kHz; pclk: 190.96 MHz
   ModeLine "1280x1024"  190.96  1280 1376 1520 1760  1024 1025 1028 1085  -HSync +Vsync
   # 1400x1050 @ 60.00 Hz (GTF) hsync: 65.22 kHz; pclk: 122.61 MHz
   ModeLine "1400x1050"  122.61  1400 1488 1640 1880  1050 1051 1054 1087  -HSync +Vsync
   # 1400x1050 @ 72.00 Hz (GTF) hsync: 78.77 kHz; pclk: 149.34 MHz
   ModeLine "1400x1050"  149.34  1400 1496 1648 1896  1050 1051 1054 1094  -HSync +Vsync
   # 1400x1050 @ 75.00 Hz (GTF) hsync: 82.20 kHz; pclk: 155.85 MHz
   ModeLine "1400x1050"  155.85  1400 1496 1648 1896  1050 1051 1054 1096  -HSync +Vsync
   # 1400x1050 @ 85.00 Hz (GTF) hsync: 93.76 kHz; pclk: 179.26 MHz
   ModeLine "1400x1050"  179.26  1400 1504 1656 1912  1050 1051 1054 1103  -HSync +Vsync
   # 1400x1050 @ 100.00 Hz (GTF) hsync: 111.20 kHz; pclk: 214.39 MHz
   ModeLine "1400x1050"  214.39  1400 1512 1664 1928  1050 1051 1054 1112  -HSync +Vsync
   # 1600x1200 @ 100.00 Hz (GTF) hsync: 127.10 kHz; pclk: 280.64 MHz
   ModeLine "1600x1200"  280.64  1600 1728 1904 2208  1200 1201 1204 1271  -HSync +Vsync
   # 1920x1200 @ 60.00 Hz (GTF)  hsync: 74.52; pclk: 193.16 MHz
   Modeline "1920x1200" 193.16  1920 2048 2256 2592  1200 1201 1204 1242  -HSync +HSync
   #Analog-RegularModes
   ModeLine "NTSCspec-59.94i" 14.318 768 784 848 910 483 484 492 525 Interlace
   ModeLine "NTSCspec-59.94p" 28.636 768 784 848 910 483 484 492 525
#   ModeLine "Laserdisk-59.94i" 567 583 647 684 483 484 492 525 Interlace
#   ModeLine "Laserdisk-59.94p" 567 583 647 684 483 484 492 525
#   ModeLine "Broadcast-59.94i" 483 484 492 525 Interlace
#   ModeLine "Broadcast-59.94p" 483 484 492 525
#   ModeLine "VHS-59.94i" 483 484 492 525 Interlace
#   ModeLine "VHS-59.94p" 483 484 492 525

   #DVD-NativeModes
   ModeLine "NTSC-DVD-59.94i" 13.5 720 736 800 858 480 484 492 525 Interlace
   ModeLine "NTSC-DVD-60i" 13.514 720 736 800 858 480 484 492 525 Interlace
   ModeLine "NTSC-DVD-59.94p" 27.0 720 736 800 858 480 484 492 525
   ModeLine "NTSC-DVD-60p" 27.027 720 736 800 858 480 484 492 525
   ModeLine "NTSC-DVD-71.93p" 32.4 720 736 800 858 480 484 492 525
   ModeLine "NTSC-DVD-72p" 32.432 720 736 800 858 480 484 492 525
   ModeLine "NTSC-DVD-119.88p" 54.0 720 736 800 858 480 484 492 525
   ModeLine "NTSC-DVD-120p" 54.054 720 736 800 858 480 484 492 525

   #DILA-Projector-NativeModes
   ModeLine "DILA-47.95p" 91.493 1360 1464 1608 1800 1024 1026 1028 1060
   ModeLine "DILA-48p" 91.584 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" 114.366 1360 1464 1608 1800 1024 1026 1028 1060
   ModeLine "DILA-60p" 114.48 1360 1464 1608 1800 1024 1026 1028 1060
   ModeLine "DILA-71.93p" 137.239 1360 1464 1608 1800 1024 1026 1028 1060
   ModeLine "DILA-72p" 137.376 1360 1464 1608 1800 1024 1026 1028 1060
   ModeLine "DILA-MarkR-71.997" 139.202 1360 1464 1608 1824 1024 1026 1028 1060

