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

Allen Edwards allen.p.edwards at gmail.com
Sat Aug 25 15:51:55 UTC 2018


On Sat, Aug 25, 2018 at 8:24 AM, Stephen Worthington <
stephen_agent at jsw.gen.nz> wrote:

> On Sat, 25 Aug 2018 06:15:37 -0700, you wrote:
>
> >On Fri, Aug 24, 2018 at 10:10 AM, Stephen Worthington <
> >stephen_agent at jsw.gen.nz> wrote:
> >
> >> On Fri, 24 Aug 2018 09:57:42 -0700, you wrote:
> >>
> >>
> >>
> >> Take a look at /var/log/Xorg.0.log.  It may tell you why nouveau is
> >> still loading instead of Nvidia.  It is looking like the 304 drivers
> >> are not actually compatible with the 6200 card.
> >>
> >
> >allen at MythNew:~$ more /var/log/Xorg.0.log | grep nvidia
> >[    23.838] (II) LoadModule: "nvidia"
> >[    23.838] (WW) Warning, couldn't open module nvidia
> >[    23.838] (II) UnloadModule: "nvidia"
> >[    23.839] (II) Unloading nvidia
> >[    23.839] (EE) Failed to load module "nvidia" (module does not exist,
> 0)
> >[    23.839] (==) Matched nvidia as autoconfigured driver 0
> >[    23.839] (II) LoadModule: "nvidia"
> >[    23.839] (WW) Warning, couldn't open module nvidia
> >[    23.839] (II) UnloadModule: "nvidia"
> >[    23.839] (II) Unloading nvidia
> >[    23.839] (EE) Failed to load module "nvidia" (module does not exist,
> 0)
> >
> >Same output using the 8600 video card.  Perhaps the lack of the alias
> >statements in the auto generated nvidia 304 blacklist file has something
> to
> >do with it as the driver is called nvidia-304.
> >
> >Allen
>
> No, the name of the driver file does not have the version number in
> it.  For comparison, my mother's MythTV box uses the 304 drivers and
> this is what it shows when the driver loads correctly:
>
> [    28.886] (II) LoadModule: "nvidia"
> [    28.886] (II) Loading
> /usr/lib/x86_64-linux-gnu/xorg/extra-modules/nvidia_drv.so
> [    29.562] (II) Module nvidia: vendor="NVIDIA Corporation"
> [    29.562]    compiled for 4.0.2, module version = 1.0.0
> [    29.562]    Module class: X.Org Video Driver
> [    29.651] (II) LoadModule: "nouveau"
> [    29.701] (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so
> [    29.745] (II) Module nouveau: vendor="X.Org Foundation"
> [    29.745]    compiled for 1.18.1, module version = 1.0.12
> [    29.745]    Module class: X.Org Video Driver
> [    29.745]    ABI class: X.Org Video Driver, version 20.0
>
> So there is a fundamental problem here - the Nvidia drivers are not
> installed properly.  The Xorg driver file (nvidia_drv.so) is not
> loading.  So the logs to be looking at are the ones of the install of
> the Nvidia drivers.  Those are in /var/log/apt.  In there, the
> history.log file is what apt has done at the package level.  The
> term.log files are the output to the terminal of what happened as the
> packages were installed (or removed).  So look in the term.log files
> and find your last install of the Nvidia drivers and see if it shows
> what went wrong.
>
> I have never come across any problems like this since Nvidia drivers
> were made available in packages in the Ubuntu distro.  You normally
> either get an error message during the install of the packages, and
> the install fails, or the install works and the drivers work.
> _______________________________________________
>

Looks like the bug that John reported.

Error! Bad return status for module build on kernel: 4.15.0-32-generic
(i686)
Consult /var/lib/dkms/nvidia-304/304.137/build/make.log for more
information.

Looking at that log I see similar language as the bug report.

Allen
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