5922 hangs after some time

[kughifar]

Hi all,

back in May I purchased TBS5922 from DTV Europe and I am
quite happy with it: sensitivity is good, channel change very fast.
I use DVBViewer 5.2 and latest WIndows driver 2.0.3.1 on a
Acer Revo RL100 running Windows 7 64 bit.

Unfortunately, after some time (a few minutes to a few hours)
the device hangs in a strange way:

- LOCK led turns off;
- remote no longer works;
- current channel keeps streaming (both audio and video),
but if I try to change it (from menu; remote does not work)
screen goes black and it does not tune anything;
- Windows is unable to shut down (stays on "Shutting down..."
screen forever) until I unplug TBS5922 from USB port.

Overall, this looks to me like a "brownout" issue: "tuner" part
keeps running, but "controller" part is reset and stops working
until it is initialized again by unplugging & reinserting the device.

I thought this might happen because my PC did not provide
enough power to the device, so I tried with a better USB cable
(only 20 cm long) and also with a 2 amps powered hub, but
situation did not improve.

Finally I noticed that TBS5922 hanged more frequently during day
than during night, or when I used TV remote a lot.
I put some black tape on IR sensor: to my surprise, this actually
fixed the problem!
With no light hitting IR sensor, TBS5922 runs fine for many hours.

Do you have any suggestion on how I can fix this issue?
Do you think I have a faulty TBS5922?

Thank you for your help,

Ferruccio

[crazycat]

This common problem for all TBS USB devices. Maybe bug in Cypress FX2 firmware or driver bug.

[updatelee]

It should be getting it's power from the adapter not the USB cable
UDL

[kughifar]

This common problem for all TBS USB devices. Maybe bug in Cypress FX2 firmware or driver bug.

Not good: it means this is not a problem with a single faulty unit

Any workaround?
Registry key to disable IR sensor? Maybe I can at least avoid the sticky black tape....

Ferruccio

[kughifar]

It should be getting it's power from the adapter not the USB cable
UDL

For sure It does: it gets quite hot sometimes, it cannot get so hot with only
500 mA from USB port...

For the record, disconnecting either USB or adapter cable has the same effect:
Windows does device removal.
When I connect the cable again, TBS5922 resumes working (for a while).

Ferruccio

[DjNDB]

I put some black tape on IR sensor: to my surprise, this actually
fixed the problem!
With no light hitting IR sensor, TBS5922 runs fine for many hours.

Your idea saved me. I've been having that problem for almost 2 Years, and tried 3 different TBS 5922 boxes and all drivers available so far.
The Box would hang multiple times per day, a few times every hour. I even put a switch close to my seat so i can easily reboot the box, but it was still annoying as hell.

I read your post 3 days ago and put black tape above the sensor as well. I haven't had a single crash since then.
I don't need the included sensor, because i bought a separate one that doesn't require the TV application to have focus.

Now i can finally watch TV without worrying about crashes. It also fixed the issue, that it would take longer to switch channels every now and then.

[kughifar]

Great!

This confirms that the issue is not with a single faulty device:
this is the way TBS5922 "works".

I should definetely resume my project to hook up
an IR sensor to microphone input:
http://winlirc.sourceforge.net/audioreciever.html

Ferruccio