[mythtv-users] Video quality on 0.28 worse than it was on 0.21

[Allen Edwards]

I made the change to xorg.conf and it made no difference.

Also, what's with this?
*sudo: nvidia-xconfig: command not found*

Might be part of the problem.

Again, everything is the same between the 8.04 disk and the 16.04 disk
except the nvidia support software doesn't run and the driver is much newer
(304 vs 180).

When I run nvidia-settings from a terminal on the computer I get this:

*$nvidia-settings*
*ERROR: Unable to load info from any available system*

Alen

On Thu, Aug 23, 2018 at 9:45 AM, Peter Bennett <pb.mythtv at gmail.com> wrote:

>
>
> On 08/23/2018 12:33 PM, Allen Edwards wrote:
>
>> Using the same settings on the new 16.04 install I have bad tearing when
>> the boards pan on Jeopardy where I did not on 8.04.  As far as I can tell,
>> everything is the same. I still have the 8.04 HD, which has serious issues
>> but will play so I am able to compare the silky smooth performance of 0.21
>> to the jerky performance of 0.28
>>
>> With Nvidia it helps to turn off composite to prevent tearing.
> sudo nvidia-xconfig --no-composite
> or else add this to your xorg.conf.
> Section "Extensions"
>     Option             "Composite" "Disable"
> EndSection
>
> Note that turning off composite prevents Ubuntu unity desktop from
> working. I use xubuntu to avoid that problem.
>
> Most things are the same as described below.  The differences are that I
>> am aware of are that the new driver is 304 (which I confirmed is in use
>> with additional-drivers) and the 8.04 system used 180.
>>
>> The other difference is that on the 16.04 system the nvidia-settings icon
>> does not launch anything. It is just like clicking on air. I Googled this
>> and found several people with the same problem and nobody with an answer.
>> Maybe the problems are related
>>
>> The hardware is a M3A with AMI 5400, Geforce 6200 LE video card.
>>
>> I put the same xorg.conf file in /usr/share/X11/xorg.conf
>>
>> I created the same custom playback profile
>> If rez > 0 0 -> ffmpeg & XVideo
>> xv-blit softblend
>> Bob(2x) Linear blend
>>
>>
> For general picture quality you would do better to use VDPAU slim playback
> profile if possible, or failing that, use OpenGL Slim.
>
> I have dual displays only one has myth.  Here is its xorg.conf section
>> from the 2008 file I transferred over to the new disk.  I rebooted after
>> loading the xorg.conf file
>>
>> Section "Screen"
>>         Identifier      "Screen1"
>>         Device          "Videocard1"
>>         Monitor         "MythMonitor"
>>         Option          "TwinView"      "0"
>>         Option          "metamodes"     "DFP: 1280x720_60 +0+0"
>>         Option          "AddARGBGLXVisuals"     "True"
>>         # this next line will be ignored with the TV and the default,
>> auto will be used
>>         SubSection "Display"
>>                 Depth   24
>>         EndSubSection
>>         Defaultdepth    24
>> EndSection
>>
>>
>> This list has been tremendously helpful on my other problems so I am
>> hopeful I don't have to go back to 8.04 although at this point I can make a
>> case for doing that.
>>
>> Allen
>>
>>
>>
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