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| Problems with PlayTV and LH7.1 http://forums.linhes.org/viewtopic.php?f=21&t=22313 |
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| Author: | bigtoedsloth [ Sun Nov 13, 2011 6:01 am ] |
| Post subject: | Problems with PlayTV and LH7.1 |
I run a Sony PlayTV as a DVB-T tuner. It worked fine in the previous kernel (LH 7.00.03 - I'm not sure of the kernel name), but not in this one (2.6.39). Problem 1: The tuner wasn't showing up in mythtv and there was no /dev/dvb being created. Looking through the kernel logs there was none of the usual messages about "identified Sony PlayTV tuner" and "loading firmware" etc. Turns out if I explicitly unload the relevant tuner kernel modules (dvb-usb-dib0700 and dvb-usb) then reload them (in the opposite order) I get more comforting messages in the kernel log and a /dev/dvb directory. Excellent I thought ... for a minute or two ... Problem 2: Starting mythbackend causes a kernel oops. The first few lines look like this Code: Nov 13 21:45:00 userver1 kernel: [ 841.287488] BUG: unable to handle kernel NULL pointer dereference at (null) so there's no question it's related to the tuner driver.
Nov 13 21:45:00 userver1 kernel: [ 841.287508] IP: [<f9ae72a2>] dvb_usb_fe_wakeup+0x22/0x60 [dvb_usb] Nov 13 21:45:00 userver1 kernel: [ 841.287525] *pde = 00000000 Nov 13 21:45:00 userver1 kernel: [ 841.287534] Oops: 0000 [#1] PREEMPT SMP I'm writing in the forum rather than submitting a bug because I'm not sure if it's something that I'm doing wrong ... although I can't think what that might be as it was all working nicely in the previous kernel. Any suggestions are most appreciated as I am rapidly swimming out of my depth. |
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| Author: | bigtoedsloth [ Sun Nov 13, 2011 6:45 am ] |
| Post subject: | |
It turns out that reverting the v4l-dvb package fixed my problem. See this thread for the answer http://knoppmyth.net/phpBB2/viewtopic.php?t=22312. |
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