[mythtv-users] Mythtv on second X screen: several issues

Paul van Gerven baloedebruinebeer at gmail.com
Wed Nov 5 20:52:52 UTC 2008


Alright, that got me a bit further. When I start kwin on the tv, it says it
is already running on that screen. That' s odd, because I don' t get window
borders. Anyway, when I start it with the --replace option AND run Myth in a
window, the focus issue is resolved and I can watch live tv on the extra
screen. The quality however is quite poor, not nearly as what I am used to
in Feisty (which is excellent). I am not sure how to describe it, but the
picture seems slighty out of focus and vibrating a little. The colors seem
off too. Subtitles are hard to read. Any ideas?

On Tue, Nov 4, 2008 at 9:39 PM, Thomas Fjellstrom <tfjellstrom at shaw.ca>wrote:

> On Tuesday 04 November 2008, Paul van Gerven wrote:
> > OS: Kubuntu Intrepid with KDE 4.1
> > Mythtv-version: 0.21.0 from repositories
> > Setup: dual head. Monitor through Nvidia graphics card and tv hooked up
> via
> > Hauppauge 350 and ivtv framebuffer
> >
> > As I tried to upgrade my Kubuntu Feisty installation to Intrepid, I
> > discovered that KDE 4 does not support multiple screens. As a result I
> get
> > Plasma running on my monitor, but a black additional X screen on my tv on
> > which I can move around the typical ugly X cursor. In itself, this is not
> a
> > problem, as I can run applications on the tv using DISPLAY=:0.1. This
> > works, except I get no window borders, telling me kwin really isn't
> running
> > on that screen. For running Mythtv this still is no problem however.
> >
> > The problems start when I for example run the 'appearance' submenu in
> > setup, which after completion reloads the interface (prescaling...).
> After
> > this Mythtv is unresponsive. I am thinking this is a focus issue.
> >
> > The bigger problem is that Mythtv crashes when I try to watch live tv.
> The
> > last lines from the output from the -v all option are:
> >
> > 2008-11-04 21:05:42.163 VideoOutputXv: ctor
> > 2008-11-04 21:05:42.163 AO: 24224 bytes free on soundcard
> > 2008-11-04 21:05:42.165 XOff: 0, YOff: 0
> > 2008-11-04 21:05:42.165 VDP: LoadBestPreferences(720x576, 60)
> > 2008-11-04 21:05:42.165 Snapping width to avoid scaling: width: 720,
> left:
> > -10
> > 2008-11-04 21:05:42.165 Display Rect  left: -10, top: 0, width: 720,
> > height: 540, aspect: 1.33333
> > 2008-11-04 21:05:42.165 AO: 24624 bytes free on soundcard
> > 2008-11-04 21:05:42.165 Video Rect    left: 0, top: 0, width: 720,
> height:
> > 576, aspect: 1.33333
> > 2008-11-04 21:05:42.166 MSqlQuery: SELECT data FROM settings WHERE value
> =
> > 'GuiResolution' AND hostname = 'snotrochel' ;
> > 2008-11-04 21:05:42.166 MSqlQuery: SELECT data FROM settings WHERE value
> =
> > 'GuiResolution' AND hostname IS NULL;
> > 2008-11-04 21:05:42.166 VideoOutputXv: Pixel dimensions: Screen 0x0,
> window
> > 700x540
> > 2008-11-04 21:05:42.167 VideoOutputXv: Estimated display dimensions:
> > 191x152 mm  Aspect: 1.25658
> > Floating point exception
> >
> > I can watch live tv on my monitor.
> >
> > So, any ideas what's going on?
>
> Well that floating point exception is likely a divide by zero. see the
> "Pixel
> dimentions" where it says "Screen 0x0".
>
> Try launching a wm on that second screen. Usually you need one wm per X
> server+screen. You could launch kwin on that screen if you wanted, but
> maybe
> it'd be better to start a slimmer wm like twm or something.
>
> --
> Thomas Fjellstrom
> tfjellstrom at shaw.ca
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
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