Ubuntu
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[karmic] DVB-T Cinergy T2 stopped working - driver needs a one line fix

Bug #421258 reported by bojo42
16
This bug affects 3 people
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Fix Released
Medium
Leann Ogasawara
Karmic
Fix Released
Medium
Leann Ogasawara

Bug Description

The DVB-T device Terratec Cinergy T2 won't work on karmic, as there is a regression from 2.6.29 to the newer kernels. The issue is documented here http://<email address hidden>/msg07610.html and a fix has already landed at upstreams master repo http://linuxtv.org/hg/v4l-dvb/rev/75be92928287 .

But as 2.6.31 is now RC8 and on the way to gold, this one line patch won't make it into the vanilla release for karmic, therefore it would be great if we (or better named the kernel team ;) could add it to the Ubuntu kernel patches.

Revision history for this message
bojo42 (bojo42) wrote :

just confirmed the issue and the fix on the 2.6.31-8.28 release. the recompiled module for this kernel release is attached for easy testing. just rmmod the default one and insmod this.

Leann Ogasawara (leannogasawara)
Changed in linux (Ubuntu):
importance: Undecided → Medium
status: New → Triaged
tags: added: regression-potential
Leann Ogasawara (leannogasawara)
Changed in linux (Ubuntu):
assignee: nobody → Leann Ogasawara (leannogasawara)
status: Triaged → In Progress
Revision history for this message
Thomas Bechtold (toabctl) wrote :

i can confirm this bug. please fix it for karmic

Revision history for this message
Leann Ogasawara (leannogasawara) wrote :

Hi Guys,

I've applied the patch and posted a test kernel at:

http://people.canonical.com/~ogasawara/lp421258/

If you could quickly test and let me know this kernel works I'll submit for inclusion into Karmic asap. Thanks.

Revision history for this message
bojo42 (bojo42) wrote :

@Leann: sorry i can't test your kernel for the next week or so, since i'm currently in an area where no dvb-t broadcasting is avaibable. but as i said i applied exactly the same patch on the source of 2.6.31-8.28 (from main) and it worked. i hope Thomas can help out in the meantime.

Revision history for this message
bojo42 (bojo42) wrote :

@Leann: i now managed to install your packages via remote on a machine at home (where a dvb-t signal is available) and got it tested by a friend. worked as expected. so thumbs up from my side.

Revision history for this message
Leann Ogasawara (leannogasawara) wrote :

Thanks for the testing and the feedback. I've submitted this to the Ubuntu kernel team to consider carrying this patch in Karmic:

https://lists.ubuntu.com/archives/kernel-team/2009-September/007214.html

Revision history for this message
Tim Gardner (timg-tpi) wrote :

http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-karmic.git;a=commit;h=f5d5e9e0b9253d9b4dafd64952e53d08bcb886d5

Changed in linux (Ubuntu Karmic):
status: In Progress → Fix Committed
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package linux - 2.6.31-10.33

---------------
linux (2.6.31-10.33) karmic; urgency=low

  [ Leann Ogasawara ]

  * [Upstream] dvb-usb: fix tuning with Cinergy T2
    - LP: #421258

  [ Tim Gardner ]

  * [Config] Unconditionally copy files from sub-flavours lists.
    (really, really fix it this time)
    - LP: #423426
  * [Config] Set CONFIG_CACHEFILES=m for all flavours

  [ Upstream Kernel Changes ]

  * ext4: Don't update superblock write time when filesystem is read-only
    - LP: #427822

 -- Tim Gardner <email address hidden> Tue, 15 Sep 2009 07:50:21 -0600

Changed in linux (Ubuntu Karmic):
status: Fix Committed → Fix Released
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