On 10/03/2012 01:55 PM, Marx wrote:
On 23.09.2012 18:22, Antti Palosaari wrote:
On 09/16/2012 05:23 PM, Antti Palosaari wrote:
On 09/12/2012 09:32 AM, Marx wrote:
Hello
I'm trying to use dual DVB-T tuner based on ITE9135 tuner. I use Debian
kernel 3.5-trunk-686-pae. My motherboard is AsRock E350M1 (no USB3
ports).
Tuner is detected ok, see log at the end of post.
When I try to scan channels, bug happens:
Sep 11 17:16:31 wuwek kernel: [ 209.291329] ehci_hcd 0000:00:13.2:
force halt; handshake f821a024 00004000 00000000 -> -110
Sep 11 17:16:31 wuwek kernel: [ 209.291401] ehci_hcd 0000:00:13.2: HC
died; cleaning up
Sep 11 17:16:31 wuwek kernel: [ 209.291606] usb 2-3: USB disconnect,
device number 2
Sep 11 17:16:41 wuwek kernel: [ 219.312848] dvb-usb: error while
stopping stream.
Sep 11 17:16:41 wuwek kernel: [ 219.320585] dvb-usb: ITE 9135(9006)
Generic successfully deinitialized and disconnected.
After trying many ways I've read about problems with ehci on SB700
based
boards and switched off ehci via command
sh -c 'echo -n "0000:00:13.2" > unbind'
and now ehci bug doesn't happen. Of course I can see only one tuner and
in slower USB mode (see log at the end). But now I can scan succesfully
without any errors.
Of course it isn't acceptable fix for my problem. Drivers for ITE9135
seems ok, but there is a problem with ehci_hcd on my motherboard.
I would like to know what can I do to fix my problem.
I am quite sure dvb_usb_v2 fixes that. Test latest tree.
Antti
Test results please?
I've replaced motherboard (no AMD chipset) and this problem disappeared.
Unfortunatelly there were some problem with newsgate on gmane and I
didn't receive your reply on time. Now I don't have this motherboard,
but I can confirm ITE9135 drivers now works ok, so this problem was with
USB driver.
I have also AMD SB700 USB bridge and saw these errors. I suspect it race
condition in DVB USB which happens in certain situation / combinations.
I added one mutex to DVB USB v2 due to that...
Now I have some small problem with ITE9135 driver. I use dual tuner.
When I restart computer while the card is connected then disconnect and
connect card again, I have four devices in /dev/dvb instead of two.
Is it known bug and is fixed or I should attach some logs?
Marx
New for me. It could be ITE9135 driver bug or DVB USB bug. I have to
test it.
regards
Antti
--
http://palosaari.fi/
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
