** Also affects: bcmwl (Ubuntu Natty)
Importance: Undecided
Status: New
** Description changed:
+ SRU information for this bug:
+
+ Rationale
+ In the natty cycle, the brcm80211 module was added to the blacklist file that
gets created when the bcmwl package is installed. For some users, there may be
problems if the wl module and the brcm80211 module are both loaded. The natty
bcmwl package only creates the blacklist file if it doesn't already exist,
thereby preventing brcm80211 from being added to the blacklist.
+
+ Regression potential
+ The regression potential is low to none, given that the blacklist file is
only created/removed when the bcmwl package is installed/removed, and users are
unlikely to be editing this aprticular files, so it should be safe to re-create
at every upgrade of bcmwl.
+
+ How to reproduce (can be done on any system, even one without broadcom
wireless hardware)
+ 1. Create a dummy file, and save it as /etc/modprobe.d/blacklist-bcm43.conf.
+ 2. Install the bcmwl package.
+ 3. Check the contents of /etc/modprobe.d/blacklist-bcm43.conf and notice that
the file is still empty, even though it should be populated with blacklist
entries.
+
+ Once the updated natty package is installed, you should be able to
+ follow the above steps, and have a fully populated blacklist in
+ /etc/modprobe.d/blacklist-bcm43.conf.
+
+ Original bug report follows:
+
I ungraded to 11.04 from 10.10.
While jockey-gtk tells me that I have broadcom sta driver installed, in
fact using 'lsmod' I see that both brcm80211 and wl are enabled, and a
bug of brcm80211 makes my kernel unstable.
I found the 'postinst' script in the package which add a line 'blacklist
brcm80211' to /etc/modprobe.d/blacklist-bcm43, but it is NOT called when
upgraded
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https://bugs.launchpad.net/bugs/776165
Title:
bcmwl-kernel-package does not update modprobe blacklist when upgraded
(e.g. brcm80211)
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