Missing emu10k1 module(s) in 4.3.0 kernel package

[Johan Palmqvist]

After upgrading a machine from Ubuntu wily (15.10) to xenial (16.04) the sound card (Creative Labs SB Audigy 2 ZS) was not detected anymore. As far as I can see the driver module is missing (except for the emu10k1 gameport module) from the latest 4.3.0 kernel packages (in this case 4.3.0-7-generic). Reverting back to kernel 4.2.0 from wily restores the functionality.

# find /lib/modules/4.3.0-7-generic -iregex ".*emu10k1.*"
/lib/modules/4.3.0-7-generic/kernel/drivers/input/gameport/emu10k1-gp.ko

# lsmod | grep -i emu10k1
emu10k1_gp 16384 0
gameport 16384 2 emu10k1_gp

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1536789

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Joseph Salisbury (jsalisbury)]

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.4 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.4-wily

[Johan Palmqvist (johan-palmqvist-home)]

@Brad Figg (brad-figg): I ran "apport-collect 1536789" but unfortunately it segfaults sometime after OAuth is done and before completing it's data collection.

@Joseph Salisbury (jsalisbury): I tested installing and booting the 4.4-wily kernel and the issue still remains. The emu10k1 module doesn't seem to be compiled and packaged with the latest kernels. The module is in the older linux-image-extra-4.2.0-25-generic package from wily (15.10) but not included on a clean xenial (16.04) installation.

[Johan Palmqvist (johan-palmqvist-home)]

After digging a bit further I draw the conclusion that this is potentially related to the issue described in #1534647 even on the xenial packaged 4.3 kernel.