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Old 09-07-06, 08:13 AM   #1
caish5
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Join Date: Jul 2006
Posts: 11
Default Trouble with LCD TV

Hi all,

I have a Sansui LCD tv connected to my linux box through a DVI cable, I also have a normal CRT monitor connected. These are setup side by side as dual dispalys.
I have a FX5200 video card.
The monitor is set to 1280x1024 and works fine.
The lcd tv's native res is 1280x720 but all i can get it to do is 1024x768.
Naturally for a 16:9 display this results in a stretched image.

The TV's recommended settings from the manual are as follows...
V.Freq (hz) 59.870
H.Freq (hz)47.776
1280x720

In another manual page i see...
Frequency Range
Horizontal: 15.6-90khz
Vertical: 48-85
Res. Equal or less than 1280x720

My xorg currently looks like this....
Code:
# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
	FontPath	"/usr/share/X11/fonts/misc"
	FontPath	"/usr/share/X11/fonts/cyrillic"
	FontPath	"/usr/share/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/Type1"
	FontPath	"/usr/share/X11/fonts/100dpi"
	FontPath	"/usr/share/X11/fonts/75dpi"
	# path to defoma fonts
	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
	Load	"i2c"
	Load	"bitmap"
	Load	"ddc"
#	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"type1"
	Load	"vbe"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc104"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ExplorerPS/2"
	Option		"ZAxisMapping"		"4 5"
	Option		"Emulate3Buttons"	"true"
EndSection

Section "Device"
	Identifier	"Device[0]"
	Driver		"nvidia"
	BusID		"PCI:1:0:0"
        Screen 0
        Option "UseDisplayDevice" "CRT"
        Option "RenderAccel" "True"
        Option "AllowGLXWithComposite" "true"
        Option "UseEdidDpi" "FALSE"
EndSection

Section "Device" 
   	Driver          "nvidia" 
   	Identifier      "Device[1]" 
   	Screen 1 
        Option "UseDisplayDevice" "TV"
   	Option          "TVOutFormat" "SVIDEO" #or SVIDEO etc 
   	Option          "TVStandard" "PAL-G" #or NTSC etc 
   	Option          "ConnectedMonitor" "Monitor[1]" 
   	BusID           "PCI:1:0:0" #adjust using 'lspci' or cat /proc/pci 
        Option "RenderAccel" "True"
        Option "AllowGLXWithComposite" "true"
        Option "UseEdidDpi" "FALSE"
EndSection
        
        
Section "Monitor"
	Identifier	"Monitor[0]" #CRT
	Option		"DPMS"
        HorizSync 31.5-80 
        	VertRefresh 56.3-75 
EndSection

Section "Modes"
        Identifier     "Modes[0]"
        Modeline        "1280x720_60.00" 74.453 1280 1448 1584 1696 720 721 724 746 -hsync +vsync
EndSection

Section "Monitor" 
    Identifier "Monitor[1]" #TV 
    
EndSection

Section "Screen"
	Identifier	"Screen[0]"
	Device		"Device[0]"
	Monitor		"Monitor[0]"
	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "640x480"
	EndSubSection
EndSection

Section "Screen" 
   	Device "Device[1]" 
   	Identifier "Screen[1]" 
   	Monitor "Monitor[1]" 
   	DefaultDepth 24 
        Option "ModeValidation" "NoVertRefreshCheck"
       	SubSection "Display" 
               Depth 24 
               Modes "1280x720" 
       	EndSubSection    
EndSection

# Section "ServerLayout"
#	Identifier	"My Layout"
#	    Screen 0 "Screen[0]" 

#           Screen 1 "Screen[1]" RightOf "Screen[0]" 
#	InputDevice	"Generic Keyboard"
#	InputDevice	"Configured Mouse"
# EndSection

Section "ServerLayout"
	Identifier	"xinerama"
	Screen	0	"Screen[0]"
	Screen	1	"Screen[1]" RightOf "Screen[0]"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
	Option	"xinerama"	"1"
EndSection



Section "DRI"
	Mode	0666
EndSection

Section "ServerFlags"
  Option    "Xinerama" "on"
EndSection
Any help at all would be very much appeciated, I'm at a total loss.
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Old 09-07-06, 11:34 AM   #2
netllama
NVIDIA Corporation
 
Join Date: Dec 2004
Posts: 8,763
Default Re: Trouble with LCD TV

Please start X with the following command:
startx -- -logverbose 6

and then generate and post an nvidia-bug-report.log.

