[mythtv-users] Nvidia Settings (was Super Frustration)

[Scott Minneman]

Would you mind sending me the line from your .nvidia-settings-rc file 
for sharpness?  Mine has TVFlickerFilter, TVSaturation, etc, but nothing 
for sharpness.


Ryan A. Carris wrote:

>On Fri, 25 Feb 2005 11:56:59 -0800, Bruce Markey <bjm at lvcm.com> wrote:
>(snip) 
>  
>
>>I decided to look into the alignment problem. In a long afternoon
>>of divide and conquer, I found a magic overscan value that put a
>>480 pixel image in 480 scan lines for the 4xxx driver. Of course,
>>the overscan changed with the 6xxx drivers and are now controlled
>>by the "nvidia-settings" tool. If the overscan value is set to 250
>>(actually anywhere from 243-250) it is pretty darn close if not
>>exactly 480 pixels on 480 scan lines. This means that by not scaling
>>and with accurate frame timing, only data from one of the recoded
>>fields is displayed per field refresh.
>>    
>>
>(snip)
>
>Based on your suggestions, I played around with my settings last night
>to see if I could improve on the extremely poor s-quality I'm getting
>out of the FX5600XT (possibly a Gigibyte card) I put in last week. 
>Compared to the onboard Nforce2 quality I was getting, it sucked!  So,
>beware, I believe that it varies from manufacturer to manufacturer.
>and was really happy with the results, so I wanted to respond, so
>maybe more people would see your advice.
>
>I'm not sure I could tell much difference by setting the overscan to
>250.  It was just very slight on my card/tv.  But, setting this made
>me adjust my GUI size IN MYTH  SETTINGS/APPEARANCE down to ~540x750
>and set the offsets to X = 15 Y = 20 so that everything stayed on the
>screen.  Not a big deal.
>
>  
>
>>In "nvidia-settings", set the flicker filter to 1, and sharpness to
>>about 6 to 8. Set "TV Saturation" to about 172 to 178. The last
>>one is important. I've found that both nVidia and ATI tvout tend
>>to bleed bright reds when the TV is set the same as for a TV signal.
>>The best solution I've found is to turn down the color on the TV set
>>to just below the point where reds pulsate, glow or bleed then turn
>>up this nvidia saturation control. Recording with higher sat would
>>distort the colors in the recording and the Xv saturation seems to
>>cause distortion also. However, the nvidia setting gives colors more
>>body without distortion until you are at a point where the colors are
>>cleanly overdriven.
>>    
>>
>(snip)
>  
>
>>--  bjm
>>    
>>
>
>Now the Flicker and Sharpness adjustment made a BIG difference.  I'm
>now convinced that lowering these settings is an absolute must. 
>Scrolling text used to be fuzzy, but now is crisp -- almost too much
>with a harsh edge. The Flicker Filter made the biggest difference.  I
>get a bit of flicker in the horizontal lines in the GUI, but that is
>expected on an interlaced TV.  To control this somewhat, I have my
>Flicker Filter set to ~12.
>
>Turning up the Saturation helped a little to improve the vibrancy, but
>this card isn't a good judge of color.  I have a new MSI FX5200 coming
>today from newegg; will play more this weekend.
>
>Thanks for the (as always) very good suggestions,
>
>-rac
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>  
>

-- 

Scott Minneman
J.D. Candidate, 2007
The George Washington University Law School