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Gibble
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 Posted: Fri Nov 09, 2007 10:05 pm |
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Joined: Thu Sep 30, 2004 12:26 pm
Posts: 468
Location:
Canada
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So, I just hooked my mythbox up to an HD Widescreen projector
...I have to change something, somewhere to get the resolution right, but I have no clue what...or where.
_________________
"The amount of time needed to solve a problem is inversely proportionate to the complexity of the solution" -- Me
KM: R5.5
CPU: Athlon 3800+
Vid: nvidia 7300GT
Snd: Chaintech av-710
Tuner: PVR150
HD: 1000gb sata + 750gb sata + 500gb usb
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brfransen
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Posted: Fri Nov 09, 2007 11:52 pm |
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Joined: Fri Jul 21, 2006 11:12 pm
Posts: 1194
Location:
SC
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/etc/X11/xorg.conf
Britney
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Gibble
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Posted: Mon Nov 12, 2007 10:42 am |
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Joined: Thu Sep 30, 2004 12:26 pm
Posts: 468
Location:
Canada
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Got the file, not sure what changes to make.
_________________
"The amount of time needed to solve a problem is inversely proportionate to the complexity of the solution" -- Me
KM: R5.5
CPU: Athlon 3800+
Vid: nvidia 7300GT
Snd: Chaintech av-710
Tuner: PVR150
HD: 1000gb sata + 750gb sata + 500gb usb
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brfransen
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Posted: Mon Nov 12, 2007 2:48 pm |
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Joined: Fri Jul 21, 2006 11:12 pm
Posts: 1194
Location:
SC
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You will need to select a modeline that works for your display. Here are some examples: http://www.mythtv.org/wiki/index.php/Modeline_Database
I would start with the one of the nVidia Driver ModePool if you have an nVidia card.
In the xorg.conf under the "Screen" section, select the SubSection "Display" section of whatever your DefaultColorDepth is set to and change modes to:
Modes "1920x1080_60" "1280x720_60" "720x480_60"
Then do a pkill xinit to restart x. If your display doesn't come up you will have to find a custom modeline for your display.
Britney
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Gibble
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Posted: Mon Nov 12, 2007 3:11 pm |
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Joined: Thu Sep 30, 2004 12:26 pm
Posts: 468
Location:
Canada
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Thanks,
I'll try that when I get home.
Some extra info, yes it's a nVidia card, though I can't for life of me remember which  (edit: Might be a 7300GT)
And I'm connecting to a BenQ W500 Projector with s-video at the moment (not sure what the best connection choice is for this, though I'm sure it is NOT s-video :p).
_________________
"The amount of time needed to solve a problem is inversely proportionate to the complexity of the solution" -- Me
KM: R5.5
CPU: Athlon 3800+
Vid: nvidia 7300GT
Snd: Chaintech av-710
Tuner: PVR150
HD: 1000gb sata + 750gb sata + 500gb usb
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brfransen
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Posted: Mon Nov 12, 2007 5:47 pm |
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Joined: Fri Jul 21, 2006 11:12 pm
Posts: 1194
Location:
SC
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That projector is a 1280x720 projector so drop the "1920x1080_60" from your modes line.
Your best connection would be using a DVI to HDMI cable like this: http://www.monoprice.com/products/produ ... 1&format=2
Depending on the length of your run you might need to get a 24awg or 22awg cable.
Britney
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Gibble
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Posted: Mon Nov 12, 2007 11:59 pm |
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Joined: Thu Sep 30, 2004 12:26 pm
Posts: 468
Location:
Canada
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Hmm...still shows 4:3 
Code: # nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 1.0 (buildmeister@builder3) Mon Feb 26 23:38:46 PST 2007
#Section "DRI"
# Mode 0666
#EndSection
Section "ServerLayout"
# PS/2 Mouse not detected
# Serial Mouse not detected
Identifier "XFree86 Configured"
Screen 0 "Screen0" 0 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "USB Mouse" "CorePointer"
EndSection
Section "Files"
RgbPath "/usr/share/X11/rgb"
ModulePath "/usr/lib/xorg/modules"
FontPath "/usr/share/fonts/X11/misc:unscaled"
FontPath "/usr/share/fonts/X11/75dpi:unscaled"
FontPath "/usr/share/fonts/X11/100dpi:unscaled"
FontPath "/usr/share/fonts/X11/Type1"
EndSection
Section "Module"
# Comments: see http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=346408
#Load "int10" # Developer extension, usually not needed
#Load "extmod" # This is okay, but if you look into "man xorg.conf" you'll find option NOT to include DGA extension with extmod, and for a good reason.. DGA causes i
Load "dbe" # Double Buffering Extension, very important.
Load "glx" # GLX Extension.
Load "freetype" # Freetype fonts.
