Re: Bug#854100: libdvbv5-0: fails to tune / scan

Re: Bug#854100: libdvbv5-0: fails to tune / scan

[Gregor Jasny]

Hello,

On 2/4/17 3:35 AM, Marcel Heinz wrote:
> After the upgrade from libdvbv5-0 1.10.1-1 to 1.12.2-2, any applications
> using libdvbv5-0 fail to work with my DVB-S card.
> 
> Output with old dvb-tools / libdvbv5-0 1.10.1-1:
> 
> |$ dvbv5-scan -l UNIVERSAL /usr/share/dvb/dvb-s/Astra-19.2e
> |Using LNBf UNIVERSAL
> |        Europe
> |        10800 to 11800 MHz and 11600 to 12700 MHz
> |	 Dual LO, IF = lowband 9750 MHz, highband 10600	MHz
> |ERROR    command BANDWIDTH_HZ (5) not found during retrieve
> |Cannot calc frequency shift. Either bandwidth/symbol-rate is unavailable (yet).
> |Scanning frequency #1 12551500
> |Lock   (0x1f) Signal= 85,55% C/N= 99,84% postBER= 0
> | [scan runs normally from then on]
> 
> Output with new dvb-tools / libdvbv5-0 1.12.2-2:
> 
> |$ dvbv5-scan -l UNIVERSAL /usr/share/dvb/dvb-s/Astra-19.2e
> |Using LNBf UNIVERSAL
> |        Europe
> |        10800 to 11800 MHz and 11600 to 12700 MHz
> |	 Dual LO, IF = lowband 9750 MHz, highband 10600	MHz
> |ERROR    command BANDWIDTH_HZ (5) not found during retrieve
> |Cannot calc frequency shift. Either bandwidth/symbol-rate is unavailable (yet).
> |Scanning frequency #1 12551500
> |ERROR    FE_SET_PROPERTY: Invalid argument
> |ERROR    dvb_fe_set_parms failed: Invalid argument
> 
> Similarily, kaffeine fails to tune to any channel, or to do a scan.
> Other applications not using libdvbv5-0 (mplayer, tvheadend) still
> work fine with the card.
> 
> DVB device is:
> 
> |$ dmesg | grep DVB
> | [    8.641450] DVB: registering new adapter (FlexCop Digital TV device)
> | [    8.662380] b2c2_flexcop_pci 0000:09:00.0: DVB: registering adapter 0 frontend 0 (Conexant CX24123/CX24109)...
> | [    8.662664] b2c2-flexcop: initialization of 'Sky2PC/SkyStar 2 DVB-S rev 2.8' at the 'PCI' bus controlled by a 'FlexCopIIb' complete
> 
> -- System Information:
> Debian Release: 9.0
>   APT prefers testing
>   APT policy: (500, 'testing')
> Architecture: amd64 (x86_64)
> Foreign Architectures: i386
> 
> Kernel: Linux 4.9.0-1-amd64 (SMP w/4 CPU cores)
> Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash
> Init: systemd (via /run/systemd/system)

Mauro, do you have an idea why tuning broke?

Thanks,
Gregor

Re: Bug#854100: libdvbv5-0: fails to tune / scan

[Marcel Heinz]

Hi,

trying to provide a bit more information:

Am 04.02.2017 um 10:08 schrieb Gregor Jasny:
> Hello,
> 
> On 2/4/17 3:35 AM, Marcel Heinz wrote:
>> After the upgrade from libdvbv5-0 1.10.1-1 to 1.12.2-2, any applications
>> using libdvbv5-0 fail to work with my DVB-S card.
>>
>> [...]
>> Output with new dvb-tools / libdvbv5-0 1.12.2-2:
>>
>> |$ dvbv5-scan -l UNIVERSAL /usr/share/dvb/dvb-s/Astra-19.2e
>> |Using LNBf UNIVERSAL
>> |        Europe
>> |        10800 to 11800 MHz and 11600 to 12700 MHz
>> |	 Dual LO, IF = lowband 9750 MHz, highband 10600	MHz
>> |ERROR    command BANDWIDTH_HZ (5) not found during retrieve
>> |Cannot calc frequency shift. Either bandwidth/symbol-rate is unavailable (yet).
>> |Scanning frequency #1 12551500
>> |ERROR    FE_SET_PROPERTY: Invalid argument
>> |ERROR    dvb_fe_set_parms failed: Invalid argument


