Fw: [AG-TECH] Wierd problems with video using VIC in fedora 3/4
proshanta at gmail.com
Sun Sep 4 09:52:52 CDT 2005
Thank you for your response. Yes I was kind of thinking among the same
lines, and try to search the list. Some of the converstations did discuss
the issues with vic crashing with FC1 and FC2. I believe starting from FC3
and FC4 the Video For Linux 2 drivers were built into the kernel and
resolved several issues with the cx88 series. The latter AG2.3 and
AG2.4releases also resolved some issues with using the V4L
V4L2 drivers, so I it works well. However what I am seeing is a little
different, where the streaming works, but one window would stop sending, and
muting/unmuting does not help, and restarting the vic causes the window to
broadcast a green screen.
Thank you for the tip about reloading the video capture modules, but I have
tried to use tvtime to verify that the card still works after the green
screen. So I think the reboot solves more of an AG issue than a driver
issue. However, as Doug pointed out it could be the manner in which the AG
toolkit uses a compatablity tool for V4L2 instead of the natives, for very
good reason (namely users with Quickcams will have difficulties as V4L2
support is still beta). I believe he will be releasing a possible native
V4L2 controls for the AG in the coming week, which may help in what I'm
currently faced with.
On 9/4/05, Natalia Costas Lago <natalia at cesga.es> wrote:
> No idea about the real problem, just a suggestion... maybe of rebooting
> u can remove and reload the kernel module instead?.
> I noticed the capture card u use has the c88xx chip; time ago (more than
> a year) I dealt with one of those, the driver was in 0.0.3 version by that
> time and I could hardly make it work (only with a kernel rebuild and much
> pain). I remember I posted my enquiries to ag-tech and more people did
> afterwards, search that thread (there are many concerning cx88 chip) to find
> some more information. Try a capture card with an 878 chip instead?.
> Hope this helps,
> Kind regards,
> Natalia Costas Lago
> email: natalia at cesga.es
> Centro de Supercomputacion de Galicia (CESGA)
> Avenida de Vigo, s/n Campus Sur
> 15706 Santiago de Compostela - SPAIN
> Tel: +34 981 56 98 10
> Fax: +34 981 59 46 16
> ----- Original Message -----
> *From:* Proshanta Saha <proshanta at gmail.com>
> *To:* ag-tech at mcs.anl.gov
> *Sent:* Saturday, September 03, 2005 7:36 AM
> *Subject:* [AG-TECH] Wierd problems with video using VIC in fedora 3/4
> I've been debugging a non-responsive vic window problem for days, what
> happens is that for the first 5 mins, I get perfect motion on all 3 cameras.
> All of a sudden one of them will freeze up. Stoping the session and staring
> it again causes vic to show a green window, and essentially render that
> capture card useless. Still works under tvtime, just not with vic. I am
> almost hitting a brick wall, ie. tried almost everything I could to find out
> if it was my server(dual core dell 380s), capture card (Hauppauge Winttv 401
> c88xx version), linux (fedora 4), or the vic software.
> Step 1: was making sure that the Wintv cards were all good, and had not
> problem running simultaneously for hrs, a fair amount of burn in tests were
> done, the tv cards all seem to be able to run at capture mode for hrs with
> no problem.
> Step 2: was to see if vic was kind of not so nvidia friendly, the video
> capture server has a dual head 128mb PCI-E, which I've heard people find not
> so great to work with under linux. I personally did not find any such
> problems, running at 1600x1200 just fine, perfect response time and etc. But
> just for kicks I brought out a dual xeon dell box I had lying around, with
> more than ample horse power with a pretty simple video card, probably an
> intel i810 type of a card. Unfortunatley I faced the same problem.
> Step 3: Fedora 4 versus Fedora 3. So I decided to try Fedora 3 with some
> spare hard disks. Fedora 3 seems surprisingly easy to setup AG with, unlike
> the mountain I had to climb for Fedora 4. However, it seems to also
> mysteriously freeze one of the vic screens, after which every session would
> produce a greed screen on the frozen vic. Only a reboot will fix the green
> screen problem. But then after 5 mins of starting AG, I'm back to the frozen
> screen problem.
> Step 4: AG2.3 versus AG2.4, I was very excited when I saw that the screen
> did not freeze up after five minutes. But alas after about 15 mins or so I
> get a frozen window, and will show up as a green screen everytime after
> that. Only a reboot will fix that problem, and would eventually freeze up
> Step 5::Move 1 capture card to another machine, as it seems to be able to
> handle 2 just fine. But it appears that even in this case VIC would cause a
> frozen screen on one of the windows. And the usual green screen appears. The
> one with just 1 works perfectly.
> So I'm kind of running out of ideas, since the capture cards on their own
> pass the burn in test. Software capture tests all pass. The VIC however
> mysteriously causes a frozen screen followed by a green screen in next vic
> Any suggestions would be most welcome. Kind of running out of hair to pull
> aswell. Thanks in advance.
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