Re: [gentoo-user] Problem with xf86-video-ati & nvidia-drivers

[Michael Mol <mikemol@gmail.com>]

On Wed, Jul 20, 2011 at 10:29 AM, Stroller
<stroller@stellar.eclipse.co.uk> wrote:
>
> On 19 July 2011, at 20:41, Grant wrote:
>> ...
>> I found this:
>>
>> "We recommend using the Just Scan mode with 1080i and 1080p material,
>> which assures zero overscan and proper 1:1 pixel matching for this
>> 1080p display."
>>
>> http://reviews.cnet.com/flat-panel-tvs/lg-47lh90/4505-6482_7-33485570.html#reviewPage1
>>
>> Just Scan is what I've always used which has the ghosting problem.  I
>> think I'm back to square one.
>
> I think the Windows versions of the nVidia drivers have options to over- or under-scan.
>
> This compensates for (older?) TVs which have no way to switch to a "just scan" mode. So the graphics card will, I think, output a slightly over-sized picture, then the telly will scale it down a bit back to normal size. This will not produce a perfect picture, but if overscan on the TV cannot be disabled, then there is no better choice.
>
> Is it possible they have recently added this feature to the Linux nVidia driver?

Possibly related observation: On my 720p TV, if I output (via HDMI)
720p to it, I lose the outer ten or so pixels off of each side of the
screen. NVidia video card configuration tool indicated a higher
resolution was available, 13??x???, which resulted in a fine picture
with no missing pixels, once I switched to it. This was about a year
ago. (Can't easily test, now, because I no longer have a PC hooked up
to that TV)

-- 
:wq