Using -vvv doesn't give any more clues:

| Using LNBf UNIVERSAL
|         Universal, Europe
|         10800 to 11800 MHz, LO: 9750 MHz
|         11600 to 12700 MHz, LO: 10600 MHz
| Found dvb demux device: dvb0.demux0
|   path: /dev/dvb/adapter0/demux0
|   sysfs path:
/sys/devices/pci0000:00/0000:00:1c.7/0000:08:00.0/0000:09:00.0/dvb/dvb0.demux0
|   bus addr: pci:0000:09:00.0
|   bus ID: 2103:13d0
| Found dvb dvr device: dvb0.dvr0
|   path: /dev/dvb/adapter0/dvr0
|   sysfs path:
/sys/devices/pci0000:00/0000:00:1c.7/0000:08:00.0/0000:09:00.0/dvb/dvb0.dvr0
|   bus addr: pci:0000:09:00.0
|   bus ID: 2103:13d0
| Found dvb frontend device: dvb0.frontend0
|   path: /dev/dvb/adapter0/frontend0
|   sysfs path:
/sys/devices/pci0000:00/0000:00:1c.7/0000:08:00.0/0000:09:00.0/dvb/dvb0.frontend0
|   bus addr: pci:0000:09:00.0
|   bus ID: 2103:13d0
| Found dvb net device: dvb0.net0
|   path: /dev/dvb/adapter0/net0
|   sysfs path:
/sys/devices/pci0000:00/0000:00:1c.7/0000:08:00.0/0000:09:00.0/dvb/dvb0.net0
|   bus addr: pci:0000:09:00.0
|   bus ID: 2103:13d0
| Selected dvb demux device: dvb0.demux0
|   path: /dev/dvb/adapter0/demux0
|   sysfs path:
/sys/devices/pci0000:00/0000:00:1c.7/0000:08:00.0/0000:09:00.0/dvb/dvb0.demux0
|   bus addr: pci:0000:09:00.0
|   bus ID: 2103:13d0
| using demux 'dvb0.demux0'
| Selected dvb frontend device: dvb0.frontend0
|   path: /dev/dvb/adapter0/frontend0
|   sysfs path:
/sys/devices/pci0000:00/0000:00:1c.7/0000:08:00.0/0000:09:00.0/dvb/dvb0.frontend0
|   bus addr: pci:0000:09:00.0
|   bus ID: 2103:13d0
| Device Conexant CX24123/CX24109 (/dev/dvb/adapter0/frontend0)
capabilities:
|      CAN_FEC_1_2
|      CAN_FEC_2_3
|      CAN_FEC_3_4
|      CAN_FEC_4_5
|      CAN_FEC_5_6
|      CAN_FEC_6_7
|      CAN_FEC_7_8
|      CAN_FEC_AUTO
|      CAN_INVERSION_AUTO
|      CAN_QPSK
|      CAN_RECOVER
| DVB API Version 5.10, Current v5 delivery system: DVBS
| Supported delivery system:
|     [DVBS]
| Failed to guess country from the current locale setting.
|
| ERROR    command BANDWIDTH_HZ (5) not found during retrieve
| Cannot calc frequency shift. Either bandwidth/symbol-rate is
unavailable (yet).
| Scanning frequency #1 12551500
| frequency: 12551.50 MHz, high_band: 1
| L-Band frequency: 12551.50 MHz (offset = 0.00 MHz)
| ERROR    FE_SET_PROPERTY: Invalid argument
| FREQUENCY = 12551500
| INVERSION = AUTO
| SYMBOL_RATE = 22000000
| INNER_FEC = 5/6
| POLARIZATION = VERTICAL
| DELIVERY_SYSTEM = DVBS
| ERROR    dvb_fe_set_parms failed: Invalid argument
| SEC: set voltage to OFF

The arguments seem plausible to me, but the ioctl still fails with EINVAL.

What might be more interesting is the kernel message produced by the
failed attempt:

| [42607.855196] b2c2_flexcop_pci 0000:09:00.0: DVB: adapter 0 frontend
0 frequency 12551500 out of range (950000..2150000)

This frequency range doesn't look like DVB-S at all...

Regards,
	Marcel

Re: Bug#854100: libdvbv5-0: fails to tune / scan

[Marcel Heinz]

Hi,

Am 04.02.2017 um 15:57 schrieb Gregor Jasny:
> Thanks for sharing! Maybe you could try to bisect to find the breaking
> commit?

