Re: DVBSky T980C CI issues (kernel 4.0.x)

[Jurgen Kramer <gtmkramer@xs4all.nl>]

Hi Olli,

On Thu, 2016-01-28 at 19:26 +0200, Olli Salonen wrote:
> Hi Jürgen,
> 
> Did you get anywhere with this?
> 
> I have a clone of your card and was just starting to look at this
> issue. Kernel 3.19 seems to work ok, but 4.3 not. Did you have any
> time to try to pinpoint this more?
No, unfortunately not. I have spend a few hours adding printk's but it
did not get me any closer what causes the issue. This really needs
investigation from someone who is more familiar with linux media.

Last thing I tried was the latest (semi open) drivers from dvbsky on a
4.3 kernel. Here the CI and CAM registered successfully.

Greetings,
Jurgen

> Cheers,
> -olli
> 
> On 12 September 2015 at 10:02, Jurgen Kramer <gtmkramer@xs4all.nl>
> wrote:
> > On Fri, 2015-09-11 at 22:01 +0200, Torbjorn Jansson wrote:
> > > On 2015-08-23 19:50, Jurgen Kramer wrote:
> > > > 
> > > > On Sun, 2015-07-12 at 12:38 +0200, Jurgen Kramer wrote:
> > > > > I have been running a couple of DVBSky T980C's with CIs with
> > > > > success
> > > > > using an older kernel (3.17.8) with media-build and some
> > > > > added patches
> > > > > from the mailing list.
> > > > > 
> > > > > I thought lets try a current 4.0 kernel to see if I no longer
> > > > > need to be
> > > > > running a custom kernel. Everything works just fine except
> > > > > the CAM
> > > > > module. I am seeing these:
> > > > > 
> > > > > [  456.574969] dvb_ca adapter 0: Invalid PC card inserted :(
> > > > > [  456.626943] dvb_ca adapter 1: Invalid PC card inserted :(
> > > > > [  456.666932] dvb_ca adapter 2: Invalid PC card inserted :(
> > > > > 
> > > > > The normal 'CAM detected and initialised' messages to do show
> > > > > up with
> > > > > 4.0.8
> > > > > 
> > > > > I am not sure what changed in the recent kernels, what is
> > > > > needed to
> > > > > debug this?
> > > > > 
> > > > > Jurgen
> > > > Retest. I've isolated one T980C on another PC with kernel
> > > > 4.1.5, still the same 'Invalid PC card inserted :(' message.
> > > > Even after installed today's media_build from git no
> > > > improvement.
> > > > 
> > > > Any hints where to start looking would be appreciated!
> > > > 
> > > > cimax2.c|h do not seem to have changed. There are changes to
> > > > dvb_ca_en50221.c
> > > > 
> > > > Jurgen
> > > > 
> > > 
> > > did you get it to work?
> > 
> > No, it needs a thorough debug session. So far no one seems able to
> > help...
> > 
> > > i got a dvbsky T980C too for dvb-t2 reception and so far the only
> > > drivers that have worked at all is the ones from dvbsky directly.
> > > 
> > > i was very happy when i noticed that recent kernels have support
> > > for it
> > > built in but unfortunately only the modules and firmware loads
> > > but then
> > > nothing actually works.
> > > i use mythtv and it complains a lot about the signal, running
> > > femon also
> > > produces lots of errors.
> > > 
> > > so i had to switch back to kernel 4.0.4 with mediabuild from
> > > dvbsky.
> > > 
> > > if there were any other dvb-t2 card with ci support that had
> > > better
> > > drivers i would change right away.
> > > 
> > > one problem i have with the mediabuilt from dvbsky is that at
> > > boot the
> > > cam never works and i have to first tune a channel, then remove
> > > and
> > > reinstert the cam to get it to work.
> > > without that nothing works.
> > > 
> > > and finally a problem i ran into when i tried mediabuilt from
> > > linuxtv.org.
> > > fedora uses kernel modules with .ko.xz extension so when you
> > > install the
> > > mediabuilt modulels you get one modulename.ko and one
> > > modulename.ko.xz
> > > 
> > > before a make install from mediabuild overwrote the needed
> > > modules.
> > > any advice on how to handle this now?
> > > 
> > > 
> > 
> > 
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