TBSDTV Community Forum

I have been using a 6920 and a 6981 for about 3 months. Suddenly lost all inputs after an upgrade. TBS's excellent drivers and instructions meant I was not at all worried and downloaded the linux-tbs-drivers_110928_V10 file.
sudo -i to become root
Unpacked the linux-tbs-drivers.tar.bz2 file...no problem
cd linux-tbs-drivers ...no problem
./v4l/tbs-x86_64.sh ...Reported ready for 64 bit compile
make && make install ...No erors but two warnings about an incorrect pointer early on
Restart ...Mythtv could add one input but not scan using it

alf@Judge:~$ dmesg | grep cx23885
[ 8.789143] cx23885 driver version 0.0.2 loaded
[ 8.789231] cx23885 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 8.789698] CORE cx23885[0]: subsystem: 6920:8888, board: TurboSight TBS 6920 [card=14,autodetected]
[ 9.517835] cx23885_dvb_register() allocating 1 frontend(s)
[ 9.517956] cx23885[0]: cx23885 based dvb card
[ 9.577741] DVB: registering new adapter (cx23885[0])
[ 9.578417] cx23885_dev_checkrevision() Hardware revision = 0xb0
[ 9.578429] cx23885[0]/0: found at 0000:02:00.0, rev: 2, irq: 16, latency: 0, mmio: 0xfe600000
[ 9.578440] cx23885 0000:02:00.0: setting latency timer to 64
[ 9.578553] cx23885 0000:02:00.0: irq 45 for MSI/MSI-X

Does this mean it only sees the 6920 card?

So I thought I would reinstall Ubuntu 11.04, kernal 2.6.38-8 to continue using Mythtv, and await new drivers.
After the reinstall exactly the same problem occurred, with the same dmesg I think.

In case it isn't obvious I am very new to linux and ubuntu and do not understand why my reinstall did not work when my original setup from the same disc worked.

There were two problems, neither of which are referred to in the tbs readme files:

1) The give-away was the 'dmesg | grep cx23885' command only seeing one PCIe card. Swapping the PCIe cards in the slots gave the other one only. It seems to me that there is a setting in the motherboard BIOS that uses both slots for one, powerful graphics card. If I am wrong please correct me. I reset the BIOS and both cards were recognised by dmesg | grep cx2388.

2) I had moved all the tbs drivers to a file called '/TBSdrivers'. This led to some warnings in the make command that was obviously expecting them to be in '/linux-tbs-drivers_110928_V10' as when unzipped. Renaming the file enabled the make command to work without warnings or errors.

I hope my four days of struggle might help some other ubuntu, Mythtv, linux, tbs user.

These are really good cards...

Mythtv works without blemish and has three inputs.