From Newsgroup: uk.comp.os.linux

On Fri, 4 Oct 2024 14:41:43 -0000 (UTC)
The Nomad <nomad@the.desert.invalid> wrote:

On Fri, 4 Oct 2024 14:19:29 +0100, Andy Burns <usenet@andyburns.uk>
wrote:

Davey wrote:

https://tinyurl.com/26k8uy3b

It is just about mentioned on the company website, buried deep in
the Unsupported file. There is no mention of available
documentation. The vendor says it was used in a Windows system, so
has no idea about Linux use. My question is, is it
possible/probable/certain that my Ubuntu would pick it up and go
with it without any any further configuration?

The capture chip looks to be supported by LinuxTV

<https://www.linuxtv.org/wiki/index.php/Conexant_Fusion_878A>

the other major chip on the card is a PCI/PCIe bridge

Indeed I ran a couple for ages (PCI not PCIe) work well

Or <https://www.ebay.co.uk/itm/364218770565>

HTH

Avpx

It does help.

It think it has confirmed to me that a PCIE card is the way to go. With
what I am (was) trying to do with the old one seems to be an unhappy
condition for the PC.
--
Davey.

--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: uk.comp.os.linux

On Fri, 4 Oct 2024 14:41:43 -0000 (UTC)
The Nomad <nomad@the.desert.invalid> wrote:

On Fri, 4 Oct 2024 14:19:29 +0100, Andy Burns <usenet@andyburns.uk>
wrote:

Davey wrote:

https://tinyurl.com/26k8uy3b

It is just about mentioned on the company website, buried deep in
the Unsupported file. There is no mention of available
documentation. The vendor says it was used in a Windows system, so
has no idea about Linux use. My question is, is it
possible/probable/certain that my Ubuntu would pick it up and go
with it without any any further configuration?

The capture chip looks to be supported by LinuxTV

<https://www.linuxtv.org/wiki/index.php/Conexant_Fusion_878A>

the other major chip on the card is a PCI/PCIe bridge

Indeed I ran a couple for ages (PCI not PCIe) work well

Or <https://www.ebay.co.uk/itm/364218770565>

HTH

Avpx

I ordered the used PCIe card yesterday. Let's hope it works!

But: When I powered up the PC this morning, I had removed the PCIE-PCI
card completely, fully expecting a trouble-free boot. It was not to be, however. I got the familiar 'trouble with CPU fan control, enter BIOS'
message, which showed the familiar slow CPU fan speed and hinted at a
problem with temperature monitoring. I exited the BIOS, shut the PC off,
and rebooted, on which the fan did not start at all. I knew already
that, when unpowered, it will not rotate, being presumably under the
total control of some stepper-type operator. This time, it felt
similar, but I was able to physically get it started, and from then on,
it ran (is still running) fine.
Does this mean that I have somehow borked something in the BIOS? It is possible. If it is, I will contact the manufacturer, own up to what I
have done, and see what they say. They have Remote Access to
investigate and fix problems. It's not much use if I have to kick-start
the fan every time it's booted up.

This one is not over yet.
--
Davey.

--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: uk.comp.os.linux

Davey wrote:

when unpowered, it will not rotate, being presumably under the
total control of some stepper-type operator.

I've never encountered computer fans with stepper motors.
--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: uk.comp.os.linux

On Sat, 5 Oct 2024 11:46:02 +0100
Andy Burns <usenet@andyburns.uk> wrote:

Davey wrote:

when unpowered, it will not rotate, being presumably under the
total control of some stepper-type operator.

I've never encountered computer fans with stepper motors.

Hmmm. Puzzled, then. It makes a very slight chugging sound, similar to,
but not exactly like*, a bad bearing. It is almost inaudible with the
side installed on the PC, though.

* Thoughts of Peter Jones in "The Hitch Hiker's Guide to the Galaxy":
'The vending machine produced something almost completely, but not
totally, unlike tea'.
--
Davey.

--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: uk.comp.os.linux

Davey <davey@example.invalid> wrote:

On Sat, 5 Oct 2024 11:46:02 +0100
Andy Burns <usenet@andyburns.uk> wrote:

Davey wrote:

when unpowered, it will not rotate, being presumably under the
total control of some stepper-type operator.

