[mythtv-users] Resetting NVIDIA Video Configuration (xorg.conf)

Stephen Worthington stephen_agent at jsw.gen.nz
Fri Feb 22 13:57:17 UTC 2019

On Fri, 22 Feb 2019 08:51:35 -0500, you wrote:

>Hello all.
>I'm hoping to mine the collective knowledge of the mailing list to come 
>up with a reliable configuration for my system. Right now I'm having 
>some issues with tearing on playback. I've updated the OS and drivers 
>and fiddled with my configuration files to the point where I'm not too 
>sure if I've done more damage to my system than good! Hopefully there's 
>an established baseline configuration out there for my set up that I can 
>use as a reset.
>- ASUS P8Z77-V LK motherboard with Intel i5-3470 CPU and 8GB RAM
>- ASUS GeForce GT 640 video card
>- Fedora 29 (4.20.8-200.fc29.x86_64)
>- mythtv-29.1-25.39.20181004git74fff5c285.fc29.x86_64 (from RPM Fusion 
>- NVIDIA 410.93 drivers (directly from NVIDIA web site)
>I've got an HDMI connection from the video card to the monitor for 1080p 
>video only (audio is handled via a receiver connected over an optical 
>MythTV has been configured to use the VDPAU High Quality playback 
>profile. This problem is not specific to VDPAU as the tearing is present 
>to various degrees regardless of what playback profile I use. Log files 
>don't seem to indicate an errors loading drivers or during playback as 
>far as I can tell.
>I've tried resetting xorg.conf using the nvidia-xconfig utility but the 
>tearing problem hasn't cleared up. I'm thinking this is a pretty basic 
>set up and that I've simply missed a key setting (or three).
>Can anyone with the same/similar set up share their xorg.conf and/or 
>xorg.conf.d/* files with me?

In the past, the turning off the Composite option has helped with
tearing.  I have this in xorg.conf for my Nvidia GT220:

Section "Extensions"
        Option "Composite"      "Disable"

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