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motd2k · 2009-03-13, 16:20

The options are important too. The modelines, well tbh i cheated and just downloaded some - they likely do not produce pixel-perfect images but i dont care.

My scaler can give me the information needed to write the modelines, by adjusting suitable test-images until everything is perfect, a process known as calibration, for which people pay alot of money.

Haggy · (This post was last modified: 2009-03-13, 16:52 by motd2k.)

The xorg.conf options look mostely the same as mine - except for the modeline stuff. I'll have a look after this. Meanwhile some lines from Xorg.0.log:

PHP Code:
(**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
(==) NVIDIA(0): RGB weight 888
(==) NVIDIA(0): Default visual is TrueColor
(==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
(**) NVIDIA(0): Option "NoFlip" "True"
(**) NVIDIA(0): Option "NoLogo" "True"
(**) NVIDIA(0): Option "NvAGP" "1"
(**) NVIDIA(0): Option "RenderAccel" "True"
(**) NVIDIA(0): Option "TwinView" "False"
(**) NVIDIA(0): Option "ExactModeTimingsDVI" "True"
(**) NVIDIA(0): Option "Coolbits" "1"
(**) NVIDIA(0): Option "TripleBuffer" "True"
(**) NVIDIA(0): Option "UseEvents" "True"
(**) NVIDIA(0): Option "AddARGBGLXVisuals" "True"
(**) NVIDIA(0): Option "DamageEvents" "True"
(**) NVIDIA(0): Option "FlatPanelProperties" "Scaling = Native"
(**) NVIDIA(0): Option "DynamicTwinView" "False"
(**) NVIDIA(0): Option "PixmapCacheSize" "1000000"
(**) NVIDIA(0): Option "AllowSHMPixmaps" "0"
(**) NVIDIA(0): OpenGL flipping disabled
(**) NVIDIA(0): Enabling RENDER acceleration
(**) NVIDIA(0): Use of NVIDIA internal AGP requested
(II) NVIDIA(0): NVIDIA GPU GeForce 8300 (C77) at PCI:2:0:0 (GPU-0)
(--) NVIDIA(0): Memory: 524288 kBytes
(--) NVIDIA(0): VideoBIOS: 62.77.2f.00.00
(--) NVIDIA(0): Interlaced video modes are supported on this GPU
(--) NVIDIA(0): Connected display device(s) on GeForce 8300 at PCI:2:0:0:
(--) NVIDIA(0):     SONY TV XV (DFP-0)
(--) NVIDIA(0): SONY TV XV (DFP-0): 165.0 MHz maximum pixel clock
(--) NVIDIA(0): SONY TV XV (DFP-0): Internal Single Link TMDS
(WW) NVIDIA(0): The EDID for SONY TV XV (DFP-0) contradicts itself: mode
(WW) NVIDIA(0):     "1920x1080" is specified in the EDID; however, the EDID's
(WW) NVIDIA(0):     valid VertRefresh range (48.000-62.000 Hz) would exclude
(WW) NVIDIA(0):     this mode's VertRefresh (24.0 Hz); ignoring VertRefresh
(WW) NVIDIA(0):     check for mode "1920x1080".
(WW) NVIDIA(0): The EDID for SONY TV XV (DFP-0) contradicts itself: mode
(WW) NVIDIA(0):     "1920x1080" is specified in the EDID; however, the EDID's
(WW) NVIDIA(0):     valid VertRefresh range (48.000-62.000 Hz) would exclude
(WW) NVIDIA(0):     this mode's VertRefresh (24.0 Hz); ignoring VertRefresh
(WW) NVIDIA(0):     check for mode "1920x1080".
(II) NVIDIA(0): Assigned Display Device: DFP-0
(==) NVIDIA(0): 
(==) NVIDIA(0): No modes were requested; the default mode "nvidia-auto-select"
(==) NVIDIA(0):     will be used as the requested mode.
(==) NVIDIA(0): 

As you can see, the driver even complains about incompatible edid information on the tv set. i think this perfectly fits the issue everybody's seeing.

Haggy · 2009-03-13, 16:49

Hehe - seems like it is as easy as this:

Code:
haggy@aereogramme /var/tmp $ gtf 1920 1080 50

  # 1920x1080 @ 50.00 Hz (GTF) hsync: 55.60 kHz; pclk: 141.45 MHz

  Modeline "1920x1080_50.00"  141.45  1920 2032 2232 2544  1080 1081 1084 1112  -HSync +Vsync

or to try this at home:

Code:
gtf <horizontal_res> <vertical_res> <refresh_rate>

motd2k · 2009-03-13, 16:53

For posterity, here's mine...

