erratic PCI detection of Hauppauge WinTV PVR-350
Adam Monsen
card. Sometimes Linux sees the card, and sometimes it doesn't. I've
tried different PCI slots, different 2.6.x kernel versions, and
different distributions, but the results always seem similar.
The first time I booted my system with the card, I used an up-to-date
Fedora Core 4 install. The card appeared in the output of lspci (sorry,
I failed to capture this), and I was able to install and load ivtv
drivers and firmware. Xawtv ran, but I kept seeing errors like "no way
to get: 800x600 32 bit TrueColor". I rebooted the computer to see if
xawtv and whatever it depended on would simply right itself. Upon
reboot, the card no longer shows up in the kernel ring buffer nor in
the output of lspci.
Any ideas on how I can reliably get my card to be "seen" by the kernel?
Any other output that might be useful?
I've also tried booting recent Knoppix and Ubuntu LiveCDs, but I still
can't see the card. I've tried tweaking the BIOS settings, but I must
not have the right mojo.
The card works flawlessly in a Windows XP box.
The motherboard is brand new and (besides possibly this issue) doesn't
exhibit signs of failure.
I think I might've made the card reappear once by removing it,
installing a /different/ TV Tuner card, rebooting, reinstalling the
Hauppauge WinTV PVR-350, and rebooting again. However, after a
subsequent reboot, the card did the same disappearing act.
Bruce Stewart
All lspci does is go through the devices seen on the PCI bus and return the
information returned by those devices. As you said it, the card appears to
function correctly in another machine, so it seems to rule out the card.
There are 3 things I can see as a problem:
Firstly, (I think the most likely) is that the card is not fully home in the
slot, have you checked that the board is fully home in the slot? Are the
motherboard standoffs large enough to ensure that the PCI card is able to
be pushed home?
Secondly, a marginal PSU, by adding the card you are putting extra load on
the PSU, therefore the card works erratically, but then this would tend to
cause other problems like lockups and crashes. Does this happen when your
card is in?
Thirdly, a possible incompatibility between the card and motherboard. Do you
have any other cards in the PCI slots?
Bruce S.
--
Replace the by by blueyonder
Adam Monsen
[...]
> Firstly, (I think the most likely) is that the card is not fully home in the
> slot, have you checked that the board is fully home in the slot?
Yes, I checked this. Seems to be in there pretty good.
> Are the motherboard standoffs large enough to ensure that the PCI
> card is able to be pushed home?
Yes, they look fine.
> Secondly, a marginal PSU, by adding the card you are putting extra load on
> the PSU, therefore the card works erratically, but then this would tend to
> cause other problems like lockups and crashes. Does this happen when your
> card is in?
(by PSU I assume you mean Power Supply Unit)
The PSU is 350 watts, and I haven't seen any lockups and/or crashes.
> Thirdly, a possible incompatibility between the card and motherboard. Do you
> have any other cards in the PCI slots?
I've experimented with and without other cards present; the results
seem the same in every case.
You gave me an idea... I tried powering off and waiting for 5 minutes.
Still no card. I then tried waiting for 10 minutes, and lspci *did*
show the card. Interesting. This doesn't seem to be Fedora specific...
the same thing happens with Knoppix and Ubuntu Live CDs.
While mysterious, I suppose this workaround is good for now, especially
if I don't have to reboot often. Thanks for listening!
For reference, here's the device as reported by "sudo /sbin/lspci -v":
01:02.0 Multimedia video controller: Internext Compression Inc iTVC15
MPEG-2 Encoder (rev 01)
Subsystem: Hauppauge computer works Inc. WinTV PVR-350
Flags: bus master, medium devsel, latency 64, IRQ 185
Memory at c8000000 (32-bit, prefetchable) [size=64M]
Capabilities: [44] Power Management version 2