[ tvtime-Bugs-977211 ] Random horizontal lines

Bugs item #977211, was opened at 2004-06-21 21:13
Message generated for change (Comment added) made by gbell12
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=506987&aid=977211&group_id=64301

Category: Output driver problems
Group: Open bugs in CVS tvtime
Status: Open
Resolution: None
Priority: 5
Submitted By: greg bell (gbell12)
Assigned to: Billy Biggs (vektor)
Summary: Random horizontal lines

Initial Comment:

I get random horizontal lines, >1 pixel wide when
viewing TV (coax).  Almost looks like static, except
Xawtv doesn't show it.  They're very fast.  I'm not
sure, but I think they may not always go all the way
across.

Oddly, I can't screen-capture the problem using
ImageMagick's "import" command - the resulting capture
is crystal clear.

Not sure what else to say since the output from -v is
so complete:

vtime -v
Running tvtime 0.9.12.
Reading configuration from /etc/tvtime/tvtime.xml
Reading configuration from /root/.tvtime/tvtime.xml
cpuinfo: CPU Pentium II (Klamath), family 6, model 3,
stepping 4.
cpuinfo: CPU measured at 307.895MHz.
xcommon: Display :0.0, vendor The XFree86 Project, Inc,
XFree86 4.3.0
xfullscreen: Using XINERAMA for dual-head information.
xfullscreen: Pixels are square.
xfullscreen: Number of displays is 2.
xfullscreen: Head 0 at 0,0 with size 1024x768.
xfullscreen: Head 1 at 0,0 with size 640x480.
xcommon: Have XTest, will use it to ping the screensaver.
xcommon: Pixel aspect ratio 1:1.
xcommon: Window manager is Xfwm4 and is EWMH compliant.
xcommon: Using EWMH state fullscreen property.
xcommon: Using EWMH state above property.
xcommon: Using EWMH state below property.
xcommon: Pixel aspect ratio 1:1.
xcommon: Displaying in a 768x576 window inside 768x576
space.
xvoutput: Using XVIDEO adaptor 106: NV05 Video Blitter.
speedycode: Using MMX optimized functions.
station: Reading stationlist from
/root/.tvtime/stationlist.xml
videoinput: Using video4linux driver 'BT878(Hauppauge
(bt878))'.
videoinput: Card type is eb, audio 1.
videoinput: Tuner Television (NTSC), flags: PAL NTSC SECAM 
videoinput: Audio supports Mutable 
videoinput: Brightness 24445, hue 24445, colour 30573,
contrast 32310
videoinput: Whiteness 0, depth 16, palette 7.
videoinput: Tuner Television (NTSC), flags: PAL NTSC SECAM 
tvtime: Sampling input at 720 pixels per scanline.
deinterlace: BlurVertical disabled: required CPU
accelleration features unavailable.
deinterlace: AdaptiveSearch disabled: required CPU
accelleration features unavailable.
deinterlace: AdaptiveAdvanced disabled: required CPU
accelleration features unavailable.
deinterlace: AdaptiveSimple disabled: required CPU
accelleration features unavailable.
xcommon: Pixel aspect ratio 1:1.
xcommon: Displaying in a 768x576 window inside 768x576
space.

xcommon: Received a map, marking window as visible (77).


----------------------------------------------------------------------

>Comment By: greg bell (gbell12)
Date: 2004-06-22 07:25

Message:
Logged In: YES 
user_id=930823


Its an old PII/333 (as the -v output shows) with an NVidia
GeForce 2 MX100 video card.  I can't remember if its AGP but
I think it is.

I'd be embarrassed about even trying anything video related
with this setup except that with linux's efficiency, this
thing has been a TiVo box for over a year - recording TV
(streamer) and playing it back (mplayer) with no problem.

Any tvtime setting I should try to reduce PCI bus bandwidth?


----------------------------------------------------------------------

Comment By: Billy Biggs (vektor)
Date: 2004-06-22 06:18

Message:
Logged In: YES 
user_id=153320

Random horizontal lines usually means that too much data is
being sent over your PCI bus for your system to handle.

Do you have a PCI video card?  This might be one reason. 
tvtime sends more data than a PCI video card can handle.

Please describe your hardware configuration.

----------------------------------------------------------------------

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