[mythtv-users] mythtv-users Digest, Vol 60, Issue 67

[Justin Nolan]

> Good morning all,
>
> I just updated my Mythtv system to .21 (from the Ubuntu Gutsy  
> Backports
> repository) and I'm having mixed results. On one of my frontends, most
> everything seems to work, but graphics on the screen are "shaky" in  
> some
> cases. Specifically, when watching news shows, the on-screen text and
> graphics look like the edges are moving up and down a few pixels. It  
> seems
> to be independent of the color, and display (this is on a dual head  
> system,
> and I switched monitors to check that). This is running on Ubuntu
> 7.10i386, Pentium D
> 3.0ghz, nVidia GeForce 7900GT, 3.0GB DDR2 667mhz. This machine does  
> not use
> XVMC.
>
> On my other frontend, I'm having a different problem. On this  
> machine, I'm
> able to watch videos just like I could before (using the Internal  
> Player)
> but Live TV and recordings peg my processor and everything slows to  
> a crawl.
> Audio skips, and frames are dropped. This machine runs Mythbuntu P4  
> 1.7ghz,
> 1.25gb DDR ram, nVidia FX5200 and runs as a dedicated front end. I  
> have it
> set to use XVMC.
>
> I'm recording SD Analog Cable from 2 PVR-500's and 1 PVR-250.  
> Connection is
> via 100mbit LAN.
>
> Both machines worked well under MythTV .20.2, and I have not changed  
> any
> configuration files. I'm running the latest nVidia drivers from the  
> Ubuntu
> Repositories (which I know have issues in some cases, but nothing to
> indicate these problems as far as I know). Everything worked well  
> before the
> update (well, there were occasional frontend crashes, etc. but it  
> worked
> well enough) and all I did was enable the Gutsy Backport  
> repositories and
> allowed the machines to update themselves. I had to manually upgrade  
> the
> video plugin, since it replaces the DVD plugin (it didn't do that
> automatically for me). Otherwise, I don't see where I could have
> specifically made a change to cause these problems.
>
> I recalled seeing a thread a few weeks ago about high CPU loads, but  
> the end
> of that concluded with installing the latest SVN build, which I  
> would assume
> the .21 release would include any benefits included there.
>
> I guess that got a little long....sorry if that's too much detail.  
> Any help
> would be appreciated.
>
> - Josh

FWIW, I'm having the same exact "shaky" display issues on my frontend,  
which is on the second display (seperate x window). I have the gui  
dimensions and offset hard-set in the apperance settings, yet it  
drifts almost every time I switch between television and the menu.  
I'll set it up perfectly so it fills the entire screen w/ little  
overscan, and a half hour later the offset is randomly 20 or so pixels  
off. It also flickers a little bit going between the menu and  
television (desktop visible).

I don't know if these are 0.21 related issues, older mythtv issues, or  
my graphics card. I just got this graphics card and it's my first  
experience actually using mythtv on my main television.

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