[mythtv-users] modelines and NVIDIA binary driver
Mike Miller
mdm at torg.org
Sat Nov 25 16:31:12 UTC 2006
The DVI to HDMI cable has nothing to do with Modelines working or not.
There is a definite bug in the NVIDIA driver with interlaced modes.
This is what happens in my case:
1) The NVIDIA driver loads and reads the EDID
2) The EDID gives the max size to 540
3) The NVIDIA driver reads the Modeline:
ModeLine "ATSC-1080-60i" 182.28 1920 2008 2052 2200 540 542 547
562 +HSync +vsync Interlace
4) The NVIDIA driver loads that line and creates a Bounding Box for the
size (pans the screen half on top and half on bottom)
This modeline is IDENTICAL to what it reads from the EDID:
(this is from EDID not from my Modeline)
(II) NVIDIA(0): --- Building ModePool for JVC HD-61Z575A (DFP-0) ---
(II) NVIDIA(0): Validating Mode "1920x1080":
(II) NVIDIA(0): 1920 x 540 @ 60 Hz
(II) NVIDIA(0): Mode Source: EDID
(II) NVIDIA(0): Pixel Clock : 74.25 MHz
(II) NVIDIA(0): HRes, HSyncStart : 1920, 2008
(II) NVIDIA(0): HSyncEnd, HTotal : 2052, 2200
(II) NVIDIA(0): VRes, VSyncStart : 540, 542
(II) NVIDIA(0): VSyncEnd, VTotal : 547, 562
(II) NVIDIA(0): H/V Polarity : +/+
(II) NVIDIA(0): Extra : Interlaced
(II) NVIDIA(0): Mode is valid.
(II) NVIDIA(0): Validating Mode "ATSC-1080-60i":
(II) NVIDIA(0): 1920 x 540 @ 60 Hz
(II) NVIDIA(0): Mode Source: Custom ModeLine
(II) NVIDIA(0): Pixel Clock : 74.25 MHz
(II) NVIDIA(0): HRes, HSyncStart : 1920, 2008
(II) NVIDIA(0): HSyncEnd, HTotal : 2052, 2200
(II) NVIDIA(0): VRes, VSyncStart : 540, 542
(II) NVIDIA(0): VSyncEnd, VTotal : 547, 562
(II) NVIDIA(0): H/V Polarity : +/+
(II) NVIDIA(0): Extra : Interlaced
(II) NVIDIA(0): Mode is valid.
(II) NVIDIA(0): MetaMode "1920x1080":
(II) NVIDIA(0): Bounding Box: [0, 0, 1920, 1080]
(II) NVIDIA(0): JVC HD-61Z575A (DFP-0): "1920x1080"
(II) NVIDIA(0): Size : 1920 x 1080
(II) NVIDIA(0): Offset : +0 +0
(II) NVIDIA(0): Panning Domain: @ 1920 x 1080
(II) NVIDIA(0): Position : [0, 0, 1920, 1080]
(II) NVIDIA(0): MetaMode "ATSC-1080-60i":
(II) NVIDIA(0): Bounding Box: [0, 0, 1920, 540]
(II) NVIDIA(0): JVC HD-61Z575A (DFP-0): "ATSC-1080-60i"
(II) NVIDIA(0): Size : 1920 x 540
(II) NVIDIA(0): Offset : +0 +0
(II) NVIDIA(0): Panning Domain: @ 1920 x 540
(II) NVIDIA(0): Position : [0, 0, 1920, 540]
It is as if the NVIDIA driver does not realize an interlaced mode is 2x
the vertical size.
My *solution* is to ignore my modeline and take what the EDID tells me
is the proper mode. Of course this means my TV must be on when I start
X but that is a minor inconvenience.
If you want to see what your X server does run it with "X -verbose 6 >
X.log 2>&1 &". You will need to kill the server (its running with no
display manger). You can "kill -TERM" the server or ctrl-alt-bksp to
get out.
> I'm using DVI -> HDMI, that could be why. Looks like I need to figure
> out a way for it to work with the ModeLine, at the moment when I
> change the ModeLine parameters it's completelt ignored.
> I'd really like to get a working 1920x1080i ModeLine with no overscan.
>
> Thanks
>
> On 11/24/06, *Brian Wood* <beww at beww.org <mailto:beww at beww.org>> wrote:
>
>
> On Nov 24, 2006, at 12:26 AM, nik gibson wrote:
>
> > Under what menu's do you find the overscan options in nvidia-
> > settings? I've gone through every configuration option and I don't
> > have anything related to overscan.
> >
>
> What output of your video card are you using ? I seem to recall that
> I only got those settings as options when I was using a TV-Out, at
> which point it showed up when selected under "Display Device". The
> selections weren't offered when I selected the monitor connected to
> the VGA output.
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