[ tvtime-Bugs-958698 ] frame drops with kernel 2.6.4

Bugs item #958698, was opened at 2004-05-23 00:38
Message generated for change (Comment added) made by stakker_
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=506987&aid=958698&group_id=64301

Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Christoph Peus (cpeus)
Assigned to: Nobody/Anonymous (nobody)
Summary: frame drops with kernel 2.6.4 

Initial Comment:
I tried hard to get rid of frame drops with tvtime
0.9.12 - without success yet.  tvtime -v yields this:

 Running tvtime 0.9.12.
Reading configuration from /etc/tvtime/tvtime.xml
Reading configuration from /home/cp/.tvtime/tvtime.xml
cpuinfo: CPU AMD Duron(tm) processor, family 6, model
7, stepping 0.
cpuinfo: CPU measured at 1002.510MHz.
xcommon: Display :0.0, vendor Gentoo Linux (XFree86
4.3.0, revision r2), XFree86 4.3.0
xfullscreen: Single-head detected, pixel aspect will be
calculated.
xfullscreen: Pixel aspect ratio on the primary head is:
1/1 == 1.00.
xfullscreen: Using the XFree86-VidModeExtension to
calculate fullscreen size.
xfullscreen: Fullscreen to 0,0 with size 1280x1024.
xcommon: Have XTest, will use it to ping the screensaver.
xcommon: Pixel aspect ratio 1:1.
xcommon: Window manager is Metacity and is EWMH compliant.
xcommon: You are using metacity.  Disabling aspect
ratio hints
xcommon: since most deployed versions of metacity are
still broken.
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 53: NV Video Overlay.
speedycode: Using MMXEXT optimized functions.
station: Reading stationlist from
/home/cp/.tvtime/stationlist.xml
videoinput: Using video4linux2 driver 'bttv', card
'BT878 video (Hauppauge (bt878))' (bus PCI:0000:00:0b.0).
videoinput: Version is 2316, capabilities 5010015.
tvtime: Sampling input at 720 pixels per scanline.
xcommon: Pixel aspect ratio 1:1.
xcommon: Displaying in a 768x576 window inside 768x576
space.
xcommon: Received a map, marking window as visible (76).

I had no success with Nvidia's proprietary driver and
with a Radeon 7500 board too. The kernel is a custom
2.6.4 with (or without) the "Preemptible Kernel"
feature - it makes no difference. Is a 1GHz CPU to slow
for tvtime? But CPU consumption is only about 25%...

I have no idea what to try next. Thanks in advance for
your help!

Regards
Christoph

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

Comment By: harri granholm (stakker_)
Date: 2004-06-08 20:04

Message:
Logged In: YES 
user_id=646911

If somebody knows of a fix in some recent 2.6.x version (or a patch), 
please tell... I've been forced to use tvtime in half resolution ever since 
upgrading to 2.6.0 :-/

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

Comment By: Darius Mazeika (dariusm)
Date: 2004-05-31 16:28

Message:
Logged In: YES 
user_id=925634

This is not tvtime problem I think - I have noticed all TV
programs are much slower on 2.6.x kernel versions and eat
much more of CPU than it used to (I have tried on 2.6.3,
2.6.4 and 2.6.5). After these experiments I have decided to
stick with 2.4 kernel with bttv patches (2.4.26 works just
fine). I thought that's my faulty hardware, but now I am
pretty sure that's a problem of kernel or bttv patches
itself - maybe it has been fixed in recent realeases of
kernel or bttv patches located at bytesex.org.

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

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