PHP Code:
(**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
(==) NVIDIA(0): RGB weight 888
(==) NVIDIA(0): Default visual is TrueColor
(==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
(**) NVIDIA(0): Option "ExactModeTimingsDVI" "True"
(**) NVIDIA(0): Option "UseDisplayDevice" "DFP-0"
(**) NVIDIA(0): Option "AddARGBGLXVisuals" "True"
(**) NVIDIA(0): Option "ModeValidation" "DFP-0: NoMaxSizeCheck, NoHorizSyncCheck, NoVertRefreshCheck, AllowNon60HzDFPModes, NoMaxPClkCheck, NoVesaModes, NoXServerModes, NoPredefinedModes"
(**) NVIDIA(0): Option "FlatPanelProperties" "Scaling = Native"
(**) NVIDIA(0): Option "DynamicTwinView" "false"
(**) NVIDIA(0): Enabling RENDER acceleration
(II) NVIDIA(0): NVIDIA GPU GeForce 9400 GT (G96) at PCI:1:0:0 (GPU-0)
(--) NVIDIA(0): Memory: 524288 kBytes
(--) NVIDIA(0): VideoBIOS: 62.94.4b.00.77
(II) NVIDIA(0): Detected PCI Express Link width: 16X
(--) NVIDIA(0): Interlaced video modes are supported on this GPU
(--) NVIDIA(0): Connected display device(s) on GeForce 9400 GT at PCI:1:0:0:
(--) NVIDIA(0):     Sony SDM-P234 (DFP-0)
(--) NVIDIA(0): Sony SDM-P234 (DFP-0): 330.0 MHz maximum pixel clock
(--) NVIDIA(0): Sony SDM-P234 (DFP-0): Internal Dual Link TMDS
(II) NVIDIA(0): Mode Validation Overrides for Sony SDM-P234 (DFP-0):
(II) NVIDIA(0):     AllowNon60HzDFPModes
(II) NVIDIA(0):     NoMaxPClkCheck
(II) NVIDIA(0):     NoMaxSizeCheck
(II) NVIDIA(0):     NoHorizSyncCheck
(II) NVIDIA(0):     NoVertRefreshCheck
(II) NVIDIA(0):     NoVesaModes
(II) NVIDIA(0):     NoXServerModes
(II) NVIDIA(0):     NoPredefinedModes
(II) NVIDIA(0): Assigned Display Device: DFP-0
(==) NVIDIA(0): 
(==) NVIDIA(0): No modes were requested; the default mode "nvidia-auto-select"
(==) NVIDIA(0):     will be used as the requested mode.
(==) NVIDIA(0): 
(II) NVIDIA(0): Validated modes:
(II) NVIDIA(0):     "nvidia-auto-select"
(II) NVIDIA(0): Virtual screen size determined to be 1920 x 1200
(--) NVIDIA(0): DPI set to (97, 98); computed from "UseEdidDpi" X config
(--) NVIDIA(0):     option
(WW) NVIDIA(0): 32-bit ARGB GLX visuals require the Composite extension.
(WW) NVIDIA(0): Disabling 32-bit ARGB GLX visuals. 

motd2k · 2009-03-13, 16:54

Haggy Wrote:Hehe - seems like it is as easy as this:

Code:
haggy@aereogramme /var/tmp $ gtf 1920 1080 50 # 1920x1080 @ 50.00 Hz (GTF) hsync: 55.60 kHz; pclk: 141.45 MHz Modeline "1920x1080_50.00" 141.45 1920 2032 2232 2544 1080 1081 1084 1112 -HSync +Vsync

or to try this at home:

Code:
gtf <horizontal_res> <vertical_res> <refresh_rate>

Learn something everyday! Thanks Smile

Haggy · 2009-03-13, 17:01

In nearly ten years of linux i NEVER stumbled upon this handy tool...
Would you mind posting some Xorg.log lines from your nvidia 8200 machine as this also seems to make a difference. Most of the issues seem to come from 8200/8300 GPUs.

**xnappo** · 2009-03-13, 17:46

motd2k Wrote:Learn something everyday! Thanks

Thanks for the tips - how do you launch XBMC? I am currently using my .xsession to do it AND am running --standalone. I think that this is not appropriate for using modelines right? How do you autostart XBMC at boot time?

Thanks,
xnappo

motd2k · 2009-03-13, 17:48

xnappo,

i'm unsure whether it will work in the way you describe or not. I simply add an entry to System/Prefs/Sessions

Haggy · 2009-03-13, 17:52

Up to now i start via inittab and xinitrc:

/etc/inittab:

Code:
x:5:once:/bin/su haggy -l -c "/bin/bash --login -c startx >/dev/null 2>&1"

and .xinitrc:

Code:
exec nvidia-settings --load-config-only &

exec ck-launch-session xbmc -fs --standalone

but i think i have to change this using modelines - at least --standalone has to go i think.

motd2k · 2009-03-13, 17:54

Unfortunately i dont think gtf is reliable - its given me the exact same modeline for both my Sony monitor and 42" TV.