   #DTV-StandardModes
   ModeLine "ATSC-480-59.94i" 11.958 640 664 736 760 480 484 492 525 Interlace
   ModeLine "ATSC-480-60i" 11.97 640 664 736 760 480 484 492 525 Interlace
   ModeLine "ATSC-480-59.94p" 23.916 640 664 736 760 480 484 492 525
   ModeLine "ATSC-480-60p" 23.94 640 664 736 760 480 484 492 525
   ModeLine "ATSC-480a-59.94i" 11.958 640 664 736 760 480 484 492 525 Interlace
   ModeLine "ATSC-480a-60i" 11.97 640 664 736 760 480 484 492 525 Interlace
   ModeLine "ATSC-480a-59.94p" 23.916 640 664 736 760 480 484 492 525
   ModeLine "ATSC-480a-60p" 23.94 640 664 736 760 480 484 492 525
   ModeLine "ATSC-720-59.94p" 74.176 1280 1320 1376 1650 720 722 728 750
   ModeLine "ATSC-720-60p" 74.25 1280 1320 1376 1650 720 722 728 750
   ModeLine "ATSC-1080-59.94i" 74.176 1920 1960 2016 2200 1080 1082 1088 1125 Interlace
   ModeLine "ATSC-1080-60i" 74.25 1920 1960 2016 2200 1080 1082 1088 1125 Interlace
   ModeLine "ATSC-1080-59.94p" 148.352 1920 1960 2016 2200 1080 1082 1088 1125
   ModeLine "ATSC-1080-60p" 148.5 1920 1960 2016 2200 1080 1082 1088 1125
   
   #DTV-MovieModes
   ModeLine "ATSC-480-71.93p" 28.699 640 664 736 760 480 484 492 525
   ModeLine "ATSC-480-72p" 28.728 640 664 736 760 480 484 492 525
   ModeLine "ATSC-480-119.88p" 47.832 640 664 736 760 480 484 492 525
   ModeLine "ATSC-480-120p" 47.88 640 664 736 760 480 484 492 525
   ModeLine "ATSC-720-71.93p" 89.011 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" 148.351 1280 1296 1360 1650 720 722 728 750
   ModeLine "ATSC-720-120p" 148.5 1280 1296 1360 1650 720 722 728 750
   #ModeLine "ATSC-1080-71.93i" 1920 1960 2016 2200 1080 1082 1088 1125 Interlace
   #ModeLine "ATSC-1080-72i" 1920 1960 2016 2200 1080 1082 1088 1125 Interlace
   ModeLine "ATSC-1080-71.93p" 178.022 1920 1960 2016 2200 1080 1082 1088 1125
   ModeLine "ATSC-1080-72p" 178.2 1920 1960 2016 2200 1080 1082 1088 1125

   #DTV-PCTweakedModes
   ModeLine "NTSC-59.94i" 14.35 768 808 864 912 483 485 491 525 Interlace
   ModeLine "NTSC-59.94p" 28.699 768 808 864 912 483 485 491 525
   ModeLine "NTSC-DVD-59.94i" 13.469 720 760 816 856 480 482 488 525 Interlace
   ModeLine "NTSC-DVD-60i" 13.482 720 760 816 856 480 482 488 525 Interlace
   ModeLine "NTSC-DVD-59.94p" 26.937 720 760 816 856 480 482 488 525
   ModeLine "NTSC-DVD-60p" 26.964 720 760 816 856 480 482 488 525
   ModeLine "NTSC-DVD-71.93p" 32.324 720 760 816 856 480 482 488 525
   ModeLine "NTSC-DVD-72p" 32.357 720 760 816 856 480 482 488 525
   ModeLine "ATSC-480-59.94p" 23.916 640 664 736 760 480 482 488 525
   ModeLine "ATSC-480-60p" 23.94 640 664 736 760 480 482 488 525
   ModeLine "ATSC-480-71.93p" 28.699 640 664 736 760 480 482 488 525
   ModeLine "ATSC-480-72p" 28.728 640 664 736 760 480 482 488 525
   ModeLine "ATSC-720-59.94p" 74.086 1280 1320 1376 1648 720 722 728 750
   ModeLine "ATSC-720-60p" 74.16 1280 1320 1376 1648 720 722 728 750
   ModeLine "ATSC-720-71.93p" 88.903 1280 1320 1376 1648 720 722 728 750
   ModeLine "ATSC-720-72p" 88.992 1280 1320 1376 1648 720 722 728 750
   ModeLine "ATSC-1080-59.94i" 74.176 1920 1960 2016 2200 1080 1082 1088 1125 Interlace
   ModeLine "ATSC-1080-60i" 74.25 1920 1960 2016 2200 1080 1082 1088 1125 Interlace
   ModeLine "ATSC-1080-59.94p" 148.352 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" 178.022 1920 1960 2016 2200 1080 1082 1088 1125
   ModeLine "ATSC-1080-72p" 178.2 1920 1960 2016 2200 1080 1082 1088 1125