OK, I ended up with

d982b0d03b1f929269104bb716c9d4b50c945125 is the first bad commit
commit d982b0d03b1f929269104bb716c9d4b50c945125
Author: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Date:   Tue Dec 13 16:43:28 2016 -0200

    dvb-sat: change the LNBf logic to make it more generic

    There are some new LNBf models with more than two frequency
    ranges. Change the logic there to allow adding those new
    LNBf types.

    Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

:040000 040000 5c0591da94959207f4b1573a40383b8143d12278
34df9c19cb42119706fce20dec00d18552ddf058 M      lib


This looks very related to the frequency range error I got from the kernel:

> | [42607.855196] b2c2_flexcop_pci 0000:09:00.0: DVB: adapter 0 frontend
> 0 frequency 12551500 out of range (950000..2150000)
> 
> This frequency range doesn't look like DVB-S at all...


Regards,
  Marcel

Re: Bug#854100: libdvbv5-0: fails to tune / scan

[Gregor Jasny]

Hello Mauro & DVB-S maintainers,

could you please have a look at the bug report below? Marcel was so kind
to bisect the problem to the following commit:

https://git.linuxtv.org/v4l-utils.git/commit/?id=d982b0d03b1f929269104bb716c9d4b50c945125

Bug report against libdvbv5 is here:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854100

On 2/4/17 5:43 PM, Marcel Heinz wrote:
> Am 04.02.2017 um 15:57 schrieb Gregor Jasny:
>> Thanks for sharing! Maybe you could try to bisect to find the breaking
>> commit?
> 
> OK, I ended up with
> 
> d982b0d03b1f929269104bb716c9d4b50c945125 is the first bad commit
> commit d982b0d03b1f929269104bb716c9d4b50c945125
> Author: Mauro Carvalho Chehab <mchehab@s-opensource.com>
> Date:   Tue Dec 13 16:43:28 2016 -0200
> 
>     dvb-sat: change the LNBf logic to make it more generic
> 
>     There are some new LNBf models with more than two frequency
>     ranges. Change the logic there to allow adding those new
>     LNBf types.
> 
>     Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
> 
> :040000 040000 5c0591da94959207f4b1573a40383b8143d12278
> 34df9c19cb42119706fce20dec00d18552ddf058 M      lib
> 
> 
> This looks very related to the frequency range error I got from the kernel:
> 
>> | [42607.855196] b2c2_flexcop_pci 0000:09:00.0: DVB: adapter 0 frontend
>> 0 frequency 12551500 out of range (950000..2150000)
>>
>> This frequency range doesn't look like DVB-S at all...

Thanks,
Gregor

Re: Bug#854100: libdvbv5-0: fails to tune / scan

[Mauro Carvalho Chehab]

Em Fri, 10 Feb 2017 22:02:01 +0100
Gregor Jasny <gjasny@googlemail.com> escreveu:

> Hello Mauro & DVB-S maintainers,
> 
> could you please have a look at the bug report below? Marcel was so kind
> to bisect the problem to the following commit:
> 
> https://git.linuxtv.org/v4l-utils.git/commit/?id=d982b0d03b1f929269104bb716c9d4b50c945125

Sorry for not handling it earlier. I took vacations on Jan, and had a pile
of patches to handle after my return. I had to priorize them, as we're
close to a Kernel merge window.

Now that Linus postponed the merge window, I had some time to dig into
it.

> 
> Bug report against libdvbv5 is here:
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854100

There was a bug at the logic that was checking if the frequency was
at the range of the local oscillators. This patch should be addressing
it:
	https://git.linuxtv.org/v4l-utils.git/commit/?id=5380ad44de416a41b4972e8a9c147ce42b0e3ba0

With that, the logic now seems to be working fine:

$ ./utils/dvb/dvbv5-scan ~/Intelsat-34 --lnbf universal -vv
Using LNBf UNIVERSAL
	Universal, Europe
	10800 to 11800 MHz, LO: 9750 MHz
	11600 to 12700 MHz, LO: 10600 MHz
...
Seeking for LO for 12.17 MHz frequency
LO setting 0: 10.80 MHz to 11.80 MHz
LO setting 1: 11.60 MHz to 12.70 MHz
Multi-LO LNBf. using LO setting 1 at 10600.00 MHz
frequency: 12170.00 MHz, high_band: 1
L-Band frequency: 1570.00 MHz (offset = 10600.00 MHz)

I can't really test it here, as my satellite dish uses a different
type of LNBf, but, from the above logs, the bug should be fixed.