I've never encountered computer fans with stepper motors.

Hmmm. Puzzled, then. It makes a very slight chugging sound, similar to,
but not exactly like*, a bad bearing. It is almost inaudible with the
side installed on the PC, though.

I've never come across a PC fan that won't spin by hand when powered off.
It sounds like it's either powered but not enough to overcome friction to
start (eg low voltage or speed control set too low), or bearings badly
binding.

As you say it's not spinning when unpowered (ie PC turned off), that rules
out the first one. I'm thinking it would be worth changing the fan.

It sounds like this is probably a red herring in relation to your capture
card issues.

Theo
--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: uk.comp.os.linux

On 05 Oct 2024 17:35:39 +0100 (BST)
Theo <theom+news@chiark.greenend.org.uk> wrote:

Davey <davey@example.invalid> wrote:

On Sat, 5 Oct 2024 11:46:02 +0100
Andy Burns <usenet@andyburns.uk> wrote:

Davey wrote:

when unpowered, it will not rotate, being presumably under the
total control of some stepper-type operator.

I've never encountered computer fans with stepper motors.

Hmmm. Puzzled, then. It makes a very slight chugging sound, similar
to, but not exactly like*, a bad bearing. It is almost inaudible
with the side installed on the PC, though.

I've never come across a PC fan that won't spin by hand when powered
off. It sounds like it's either powered but not enough to overcome
friction to start (eg low voltage or speed control set too low), or
bearings badly binding.

As you say it's not spinning when unpowered (ie PC turned off), that
rules out the first one. I'm thinking it would be worth changing the
fan.

It sounds like this is probably a red herring in relation to your
capture card issues.

Theo

Ok, that makes sense. Maybe I'll report the fan problems to the
manufacturer as is, and see what they come up with. I must admit that I
can't see how even a momentary pull-down of power when the adaptor card
was first fully connected would still have repercussions now. But
what do I know? That's why I'm asking here! The PC was supposed to have
gone through a several days-long test after being built. The fan
concerned is on the ASUS motherboard.

When I next power it up, I'll take a photo of what the screen
shows, when it first tells me to open the BIOS, and then what the BIOS
screen shows. Maybe I can add a sound file of the noise the fan makes,
the manufacturer might be able to diagnose something from that
information.

If the PCIE card arrives tomorrow, I'll still try that.

More later....
--
Davey.

--- Synchronet 3.21d-Linux NewsLink 1.2

From Newsgroup: uk.comp.os.linux

On 05 Oct 2024 17:35:39 +0100 (BST)
Theo <theom+news@chiark.greenend.org.uk> wrote:

Davey <davey@example.invalid> wrote:

On Sat, 5 Oct 2024 11:46:02 +0100
Andy Burns <usenet@andyburns.uk> wrote:

Davey wrote:

when unpowered, it will not rotate, being presumably under the
total control of some stepper-type operator.

I've never encountered computer fans with stepper motors.

Hmmm. Puzzled, then. It makes a very slight chugging sound, similar
to, but not exactly like*, a bad bearing. It is almost inaudible
with the side installed on the PC, though.

I've never come across a PC fan that won't spin by hand when powered
off. It sounds like it's either powered but not enough to overcome
friction to start (eg low voltage or speed control set too low), or
bearings badly binding.

As you say it's not spinning when unpowered (ie PC turned off), that
rules out the first one. I'm thinking it would be worth changing the
fan.

It sounds like this is probably a red herring in relation to your
capture card issues.

Theo

On bootup this morning, I got the familiar warning about bad fan
control, and went into the BIOS. The CPU fan, the problem one, was not
running, confirmed by the lack of noise. I opened the PC up, and
flicked the fan, which then slowly sped up. I also made some changes to
the Fan Speed profile, to try to encourage it to start up on its
own. I shut it down, and when it was at rest, I checked the fan again,
and now it spins freely. I took several photos along the way, for later analysis if required.
When I powered back up, all worked well. I shut it down, and will
reboot it shortly to see how it does.
--
Davey.

--- Synchronet 3.21d-Linux NewsLink 1.2