** Changed in: linux (Ubuntu)
Status: Incomplete => Won't Fix
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https://bugs.launchpad.net/bugs/569644
Title:
DViCO FusionHDTV DVB-T Hybrid card can't tune in newer releases
Status in Linux:
Confirmed
Status in linux package in Ubuntu:
Won't Fix
Bug description:
I've been trying to track down a driver regression in my DViCO
FusionHDTV DVB-T Hybrid card that makes it impossible to tune to DVB
stations. In recent kernels (anything in past two years) the card is
detected and /dev/dvb tree is created but attempting to scan for
channels only results in a 'tuning failed!!!'.
Note: On some occasions the card will not be auto-detected correctly
(usually warm boot), so I have added "options cx88xx card=46 tuner=72"
to /etc/modprobe.d/dvb.conf.
After some investigation I found a comment on
https://help.ubuntu.com/community/MythTV/Install/Gutsy/Tuners that
indicated that the card stopped working around the release of Gutsy
7.10. Since I had an old LiveCD on hand, I tried out Feisty and found
that the card tuned fine, but in newer releases the tuning fails.
Grabbing a few different kernel releases I can see that tuning works
quite happily on the 2.6.17 kernel (very old) but appears to have
broken somewhere around 2.6.22. Bisecting the v4l-dvb tree has the
card turning at r4675, unable to compile r4676 and r4677, then no
/dev/dvb tree being created until r5333 where tuning no longer works.
I'm a bit stuck at this point since debugging linux kernel drivers is
a bit over my head, but I do have a test box which I can happily mess
around with.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-21-generic 2.6.32-21.32
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ubuntu 3290 F.... pulseaudio
/dev/snd/controlC1: ubuntu 3290 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf5000000 irq 16'
Mixer name : 'C-Media CMI9880'
Components : 'HDA:434d4980,00010083,00090002'
Controls : 21
Simple ctrls : 12
Card1.Amixer.info:
Card hw:1 'CX8811'/'Conexant CX8811 at 0xf1000000'
Mixer name : 'CX88'
Components : ''
Controls : 3
Simple ctrls : 2
CurrentDmesg:
[ 50.079091] [drm] nouveau 0000:01:00.0: Allocating FIFO number 1
[ 50.088059] [drm] nouveau 0000:01:00.0: nouveau_channel_alloc:
initialised FIFO 1
[ 50.314299] skge eth0: Link is up at 1000 Mbps, full duplex, flow control
both
[ 50.315802] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 60.508022] eth0: no IPv6 routers present
Date: Sun Apr 25 03:15:48 2010
IwConfig:
lo no wireless extensions.
eth0 no wireless extensions.
LiveMediaBuild: Ubuntu 10.04 "Lucid Lynx" - Release Candidate i386
(20100419.1)
ProcCmdLine: BOOT_IMAGE=/casper/vmlinuz noprompt cdrom-detect/try-usb=true
persistent file=/cdrom/preseed/hostname.seed boot=casper
initrd=/casper/initrd.lz quiet splash -- maybe-ubiquity
ProcEnviron:
LANG=en_US.UTF-8
SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.34
RfKill:
SourcePackage: linux
dmi.bios.date: 09/02/2004
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F4
dmi.board.name: 8I915P Pro
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.modalias:
dmi:bvnAwardSoftwareInternational,Inc.:bvrF4:bd09/02/2004:svn:pn:pvr:rvnGigabyteTechnologyCo.,Ltd.:rn8I915PPro:rvrx.x:cvn:ct3:cvr:
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