   #PAL ModeLines
   # 702x576 @ 25Hz, 15.6kHz hsync, itu-r bt.470 PAL, analog broadcast
   ModeLine "702x576@25i" 13.5 702 722 785 864 576 581 586 625 interlace -hsync -vsync
   # 704x576 @ 25Hz, 15.6kHz hsync, itu-r bt.470 PAL, mpeg, 702 dots displayed
   ModeLine "704x576@25i" 13.5 704 723 786 864 576 581 586 625 interlace -hsync -vsync
   # 720x576 @ 25Hz, 15.6kHz hsync, ccir601 PAL, mpeg, 702 dots displayed
   ModeLine "720x576@25i" 13.5 720 732 795 864 576 581 586 625 interlace -hsync -vsync
   # 768x576 @ 25Hz, 15.6kHz hsync, square dot itu-r bt.470 PAL, TV-monitor, 767 dots displayed
   ModeLine "768x576@25i" 14.75 768 789 858 944 576 581 586 625 interlace -hsync -vsync
   # 768x576 @ 50Hz, 31.3kHz hsync, progressive square dot itu-r bt.470 PAL
   ModeLine "768x576@50"  29.5 768 789 858 944 576 581 586 625 -hsync -vsync
   # nonstandard PAL (Works with BOB deinterlace) It is 60Hz but works well with nVIDIA PAL-B TV-OUT
   # Nvidia option: Option "TVStandard" "PAL-B"
   ModeLine "720x576@60" 32.7 720 744 816 912 576 577 580 597
   # This modeline is 50Hz interlaced and works well with kerneldeint:
   ModeLine "720x576i" 13.875 720 744 808 888 576 581 586 625 -hsync -vsync interlace
   # 720x576 75 Hz.
        ModeLine "720x576" 42.6 720 760 832 944 576 577 580 602 -HSync -VSync
EndSection
Author:  lagreca [ Sun Dec 31, 2006 1:26 am ]
Post subject: 
I wanted to clarify that I can see the computer POST on the tv screen, as well as start the linux boot process. However when it gets to running gdm, the screen just goes black.

If I try ctrl alt f1-f6 I get a black screen with white fuz.

Seems to me that the TV can't properly display what the video card is pushing out. Could it be as simple as getting the correct XF86Config-4 file?
Author:  tjc [ Sun Dec 31, 2006 1:25 pm ]
Post subject: 
Strip out all the extra modelines and go with something conservative. These work for me:
Code:
        Modeline "640x480" 25.175 640 664 760 800 480 491 493 525 #60Hz
        Modeline "640x480@60" 24.11 640 672 760 792 480 490 495 505

Also go see the X logfile "/var/log/Xorg.0.log".
Author:  lagreca [ Sun Dec 31, 2006 1:49 pm ]
Post subject: 
Here is my new XF86Config-4 file:

Code:
Section "ServerLayout"
   Identifier     "XFree86 Configured"
   Screen      0  "Screen0" 0 0
   InputDevice    "Keyboard0" "CoreKeyboard"
# PS/2 Mouse using /dev/input/mice in Kernel 2.6
# Serial Mouse not detected
        InputDevice    "USB Mouse" "CorePointer"
EndSection

Section "ServerFlags"
   Option "AllowMouseOpenFail"  "true"
   