Marcel,

Could you please test? The patch is already upstream.
I added a debug patch after it, in order to help LNBf issues
(enabled by using "-vv" command line parameters).

Thanks!
Mauro

Re: Bug#854100: libdvbv5-0: fails to tune / scan

[Mauro Carvalho Chehab]

Hi Gregor,

Em Mon, 13 Feb 2017 08:04:48 -0200
Mauro Carvalho Chehab <mchehab@osg.samsung.com> escreveu:

> Em Fri, 10 Feb 2017 22:02:01 +0100
> Gregor Jasny <gjasny@googlemail.com> escreveu:
> 
> > Hello Mauro & DVB-S maintainers,
> > 
> > could you please have a look at the bug report below? Marcel was so kind
> > to bisect the problem to the following commit:
> > 
> > https://git.linuxtv.org/v4l-utils.git/commit/?id=d982b0d03b1f929269104bb716c9d4b50c945125
> 
> Sorry for not handling it earlier. I took vacations on Jan, and had a pile
> of patches to handle after my return. I had to priorize them, as we're
> close to a Kernel merge window.
> 
> Now that Linus postponed the merge window, I had some time to dig into
> it.
> 
> > 
> > Bug report against libdvbv5 is here:
> > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854100
> 
> There was a bug at the logic that was checking if the frequency was
> at the range of the local oscillators. This patch should be addressing
> it:
> 	https://git.linuxtv.org/v4l-utils.git/commit/?id=5380ad44de416a41b4972e8a9c147ce42b0e3ba0
> 
> With that, the logic now seems to be working fine:
> 
> $ ./utils/dvb/dvbv5-scan ~/Intelsat-34 --lnbf universal -vv
> Using LNBf UNIVERSAL
> 	Universal, Europe
> 	10800 to 11800 MHz, LO: 9750 MHz
> 	11600 to 12700 MHz, LO: 10600 MHz
> ...
> Seeking for LO for 12.17 MHz frequency
> LO setting 0: 10.80 MHz to 11.80 MHz
> LO setting 1: 11.60 MHz to 12.70 MHz
> Multi-LO LNBf. using LO setting 1 at 10600.00 MHz
> frequency: 12170.00 MHz, high_band: 1
> L-Band frequency: 1570.00 MHz (offset = 10600.00 MHz)
> 
> I can't really test it here, as my satellite dish uses a different
> type of LNBf, but, from the above logs, the bug should be fixed.
> 
> Marcel,
> 
> Could you please test? The patch is already upstream.
> I added a debug patch after it, in order to help LNBf issues
> (enabled by using "-vv" command line parameters).

I added both patches to stable-1.12 branch. I also added a small
patch there adding support for an extra LNBf model at the DVB
Satellite table. Such change is not disruptive, as it just
adds a new element on an already-existing table.

Btw, I found another bug there. Starting to look on it right now.

There's something wrong with translations there. It seems that
something is causing i18n to print its headers instead of doing
the right thing. 

I'm enclosing the results at the end of this e-mail, with 
pt_BR translation, with is currently the only one available.

I think you should wait for this bug to get fixed before releasing
a new -stable release.

Thanks,
Mauro

---

$ LANG=pt_BR.utf8 dvbv5-scan -l
Por favor selecione o modelo do LNBf  abaixo:
UNIVERSAL
	Universal, Europe
	Project-Id-Version: libdvbv5 1.7.0
Report-Msgid-Bugs-To: linux-media@vger.Kernel.org
POT-Creation-Date: 2016-01-24 08:42+0100
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12200 to 12700 MHz, LO: 11250 MHz

C-BAND
	Big Dish - Monopoint LNBf
	Project-Id-Version: libdvbv5 1.7.0
Report-Msgid-Bugs-To: linux-media@vger.Kernel.org
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3700 to 4200 MHz, LO: 5150 MHz

C-MULT
	Big Dish - Multipoint LNBf (bandstacking)
	Right     : 3700 to 4200 MHz, LO: 5150 MHz
	Left      : 3700 to 4200 MHz, LO: 5750 MHz

DISHPRO
	DishPro LNBf (bandstacking)
	Vertical  : 12200 to 12700 MHz, LO: 11250 MHz
	Horizontal: 12200 to 12700 MHz, LO: 14350 MHz

110BS
	Japan 110BS/CS LNBf
	Project-Id-Version: libdvbv5 1.7.0
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11710 to 12751 MHz, LO: 10678 MHz