Thanks,
Lonni
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Old 09-07-06, 10:44 PM   #3
caish5
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Join Date: Jul 2006
Posts: 11
Default Re: Trouble with LCD TV

I couldn't attach it here because it was too big.
So here is a link to my webspace.

http://members.optusnet.com.au/aptin...bug-report.log
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Old 09-08-06, 11:44 AM   #4
netllama
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Join Date: Dec 2004
Posts: 8,763
Default Re: Trouble with LCD TV

I don't see a 1280x720 mode in the EDID for your DFP. How did you obtain the "1280x720_60.00" modeline that you're using?

Thanks,
Lonni
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Old 09-09-06, 10:59 AM   #5
caish5
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Join Date: Jul 2006
Posts: 11
Default Re: Trouble with LCD TV

I got it from some random website, not sure if i'm using it correctly, never seemed to work anyway.
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Old 09-09-06, 11:15 AM   #6
netllama
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Join Date: Dec 2004
Posts: 8,763
Default Re: Trouble with LCD TV

DFP's are typically very picky about the modes that are used. Unless you're using a native mode (in the EDID), you'll get either very poor picture quality, or no picture at all. I'm afraid that I don't see anything in your bug report to suggest that 1280x720 will work.

-Lonni
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Old 09-09-06, 11:32 AM   #7
caish5
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Join Date: Jul 2006
Posts: 11
Default Re: Trouble with LCD TV

however 1280x720 is the display's native res.
And it works brilliantly in windows
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Old 09-09-06, 11:59 AM   #8
pe1chl
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Join Date: Aug 2003
Posts: 1,026
Default Re: Trouble with LCD TV

You can generate the modelines using cvt. This was probably also the way the mentioned modeline was generated.

# 1280x720 @ 60.00 Hz (CVT)
# field rate 59.86 Hz; hsync: 44.77 kHz; pclk: 74.50 MHz
Modeline "1280x720_60.00" 74.50 1280 1344 1472 1664 720 723 728 748 -HSync +Vsync
# 1280x720 @ 60.00 Hz Reduced Blank (CVT)
# field rate 59.98 Hz; hsync: 44.44 kHz; pclk: 64.00 MHz
Modeline "1280x720_60.00_rb" 64.00 1280 1328 1360 1440 720 723 728 741 +HSync -Vsync

Of course you can also get the exact frequencies mentioned in the manual by manually calculating the modeline. First make sure the driver is not somehow rejecting your modeline because it thinks it knows better. You may need some special incantations (see the README.txt) to override the checks it does.
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Old 09-09-06, 11:03 PM   #9
netllama
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Join Date: Dec 2004
Posts: 8,763
Default Re: Trouble with LCD TV

Is 1280x720 documented in the User's Manual for the TV? If so, is this manual available online for me to review?

Thanks,
Lonni
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Old 09-10-06, 11:50 AM   #10
caish5
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Join Date: Jul 2006
Posts: 11
Default Re: Trouble with LCD TV

Yea, it came from the manual, I don't believe its available online.

Code:
II) NVIDIA(1):   Validating Mode "1280x720_60.00":
(II) NVIDIA(1):     1280 x 720 @ 59 Hz
(II) NVIDIA(1):     Mode Source: Custom ModeLine
(II) NVIDIA(1):       Pixel Clock      : 74.45 MHz
(II) NVIDIA(1):       HRes, HSyncStart : 1280, 1448
(II) NVIDIA(1):       HSyncEnd, HTotal : 1584, 1696
(II) NVIDIA(1):       VRes, VSyncStart :  720,  721
(II) NVIDIA(1):       VSyncEnd, VTotal :  724,  746
(II) NVIDIA(1):       H/V Polarity     : -/+
(WW) NVIDIA(1):     Mode is rejected: Only 60 Hz VertRefresh modes are allowed
(WW) NVIDIA(1):     for this TMDS encoder; this mode had VertRefresh 58.8 Hz.
Trying to find the override bits in the readme, but having no luck as yea, obviously, maybe we are putting them in the wrong place in the xorg.conf .

At the moment they are in the display and screen sections.

Here is the xrog.conf at the moment

Code:
# /etc/X11/xorg.conf (xorg X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type "man /etc/X11/xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
#   sudo dpkg-reconfigure -phigh xserver-xorg

Section "Files"
	FontPath	"/usr/share/X11/fonts/misc"
	FontPath	"/usr/share/X11/fonts/cyrillic"
	FontPath	"/usr/share/X11/fonts/100dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/75dpi/:unscaled"
	FontPath	"/usr/share/X11/fonts/Type1"
	FontPath	"/usr/share/X11/fonts/100dpi"
	FontPath	"/usr/share/X11/fonts/75dpi"
	# path to defoma fonts
	FontPath	"/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
	Load	"i2c"
	Load	"bitmap"
	Load	"ddc"
#	Load	"dri"
	Load	"extmod"
	Load	"freetype"
	Load	"glx"
	Load	"int10"
	Load	"type1"
	Load	"vbe"
EndSection