EndSection

Section "Files"
   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"
# Additional fonts: Locale, Gimp, TTF...
   FontPath     "/usr/X11R6/lib/X11/fonts/cyrillic"
#   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!
   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  "ddc"  # ddc probing of monitor
   Load  "GLcore"
   Load  "dbe"
   Load  "dri"
   Load  "extmod"
   Load  "glx"
        Load  "bitmap" # bitmap-fonts
   Load  "speedo"
   Load  "type1"
   Load  "freetype"
   Load  "record"
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

# Auto-generated by KNOPPIX mkxf86config


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"
   Identifier  "Card0"
# The following line is auto-generated by KNOPPIX mkxf86config
   Driver      "radeon"
   VendorName  "All"
   BoardName   "All"
#   BusID       "PCI:1:0:0"
EndSection

Section "Screen"
   Identifier "Screen0"
   Device     "Card0"
   Monitor    "Monitor0"
   DefaultColorDepth 16
   SubSection "Display"
      Depth     1
      Modes "640x480"
   EndSubSection
   SubSection "Display"
      Depth     4
      Modes "640x480"
   EndSubSection
   SubSection "Display"
      Depth     8
      Modes "640x480"
   EndSubSection
   SubSection "Display"
      Depth     15
      Modes "640x480"
   EndSubSection
   SubSection "Display"
      Depth     16
      Modes "640x480"
   EndSubSection
   SubSection "Display"
      Depth     24
      Modes "640x480"
   EndSubSection
   SubSection "Display"
      Depth     32
      Modes "640x480"
   EndSubSection
EndSection

Section "DRI"
   Mode 0666
EndSection
Section "Monitor"
   Identifier   "Monitor0"
   Option   "DPMS"   "true"
#   HorizSync    28.0 - 78.0 # Warning: This may fry very old Monitors
   HorizSync 30 - 50
   VertRefresh 60
#   HorizSync    28.0 - 96.0 # Warning: This may fry old Monitors
#   VertRefresh  50.0 - 75.0 # 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 $
   Modeline "640x480" 25.175 640 664 760 800 480 491 493 525 #60Hz
    Modeline "640x480@60" 24.11 640 672 760 792 480 490 495 505
EndSection


I removed all the other mode lines, and put in the two conservative mode lines you suggested. I still get the same black screen after gdm starts.

I ssh'ed into the box, and ran mkxf86config These are the results:
Code:
root@mythtv:~# mkxf86config
 Video is (yet) unknown card, using XFree86(vesa) Server
 Monitor is Generic Monitor, H:28.0-96.0kHz, V:50.0-75.0Hz
 Using Modes "1024x768" "800x600" "640x480"


I'm guessing my TV can't display 1024x768, which may be the cause of my problems? I don't know why its using 1024, as I removed all those mode lines from the config file.

What are the next steps I should try to debug my mythtv?

Thanks for all the help.
Author:  tjc [ Sun Dec 31, 2006 2:20 pm ]
Post subject: 
Most of the drivers come with a bunch of built in modes, there's usually a way to tell it to stop using them, but I don't know what it is for your card. Check the log files to see if this is happening for you. You may also be able to use the key sequence to switch screen resolutions, sadly I don't recall what it is off the top of my head.
Author:  lagreca [ Sun Dec 31, 2006 3:36 pm ]
Post subject: 
I've tried the ctrl + alt + + and -, but they don't seem to change the resolution. After gdm starts, I can't even seem to use ctrl alt f1 to get to a command prompt.

Sadly, I will be forced to use M$ Windows and some PVR application that runs on top of it. Linux may be free, but thats is only the cost of the software. Linux seems to take about 10 times more effort and time to get working, even for the most simple of tasks.

I appreciate you taking time to help me troubleshoot my problems. Have a good new years!
Author:  psicard [ Sun Dec 31, 2006 4:10 pm ]
Post subject: 
It looks like you have an ATI card. If that's the case, then you may want to check this out:
http://www.knoppmythwiki.org/index.php? ... +Video+Out

If not, you probably need to change this line in your XF86Config-4 file:
Driver "radeon"
Author:  lagreca [ Sun Dec 31, 2006 6:45 pm ]
Post subject: 
Thanks very much for the pointer. Unfortunately I've already installed windows on the machine and am trying another PVR. But I when I get back around to MythTV, I will definitely try your suggestion. It sounds as if it may fix the problem.
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