Bug 251068 – sys-kernel/gentoo-sources-2.6.27-r5 no longer works with Hauppauge WinTV 150

• Product: Gentoo Linux
• Status: RESOLVED NEEDINFO

[Description Robert Bradbury 2008-12-15 22:37:03 UTC]

I have a Hauppauge WinTV (PVR) 150 which is a PCI based video access device installed on my machine.  I have had it working with previous versions of Linux.  The 2.6.24-gentoo-r4 release worked fine, and I belive the 2.6.26 may have worked as well.  Even 2.6.27-gentoo-r4 (maybe).  Linux 2.6.27-gentoo-r5 does definitely not work.  The preveious mplayer scripts which did work fine to read from /dev/video0 (/dev/v4l/video0) no longer work.  Variations on them (using quite different video-in parameters) no longer work as well.

Reproducible: Always

Steps to Reproduce:
1.Compile 2.6.27-gentoo-r5
2.Reboot
3.Attempt to watch TV using mplayer and /dev/v4l/video0 (Hauppauge 150 card), e.g.
/usr/bin/mplayer -vo x11 -quiet -demuxer mpegps -lircconf ~/.lircrc -framedrop /dev/v4l/video0

(and believe me I've tried many of the various variations available on the web for this).


Actual Results:  
What one gets is a screen where the top half is a bunch of black and white lines and the bottom half is a bunch of various colored blocks overlaid with various lines.


Expected Results:  
Mplayer or other programs should properly read /dev/video0 and display the input.
Channels should be able to be changed properly.
One should be able to "watch" TV on ones personal computer.

I repeat the point that this is a backward regression in the source state -- since it *did* previously work.

[Comment 1 Robert Bradbury 2008-12-15 22:44:53 UTC]

Created attachment 175376 [details]
Modules loaded at time when mplayer does not work

I had hoped that by upgrading to 2.6.27-gentoo-r5 I would be able to get *BOTH* my Hauppauge WinTV PVR 150 working *and* my HP Webcam (Omnivision 519) working.  But instead it appears that both have degraded to a non-working state.

[Comment 2 Robert Bradbury 2008-12-15 23:03:15 UTC]

See also Bug #251076 regarding the PCI/USB devices present.

There is no problem with respect to the OS properly identifying that there may be 2 video input devices (video0 = PSI Hauppauge WinTV 150 input; video1 = USB OmniVision 519 WebCam).  The problem is that valid output can be read from neither of them.

[Comment 3 Axel Dyks 2008-12-16 14:39:52 UTC]

Robert, you need to be much more precise about the particular kernel versions
that worked for you and which did not. Otherwise it's getting really hard,
if not impossible, to help you track this down.

So, you'll need to provide information like

  * latest working kernel
  * earliest failing kernel
  * does (still not) work on 2.6.28-rc
  
Also, when reproducing the bug on earliest failing kernel, make sure
that it does not interfere with your other problem (tuner not detected),
i. e. use a kernel with (cx88) driver build as module. 

Thanks, Axel

[Comment 4 Axel Dyks 2008-12-16 16:58:14 UTC]

Maybe your problem is just a v4l <-->  v4l2 compatibility issue.
Have you tried the v4l2 driver of mplayer/mencoder?

According to the demsg output you've attached to the original bug from
which this has been split off, your cx88 device is registered as a v4l2
device on your 2.6.26 kernel.

If using the v4l2 driver doesn't work you can try to use "lib4vl". See  
http://freshmeat.net/projects/libv4l/?branch_id=76006&release_id=28947
for further details and on how to "insert the compatibility layer".

BTW: libv4l is in portage.

[Comment 5 Axel Dyks 2008-12-17 12:46:08 UTC]

Argh, seems I've confused your report with another user's report.

Anyway, what's needed is

  * .config + dmesg from (latest) working kernel
  * .config + dmesg from (earliest) failing kernel

and in case you want to take the issue upstream,
you'll need to test with 2.6.28-rcX to see whether
the problem has alreayd been fixed.

Thanks and sorry for the confusion

Axel

[Comment 6 Daniel Drake (RETIRED) 2009-01-07 20:29:49 UTC]

Please reopen when the info requested in comment #5 has been provided.