Marc, I agree it is probably kernel or firmware issue. What should i do in such case? Should I nominate this bug for another package? Which one? I am not skilled in symptom vs. package assignment. In any case, this issue is associated with mythtv. Other viewers (e.g. MeTV) works fine.
========================= Lee, I was in email contact with Hartmut Hackmann who is (probably) author of firmware. His description of issue is as follows: > This issue is at least partly known: > The problem is that the MythTV frontend initializes the (analog) > tuner in a very early state (nothing wrong with that). If the > driver for the tda10046 really needs to download the firmware, this > takes a number of seconds. If any software tries to program the tuner > in this time, this causes a bus conflict on the card. As a result, the > DSP on the 10046 crashes and will not recover. > A clean solution would be to implement a locking mechanism on board > layer but i never did that (not a simple task). He also indicated possible workaround: > I assume that your system starts the mythtv server at boot time with an init > script. This depends on the distribution you use but most have a directory > /etc/init.d. You should find a shell script starting the server (sorry, i > don't > know the exact names). In this script, you might add a "sleep 10" right before > invoking mythserver. If this does not do the trick, you migt add a "modprobe > saa7134" > right before the sleep command. This way it should be possible to get rid of > the > collision i mentioned. But I didn't tested it as I was quite busy last few weeks and this in not a top priority issue I am solving :) -- tda1004x: timeout waiting for DSP ready https://bugs.launchpad.net/bugs/486264 You received this bug notification because you are a member of Mythbuntu Bug Team, which is subscribed to mythtv in ubuntu. Status in “mythtv” package in Ubuntu: Incomplete Bug description: Binary package hint: mythtv MythTV causes problem with DVB-T card firmware. Symptoms are as follows: 1) After mythtv installation everything works fine for many restarts (few days) 2) Suddenly, firmware is not loaded. dmesg gives tda1004x: timeout waiting for DSP ready tda1004x: found firmware revision 80 -- invalid tda1004x: firmware upload failed 3) Uninstall and reinstall of mythtv package revert this state so card (and mythtv) is working again well. dmesg gives tda1004x: found firmware revision 20 -- ok I repeated this 1-2-3 cycle three or four times since karmic-koala install. =========================== Using: Ubuntu 9.10 Karmic Koala mythtv 0.22.0 (both backend and frontend) tv card: AVerTV Digi Super 007 [Multimedia controller: Philips Semiconductors SAA7131/SAA7133/SAA7135 Video Broadcast Decoder (rev d1)] firmware: /lib/firmware/dvb-fe-tda10046.fw installed from linux-firmware-nonfree package _______________________________________________ Mailing list: https://launchpad.net/~mythbuntu-bugs Post to : [email protected] Unsubscribe : https://launchpad.net/~mythbuntu-bugs More help : https://help.launchpad.net/ListHelp