STACKED-BRASILSAT
	BrasilSat Stacked (bandstacking)
	Horizontal: 10700 to 11700 MHz, LO: 9710 MHz
	Horizontal: 10700 to 11700 MHz, LO: 9750 MHz

OI-BRASILSAT
	BrasilSat Oi
	Project-Id-Version: libdvbv5 1.7.0
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10950 to 11200 MHz, LO: 10000 MHz
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11800 to 12200 MHz, LO: 10445 MHz

AMAZONAS
	BrasilSat Amazonas 1/2 - 3 Oscilators (bandstacking)
	Vertical  : 11037 to 11450 MHz, LO: 9670 MHz
	Horizontal: 11770 to 12070 MHz, LO: 9922 MHz
	Horizontal: 10950 to 11280 MHz, LO: 10000 MHz

AMAZONAS
	BrasilSat Amazonas 1/2 - 2 Oscilators (bandstacking)
	Vertical  : 11037 to 11360 MHz, LO: 9670 MHz
	Horizontal: 11780 to 12150 MHz, LO: 10000 MHz
	Horizontal: 10950 to 11280 MHz, LO: 10000 MHz

GVT-BRASILSAT
	BrasilSat custom GVT (bandstacking)
	Vertical  : 11010 to 11067 MHz, LO: 12860 MHz
	Vertical  : 11704 to 11941 MHz, LO: 13435 MHz
	Horizontal: 10962 to 11199 MHz, LO: 13112 MHz
	Horizontal: 11704 to 12188 MHz, LO: 13138 MHz

Re: Bug#854100: libdvbv5-0: fails to tune / scan

[Mauro Carvalho Chehab]

Em Wed, 15 Feb 2017 11:13:18 -0200
Mauro Carvalho Chehab <mchehab@osg.samsung.com> escreveu:

> Hi Gregor,
> 
> Em Mon, 13 Feb 2017 08:04:48 -0200
> Mauro Carvalho Chehab <mchehab@osg.samsung.com> escreveu:
> 
> > Em Fri, 10 Feb 2017 22:02:01 +0100
> > Gregor Jasny <gjasny@googlemail.com> escreveu:
> > 
> > > Hello Mauro & DVB-S maintainers,
> > > 
> > > could you please have a look at the bug report below? Marcel was so kind
> > > to bisect the problem to the following commit:
> > > 
> > > https://git.linuxtv.org/v4l-utils.git/commit/?id=d982b0d03b1f929269104bb716c9d4b50c945125
> > 
> > Sorry for not handling it earlier. I took vacations on Jan, and had a pile
> > of patches to handle after my return. I had to priorize them, as we're
> > close to a Kernel merge window.
> > 
> > Now that Linus postponed the merge window, I had some time to dig into
> > it.
> > 
> > > 
> > > Bug report against libdvbv5 is here:
> > > https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854100
> > 
> > There was a bug at the logic that was checking if the frequency was
> > at the range of the local oscillators. This patch should be addressing
> > it:
> > 	https://git.linuxtv.org/v4l-utils.git/commit/?id=5380ad44de416a41b4972e8a9c147ce42b0e3ba0
> > 
> > With that, the logic now seems to be working fine:
> > 
> > $ ./utils/dvb/dvbv5-scan ~/Intelsat-34 --lnbf universal -vv
> > Using LNBf UNIVERSAL
> > 	Universal, Europe
> > 	10800 to 11800 MHz, LO: 9750 MHz
> > 	11600 to 12700 MHz, LO: 10600 MHz
> > ...
> > Seeking for LO for 12.17 MHz frequency
> > LO setting 0: 10.80 MHz to 11.80 MHz
> > LO setting 1: 11.60 MHz to 12.70 MHz
> > Multi-LO LNBf. using LO setting 1 at 10600.00 MHz
> > frequency: 12170.00 MHz, high_band: 1
> > L-Band frequency: 1570.00 MHz (offset = 10600.00 MHz)
> > 
> > I can't really test it here, as my satellite dish uses a different
> > type of LNBf, but, from the above logs, the bug should be fixed.
> > 
> > Marcel,
> > 
> > Could you please test? The patch is already upstream.
> > I added a debug patch after it, in order to help LNBf issues
> > (enabled by using "-vv" command line parameters).
> 
> I added both patches to stable-1.12 branch. I also added a small
> patch there adding support for an extra LNBf model at the DVB
> Satellite table. Such change is not disruptive, as it just
> adds a new element on an already-existing table.
> 
> Btw, I found another bug there. Starting to look on it right now.
> 
> There's something wrong with translations there. It seems that
> something is causing i18n to print its headers instead of doing
> the right thing. 
> 
> I'm enclosing the results at the end of this e-mail, with 
> pt_BR translation, with is currently the only one available.
> 
> I think you should wait for this bug to get fixed before releasing
> a new -stable release.