Section "InputDevice"
	Identifier	"Generic Keyboard"
	Driver		"kbd"
	Option		"CoreKeyboard"
	Option		"XkbRules"	"xorg"
	Option		"XkbModel"	"pc104"
	Option		"XkbLayout"	"us"
EndSection

Section "InputDevice"
	Identifier	"Configured Mouse"
	Driver		"mouse"
	Option		"CorePointer"
	Option		"Device"		"/dev/input/mice"
	Option		"Protocol"		"ExplorerPS/2"
	Option		"ZAxisMapping"		"4 5"
	Option		"Emulate3Buttons"	"true"
EndSection

Section "Device"
	Identifier	"Device[0]"
	Driver		"nvidia"
	BusID		"PCI:1:0:0"
        Screen 0
        Option "UseDisplayDevice" "CRT"
        Option "RenderAccel" "True"
        Option "AllowGLXWithComposite" "true"
        Option "UseEdidDpi" "FALSE"
EndSection

Section "Device" 
   	Driver          "nvidia" 
   	Identifier      "Device[1]" 
   	Screen 1 
        Option "UseDisplayDevice" "DFP"
     	BusID           "PCI:1:0:0" #adjust using 'lspci' or cat /proc/pci 
        Option "RenderAccel" "True"
        Option "AllowGLXWithComposite" "true"
        Option "ModeValidation" "NoVertRefreshCheck"
EndSection
        
        
Section "Monitor"
	Identifier	"Monitor[0]" #CRT
	Option		"DPMS"
        HorizSync 31.5-80 
        	VertRefresh 56.3-75 
EndSection

       
Section "Monitor" 
    Identifier "Monitor[1]" #DFP
    Modeline        "1280x720_60.00" 74.453 1280 1448 1584 1696 720 721 724 746 -hsync +vsync
    VertRefresh 60
EndSection

Section "Screen"
	Identifier	"Screen[0]"
	Device		"Device[0]"
	Monitor		"Monitor[0]"
	DefaultDepth	24
	SubSection "Display"
		Depth		1
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		4
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		8
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		15
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		16
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "640x480"
	EndSubSection
	SubSection "Display"
		Depth		24
		Modes		"1280x1024" "1024x768" "832x624" "800x600" "640x480"
	EndSubSection
EndSection

Section "Screen" 
   	Device "Device[1]" 
   	Identifier "Screen[1]" 
   	Monitor "Monitor[1]" 
   	DefaultDepth 24 
        SubSection "Display" 
               Depth 24 
               Modes "1280x720_60.00" 
       	EndSubSection    
 Option "ModeValidation" "NoVertRefreshCheck"
EndSection

# Section "ServerLayout"
#	Identifier	"My Layout"
#	    Screen 0 "Screen[0]" 

#           Screen 1 "Screen[1]" RightOf "Screen[0]" 
#	InputDevice	"Generic Keyboard"
#	InputDevice	"Configured Mouse"
# EndSection

Section "ServerLayout"
	Identifier	"xinerama"
	Screen	0	"Screen[0]"
	Screen	1	"Screen[1]" RightOf "Screen[0]"
	InputDevice	"Generic Keyboard"
	InputDevice	"Configured Mouse"
	Option	"xinerama"	"1"
EndSection



Section "DRI"
	Mode	0666
EndSection

Section "ServerFlags"
  Option    "Xinerama" "on"
EndSection
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Old 09-10-06, 11:55 AM   #11
netllama
NVIDIA Corporation
 
Join Date: Dec 2004
Posts: 8,763
Default Re: Trouble with LCD TV

The option that you're looking for is ModeValidation. You'll need the AllowNon60HzDFPModes parameter.

Thanks,
Lonni
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Old 09-10-06, 12:34 PM   #12
caish5
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Join Date: Jul 2006
Posts: 11
Default Re: Trouble with LCD TV

Code:
	Option "UseEdidFreqs" "FALSE"
	Option "ModeValidation" "AllowNon60HzDFPModes, NoHorizSyncCheck, NoVertRefreshCheck"
Was added with dramatic results.

It seems, the lcd is attempting to display at crazy resolutions which don't seem to have any reason for coming up, (at least the lcd tells us its these resolution with its display, osd.). It displays for a split second, then changes resolution as it can't sync.

e.g
1231x1024@75hz
1258x1024@75hz
.
.
.
etc
etc

Really confused as to why its mkaing resolutions up, or is using 75hz.
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