Better than nothing though, but I suspect it wont give proper 1:1 pixel mapping and whatnot.

motd2k · 2009-03-13, 17:58

This is from my 8200...

PHP Code:
(**) NVIDIA(0): Depth 24, (--) framebuffer bpp 32
(==) NVIDIA(0): RGB weight 888
(==) NVIDIA(0): Default visual is TrueColor
(==) NVIDIA(0): Using gamma correction (1.0, 1.0, 1.0)
(**) NVIDIA(0): Option "ExactModeTimingsDVI" "True"
(**) NVIDIA(0): Option "UseDisplayDevice" "DFP-0"
(**) NVIDIA(0): Option "AddARGBGLXVisuals" "True"
(**) NVIDIA(0): Option "ModeValidation" "DFP-0: NoMaxSizeCheck, NoHorizSyncCheck, NoVertRefreshCheck, AllowNon60HzDFPModes, NoMaxPClkCheck, NoVesaModes, NoXServerModes, NoPredefinedModes"
(**) NVIDIA(0): Option "FlatPanelProperties" "Scaling = Native"
(**) NVIDIA(0): Option "DynamicTwinView" "false"
(**) NVIDIA(0): Enabling RENDER acceleration
(II) NVIDIA(0): NVIDIA GPU GeForce 8200 (C77) at PCI:2:0:0 (GPU-0)
(--) NVIDIA(0): Memory: 524288 kBytes
(--) NVIDIA(0): VideoBIOS: 62.77.24.00.08
(--) NVIDIA(0): Interlaced video modes are supported on this GPU
(--) NVIDIA(0): Connected display device(s) on GeForce 8200 at PCI:2:0:0:
(--) NVIDIA(0):     OEM 37'' TFT-TV (DFP-0)
(--) NVIDIA(0): OEM 37'' TFT-TV (DFP-0): 165.0 MHz maximum pixel clock
(--) NVIDIA(0): OEM 37'' TFT-TV (DFP-0): Internal Single Link TMDS
(II) NVIDIA(0): Mode Validation Overrides for OEM 37'' TFT-TV (DFP-0):
(II) NVIDIA(0):     AllowNon60HzDFPModes
(II) NVIDIA(0):     NoMaxPClkCheck
(II) NVIDIA(0):     NoMaxSizeCheck
(II) NVIDIA(0):     NoHorizSyncCheck
(II) NVIDIA(0):     NoVertRefreshCheck
(II) NVIDIA(0):     NoVesaModes
(II) NVIDIA(0):     NoXServerModes
(II) NVIDIA(0):     NoPredefinedModes
(II) NVIDIA(0): Assigned Display Device: DFP-0
(==) NVIDIA(0): 
(==) NVIDIA(0): No modes were requested; the default mode "nvidia-auto-select"
(==) NVIDIA(0):     will be used as the requested mode.
(==) NVIDIA(0): 
(II) NVIDIA(0): Validated modes:
(II) NVIDIA(0):     "nvidia-auto-select"
(II) NVIDIA(0): Virtual screen size determined to be 1920 x 1080
(--) NVIDIA(0): DPI set to (304, 304); computed from "UseEdidDpi" X config
(--) NVIDIA(0):     option
(WW) NVIDIA(0): 32-bit ARGB GLX visuals require the Composite extension.
(WW) NVIDIA(0): Disabling 32-bit ARGB GLX visuals.
(--) Depth 24 pixmap format is 32 bpp
(II) do I need RAC?  No, I don't. 

**xnappo** · 2009-03-13, 17:58

motd2k Wrote:xnappo,

i'm unsure whether it will work in the way you describe or not. I simply add an entry to System/Prefs/Sessions

So your xbmc command is simply 'xbmc.bin'. I am using '/usr/share/xbmc/xbmc.bin -q --standalone' . I don't have Gnome or anything installed - just using the minimum install - so I think in that case to match your setup I need to change my .xsession to start X, and then launch xbmc without --standalone..?

Thanks,
xnappo

Haggy · 2009-03-13, 18:01

what does '-q' mean?

**xnappo** · 2009-03-13, 18:04

Haggy Wrote:what does '-q' mean?

I have no idea, I just followed this guide:
http://wiki.xbmc.org/?title=HOW-TO:_Inst...ep-by-step

I also noticed this line in motd2k's .xorg:
Option "ModeValidation" "DFP-0: NoMaxSizeCheck, NoHorizSyncCheck, NoVertRefreshCheck, AllowNon60HzDFPModes, NoMaxPClkCheck, NoVesaModes, NoXServerModes, NoPredefinedModes"

I think that might be important.

xnappo

Haggy · 2009-03-13, 18:04

motd2k Wrote:Unfortunately i dont think gtf is reliable - its given me the exact same modeline for both my Sony monitor and 42" TV.

I don't think gtf takes the actual screen into count as it is simply a nicer interface to a calculator :-)

every screen should handle those computed modelines well or am i wrong?