Public bug reported:
The contained kernel modules:
/lib/modules/3.8.0-26-generic/kernel/drivers/platform/x86/asus-wmi.ko
/lib/modules/3.8.0-26-generic/kernel/drivers/platform/x86/asus-nb-wmi.ko
are built incompatibly. That is, asus-nb-wmi depends on asus-wmi. asus-
wmi loads successfully. But when then attempting to load asus-nb-wmi,
you get (syslog messages):
.... asus_nb_wmi: disagrees about version of symbol asus_wmi_register_driver
Jul 5 21:34:39 eyal-UX31A kernel: [ 5.376532] asus_nb_wmi: Unknown symbol
asus_wmi_register_driver (err -22)
Jul 5 21:34:39 eyal-UX31A kernel: [ 5.377287] asus_nb_wmi: disagrees about
version of symbol asus_wmi_unregister_driver
Jul 5 21:34:39 eyal-UX31A kernel: [ 5.377361] asus_nb_wmi: Unknown symbol
asus_wmi_unregister_driver (err -22)
Steps I took that successfully solved the problem:
I rebuilt the package manually:
sudo apt-get build-dep linux-image-extra-3.8.0-26-generic &&
apt-get source linux-image-extra-3.8.0-26-generic &&
cd linux-3.8.0 &&
fakeroot debian/rules binary
I re-installed the packages:
sudo dpkg -i linux-doc_3.8.0-26.38_all.deb linux-headers-3.8.0-26*deb
linux-image-*deb linux-libc-dev*deb linux-tools-*deb
I rebooted.
The modules were then loaded successfully.
The module that fails to load because of the bug: asus-nb-wmi is responsible
for the support for the UX31A laptop (Zenbook Prime) keyboard backlight support
and possibly other functionality.
By fixing this module I could finally regain control of my keyboard backlight.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1198556
Title:
The module "asus-nb-wmi" and its dependency "asus-wmi" are
incompatible
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