[mythtv-users] Horizontal seam in picture - contradicting EDID

EJS ejshoor at yahoo.com
Thu Jul 17 00:17:22 UTC 2008


Hello,

I am making my first foray into HD and trying to set up a new flat screen, a Samsung LNT4069FX. Everything looks great except there is a horizontal distortion that becomes more aparent during fast moving scenes. It looks like there is a horizontal line where everything above the line is offset slightly to the right of everything below the line. It looks kind of like a seam in the picture. The line seems to move slowly down the screen from top to bottom until it recycles. Again, it is only visible during scenes with movement (the menus look fine).

I have tried the TV settings without much luck, at this point I am wondering if the problem is with the X settings since it seems like X is having problems with the EDID (see below).

Any help would be greatly appreciated!

Thanks,
J

Excerpt from xorg.conf:
Section "Monitor"
        Identifier "Monitor0"
        Option "UseEdidDpi" "FALSE'
        Option "DPI" "100 x 100"
EndSection

Section "Device"
        Identifier  "Videocard0"
        Driver      "nvidia"
EndSection

Section "Screen"
        Identifier "Screen0"
        Device     "Videocard0"
        Monitor    "Monitor0"
        DefaultDepth     24
        SubSection "Display"
                Viewport   0 0
                Depth     24
        EndSubSection
EndSection

Some interesting messages from xorg.0.log:
(--) NVIDIA(0): VideoBIOS: 05.73.32.09.21
(--) NVIDIA(0): Interlaced video modes are supported on this GPU
(--) NVIDIA(0): Connected display device(s) on GeForce 7100 / NVIDIA nForce
(--) NVIDIA(0):     630i at PCI:0:16:0:
(--) NVIDIA(0):     SAMSUNG (DFP-0)
(--) NVIDIA(0): SAMSUNG (DFP-0): 165.0 MHz maximum pixel clock
(--) NVIDIA(0): SAMSUNG (DFP-0): Internal Single Link TMDS
(WW) NVIDIA(0): The EDID for SAMSUNG (DFP-0) contradicts itself: mode
(WW) NVIDIA(0):     "1920x1080" is specified in the EDID; however, the EDID's
(WW) NVIDIA(0):     valid HorizSync range (30.000-70.000 kHz) would exclude
(WW) NVIDIA(0):     this mode's HorizSync (27.0 kHz); ignoring HorizSync check
(WW) NVIDIA(0):     for mode "1920x1080".
(WW) NVIDIA(0): The EDID for SAMSUNG (DFP-0) contradicts itself: mode
(WW) NVIDIA(0):     "1920x1080" is specified in the EDID; however, the EDID's
(WW) NVIDIA(0):     valid VertRefresh range (59.000-71.000 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 SAMSUNG (DFP-0) contradicts itself: mode
(WW) NVIDIA(0):     "1920x1080" is specified in the EDID; however, the EDID's
(WW) NVIDIA(0):     valid VertRefresh range (59.000-71.000 Hz) would exclude
(WW) NVIDIA(0):     this mode's VertRefresh (30.0 Hz); ignoring VertRefresh
(WW) NVIDIA(0):     check for mode "1920x1080".
(WW) NVIDIA(0): The EDID for SAMSUNG (DFP-0) contradicts itself: mode
(WW) NVIDIA(0):     "1920x1080" is specified in the EDID; however, the EDID's
(WW) NVIDIA(0):     valid HorizSync range (30.000-70.000 kHz) would exclude
(WW) NVIDIA(0):     this mode's HorizSync (27.0 kHz); ignoring HorizSync check
(WW) NVIDIA(0):     for mode "1920x1080".
(WW) NVIDIA(0): The EDID for SAMSUNG (DFP-0) contradicts itself: mode
(WW) NVIDIA(0):     "1920x1080" is specified in the EDID; however, the EDID's
(WW) NVIDIA(0):     valid VertRefresh range (59.000-71.000 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 SAMSUNG (DFP-0) contradicts itself: mode
(WW) NVIDIA(0):     "1920x1080" is specified in the EDID; however, the EDID's
(WW) NVIDIA(0):     valid VertRefresh range (59.000-71.000 Hz) would exclude
(WW) NVIDIA(0):     this mode's VertRefresh (30.0 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):
(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 (100, 100); computed from "DPI" X config option





      


More information about the mythtv-users mailing list