Bug fixed and pushed to stable-1.12 directory. I also updated
there the pt_BR translation for libdvbv5.

-- 
Thanks,
Mauro

Re: Bug#854100: libdvbv5-0: fails to tune / scan

[Mauro Carvalho Chehab]

Em Fri, 17 Feb 2017 22:50:57 +0100
Marcel Heinz <quisquilia@gmx.de> escreveu:

> Hi,
> 
> Am 13. Februar 2017 schrieb Mauro Carvalho Chehab:
> 
> > Em Fri, 10 Feb 2017 22:02:01 +0100
> > Gregor Jasny <gjasny@xxxxxxxxxxxxxx> escreveu:
> >   
> >> Bug report against libdvbv5 is here:
> >> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854100  
> > 
> > There was a bug at the logic that was checking if the frequency was
> > at the range of the local oscillators. This patch should be addressing
> > it:
> > 	https://git.linuxtv.org/v4l-utils.git/commit/?id=5380ad44de416a41b4972e8a9c147ce42b0e3ba0
> > 
> > With that, the logic now seems to be working fine:
> > 
> > $ ./utils/dvb/dvbv5-scan ~/Intelsat-34 --lnbf universal -vv
> > Using LNBf UNIVERSAL
> > 	Universal, Europe
> > 	10800 to 11800 MHz, LO: 9750 MHz
> > 	11600 to 12700 MHz, LO: 10600 MHz
> > ...
> > Seeking for LO for 12.17 MHz frequency
> > LO setting 0: 10.80 MHz to 11.80 MHz
> > LO setting 1: 11.60 MHz to 12.70 MHz
> > Multi-LO LNBf. using LO setting 1 at 10600.00 MHz
> > frequency: 12170.00 MHz, high_band: 1
> > L-Band frequency: 1570.00 MHz (offset = 10600.00 MHz)
> > 
> > I can't really test it here, as my satellite dish uses a different
> > type of LNBf, but, from the above logs, the bug should be fixed.
> > 
> > Marcel,
> > 
> > Could you please test? The patch is already upstream.
> > I added a debug patch after it, in order to help LNBf issues
> > (enabled by using "-vv" command line parameters).  
> 
> I can confirm that 1.12.3 solves the issue for me. Thanks for the fix.

Good!

Thanks for testing!

Regards,
Mauro

Re: Bug#854100: libdvbv5-0: fails to tune / scan

[Marcel Heinz]

Hi,

Am 13. Februar 2017 schrieb Mauro Carvalho Chehab:

> Em Fri, 10 Feb 2017 22:02:01 +0100
> Gregor Jasny <gjasny@xxxxxxxxxxxxxx> escreveu:
> 
>> Bug report against libdvbv5 is here:
>> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=854100
> 
> There was a bug at the logic that was checking if the frequency was
> at the range of the local oscillators. This patch should be addressing
> it:
> 	https://git.linuxtv.org/v4l-utils.git/commit/?id=5380ad44de416a41b4972e8a9c147ce42b0e3ba0
> 
> With that, the logic now seems to be working fine:
> 
> $ ./utils/dvb/dvbv5-scan ~/Intelsat-34 --lnbf universal -vv
> Using LNBf UNIVERSAL
> 	Universal, Europe
> 	10800 to 11800 MHz, LO: 9750 MHz
> 	11600 to 12700 MHz, LO: 10600 MHz
> ...
> Seeking for LO for 12.17 MHz frequency
> LO setting 0: 10.80 MHz to 11.80 MHz
> LO setting 1: 11.60 MHz to 12.70 MHz
> Multi-LO LNBf. using LO setting 1 at 10600.00 MHz
> frequency: 12170.00 MHz, high_band: 1
> L-Band frequency: 1570.00 MHz (offset = 10600.00 MHz)
> 
> I can't really test it here, as my satellite dish uses a different
> type of LNBf, but, from the above logs, the bug should be fixed.
> 
> Marcel,
> 
> Could you please test? The patch is already upstream.
> I added a debug patch after it, in order to help LNBf issues
> (enabled by using "-vv" command line parameters).

I can confirm that 1.12.3 solves the issue for me. Thanks for the fix.

Regards,
Marcel