Bug 1123659 - amd_iommu must be disabled for BCM43228 to work
Summary: amd_iommu must be disabled for BCM43228 to work
Keywords:
Status: CLOSED NOTABUG
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 20
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-07-27 20:09 UTC by Alexander Lindqvist
Modified: 2014-07-28 07:43 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-07-28 00:51:55 UTC
Type: Bug
Embargoed:

Attachments (Terms of Use)

Description Alexander Lindqvist 2014-07-27 20:09:22 UTC 
Description of problem:
HP ELitebook 745 G2 with Broadcom BCM43228 WLAN.

Version-Release number of selected component (if applicable):
3.15.6-200.fc20.x86_64

broadcom-wl-6.30.223.248-1
kmod-wl-6.30.223.248-1

How reproducible:


Steps to Reproduce:
1. Install kmod-wl and reboot as brcmsmac does not support BCM43228 chipset
2. WIFI availible as wlo1 but unable to find any accesspoints and you cant initiate a scan.

Actual results:


Expected results:


Additional info:

kernel parameter amd_iommu=off solves this problem.
Comment 1 Josh Boyer 2014-07-28 00:51:55 UTC 
We don't support the proprietary wl driver and you have a workaround.
Comment 2 Alexander Lindqvist 2014-07-28 07:43:10 UTC 
Yes this was more like an informational report. Unless there is a problem with the amd_iommu? Report is also sent to Broadcom about this.
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