Load "type1" # Type 1 fonts
Load "record" # Developer extension, usually not needed
SubSection "extmod"
Option "omit xfree86-dga"
EndSubSection
EndSection
Section "ServerFlags"
Option "AllowMouseOpenFail" "true"
EndSection
Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
Option "CoreKeyboard"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "us"
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"
# The "magic" modelines borrowed from someone else
Identifier "Monitor0"
HorizSync 30.0 - 50.0
VertRefresh 60.0
#ModeLine "640x480" 25.2 640 664 760 800 480 491 493 525
#ModeLine "640x480@60" 24.1 640 672 760 792 480 490 495 505
Option "DPMS" "true"
Option "UseEdidDpi" "FALSE"
Option "DPI" "100 x 100"
EndSection
Section "Device"
#BusID "PCI:1:0:0"
### 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"
Driver "nvidia"
VendorName "All"
BoardName "All"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "1280x720_60" "720x480_60"
EndSubSection
SubSection "Display"
Depth 4
Modes "1280x720_60" "720x480_60"
EndSubSection
SubSection "Display"
Depth 8
Modes "1280x720_60" "720x480_60"
EndSubSection
SubSection "Display"
Depth 15
Modes "1280x720_60" "720x480_60"
EndSubSection
SubSection "Display"
Depth 16
Modes "1280x720_60" "720x480_60"
EndSubSection
SubSection "Display"
Depth 24
Modes "1280x720_60" "720x480_60"
EndSubSection
SubSection "Display"
Depth 32
Modes "1280x720_60" "720x480_60"
EndSubSection
EndSection
_________________
"The amount of time needed to solve a problem is inversely proportionate to the complexity of the solution" -- Me
KM: R5.5
CPU: Athlon 3800+
Vid: nvidia 7300GT
Snd: Chaintech av-710
Tuner: PVR150
HD: 1000gb sata + 750gb sata + 500gb usb
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brfransen
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Posted: Tue Nov 13, 2007 9:44 am |
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Joined: Fri Jul 21, 2006 11:12 pm
Posts: 1194
Location:
SC
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It probably has something to do with using s-video. Your video card is probably only outputting 800x600 or 640x480 over s-video. Look at your /var/log/Xorg.0.log file and determine what resolution is being used.
Britney
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Gibble
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Posted: Tue Nov 13, 2007 9:49 am |
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Joined: Thu Sep 30, 2004 12:26 pm
Posts: 468
Location:
Canada
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Code: (WW) NVIDIA(0): No valid modes for "1280x720_60"; removing.
(WW) NVIDIA(0): No valid modes for "720x480_60"; removing.
(WW) NVIDIA(0):
(WW) NVIDIA(0): Unable to validate any modes; falling back to the default mode
(WW) NVIDIA(0): "nvidia-auto-select".
(WW) NVIDIA(0):
(II) NVIDIA(0): Validated modes:
(II) NVIDIA(0): "nvidia-auto-select"
(II) NVIDIA(0): Virtual screen size determined to be 1024 x 768
Hmm, that's not good.
_________________
"The amount of time needed to solve a problem is inversely proportionate to the complexity of the solution" -- Me
KM: R5.5
CPU: Athlon 3800+
Vid: nvidia 7300GT
Snd: Chaintech av-710
Tuner: PVR150
HD: 1000gb sata + 750gb sata + 500gb usb
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Gibble
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Posted: Tue Nov 13, 2007 12:30 pm |
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Joined: Thu Sep 30, 2004 12:26 pm
Posts: 468
Location:
Canada
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I'm going to pick up a DVI->HDMI cable on my way home from work tonight.
Hopefully that helps out to some degree.
_________________
"The amount of time needed to solve a problem is inversely proportionate to the complexity of the solution" -- Me
KM: R5.5
CPU: Athlon 3800+
Vid: nvidia 7300GT
Snd: Chaintech av-710
Tuner: PVR150
HD: 1000gb sata + 750gb sata + 500gb usb
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Gibble
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Posted: Tue Nov 13, 2007 7:29 pm |
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Joined: Thu Sep 30, 2004 12:26 pm
Posts: 468
Location:
Canada
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It's all working great now 
Hooked up the HDMI cable and after a few moments (and a reboot) the projector saw the new source and wowee!
_________________
"The amount of time needed to solve a problem is inversely proportionate to the complexity of the solution" -- Me
KM: R5.5
CPU: Athlon 3800+
Vid: nvidia 7300GT
Snd: Chaintech av-710
Tuner: PVR150
HD: 1000gb sata + 750gb sata + 500gb usb
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tjc
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Posted: Tue Nov 13, 2007 8:08 pm |
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Joined: Thu Mar 25, 2004 11:00 am
Posts: 9551
Location:
Arlington, MA
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brfransen wrote: It probably has something to do with using s-video. Your video card is probably only outputting 800x600 or 640x480 over s-video.
Dead on. To be absolutely clear about this and make sure that there's no misunderstanding, S-Video does not support HDTV output! It's strictly SDTV only, meaning NTSC or PAL. Anything else you tell the video card (even 800x600) will get scaled to the NTSC or PAL standard resolutions for S-Video output.
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Gibble
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Posted: Tue Nov 13, 2007 8:39 pm |
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Joined: Thu Sep 30, 2004 12:26 pm
Posts: 468
Location:
Canada
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That is good to know
_________________
"The amount of time needed to solve a problem is inversely proportionate to the complexity of the solution" -- Me
KM: R5.5
CPU: Athlon 3800+
Vid: nvidia 7300GT
Snd: Chaintech av-710
Tuner: PVR150
HD: 1000gb sata + 750gb sata + 500gb usb
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