[mythtv-users] Nova T PCI

[Tim Sawyer]

On Saturday 12 Apr 2008, Nicolas Will wrote:
> On Sat, 2008-04-12 at 23:29 +0100, Nicolas Will wrote:
> > On Sat, 2008-04-12 at 22:39 +0100, Tim Sawyer wrote:
> > > tjs at mythtv:~$ sudo modprobe cx88_dvb
> > > [sudo] password for tjs:
> > > WARNING: Error inserting videobuf_core
> > > (/lib/modules/2.6.22-14-generic/kernel/drivers/media/video/videobuf-cor
> > >e.ko): Invalid module format
> > > WARNING: Error inserting videobuf_dma_sg
> > > (/lib/modules/2.6.22-14-generic/kernel/drivers/media/video/videobuf-dma
> > >-sg.ko): Unknown symbol in module, or unknown parameter (see dmesg)
> > > WARNING: Error inserting videobuf_dvb
> > > (/lib/modules/2.6.22-14-generic/kernel/drivers/media/video/videobuf-dvb
> > >.ko): Unknown symbol in module, or unknown parameter (see dmesg)
> > > FATAL: Error inserting cx88_dvb
> > > (/lib/modules/2.6.22-14-generic/kernel/drivers/media/video/cx88/cx88-dv
> > >b.ko): Unknown symbol in module, or unknown parameter (see dmesg)
> > >
> > > don't look good.
> > >
> > > dmesg gives:
> > >
> > > [ 5623.736005] videobuf_core: exports duplicate symbol
> > > videobuf_mmap_mapper
> > > (owned by video_buf)
> > > [ 5623.761841] videobuf_dma_sg: disagrees about version of symbol
> > > videobuf_alloc
> > > [ 5623.761844] videobuf_dma_sg: Unknown symbol videobuf_alloc
> > > [ 5623.761910] videobuf_dma_sg: Unknown symbol
> > > videobuf_queue_core_init
> > > [ 5623.780643] videobuf_dvb: disagrees about version of symbol
> > > videobuf_read_stop
> > > [ 5623.780646] videobuf_dvb: Unknown symbol videobuf_read_stop
> > > [ 5623.780668] videobuf_dvb: disagrees about version of symbol
> > > videobuf_waiton
> > > [ 5623.780669] videobuf_dvb: Unknown symbol videobuf_waiton
> > > [ 5623.780732] videobuf_dvb: disagrees about version of symbol
> > > videobuf_read_start
> > > [ 5623.780733] videobuf_dvb: Unknown symbol videobuf_read_start
> > > [ 5623.780813] videobuf_dvb: disagrees about version of symbol
> > > dvb_frontend_detach
> > > [ 5623.780815] videobuf_dvb: Unknown symbol dvb_frontend_detach
> > > [ 5623.780859] videobuf_dvb: disagrees about version of symbol
> > > dvb_unregister_frontend
> > > [ 5623.780861] videobuf_dvb: Unknown symbol dvb_unregister_frontend
> > > [ 5623.780880] videobuf_dvb: disagrees about version of symbol
> > > dvb_register_frontend
> > > [ 5623.780882] videobuf_dvb: Unknown symbol dvb_register_frontend
> > > [ 5623.780965] videobuf_dvb: Unknown symbol videobuf_to_dma
> > > [ 5623.804609] cx88_dvb: Unknown symbol videobuf_dvb_unregister
> > > [ 5623.804638] cx88_dvb: Unknown symbol videobuf_dvb_register
> > >
> > > which is the root of my problems.  Dunno what's wrong or how to fix it
> > > though!
> > > This is a mythbuntu 7.10 system, but it does have a v4l-dvb built from
> > > source
> > > in order to get my Nova T-500 remote working.  Do I need to rebuild a
> > > later
> > > version of that?
> > >
> > > Cheers for any ideas.
> >
> > Indeed, an issue for v4l-dvb.
> >
> > But...
> >
> > You got a mismatch between your dvb-core and the cx88 module.
> >
> > Ununtu does weird things with the kernel modules tree and has a set of
> > modified modules for cx88 that are picked-up in preference to those you
> > compiles and installed.
> >
> > Do:
> >
> > sudo find /lib/modules/2.6.22-14-generic/ubuntu/ -name *cx88* --exec rm
> > -r {} \;
> >
> > All in one line.
> >
> > This removed the Ubuntu cx88 stuff.
> >
> > Then reinstall the v4l-dvb stuff.
> >
> > Reboot is probably simpler.
>
> OK, now this is weird. I've checked, Ubuntu's 2.6.22-14 has no cx88
> stuff in weird places, that was introduced in 2.6.24.

Just noticed that myself...thought I was misinterpreting your command line!

> But you still have a version mismatch between the cx88 module and the
> rest of the dvb-core stuff.
>
> I would be interested in your v4l-dvb compiling and installation
> methodologies.

Followed the instructions here:

http://www.mythtv.org/wiki/index.php/Hauppauge_WinTV_Nova-T_500_PCI

Probably did it around 2008-01-19 22:43, that's the download date on the 
source.  Is it easy to take this off somehow, and go back to the stock ubuntu 
ones? I presume they'll work with the Nova-T-PCI?

Thanks for your time,

Tim.