Bug 1564859 - rtl8723be_pci crash on kernel 4.16 on HP HP Notebook/81E1, BIOS F.11 07/14/2016
Summary: rtl8723be_pci crash on kernel 4.16 on HP HP Notebook/81E1, BIOS F.11 07/14/2016
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 28
Hardware: x86_64
OS: Linux
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2018-04-08 10:23 UTC by Johannes Hofmann
Modified: 2018-04-14 16:06 UTC (History)
16 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2018-04-14 16:06:24 UTC
Type: Bug

Attachments (Terms of Use)
archive of abrt oops (22.95 KB, application/x-gzip)
2018-04-08 10:48 UTC, Johannes Hofmann
no flags Details

Description Johannes Hofmann 2018-04-08 10:23:21 UTC
Description of problem:
WLAN (rtl8723be) not working with Kernel 4.16 on Fedora 28 beta.

Version-Release number of selected component (if applicable):

How reproducible:
Every time i boot the driver crashes 

Steps to Reproduce:
1. Happens on every boot

Actual results:
kernel bug hits and wlan driver does not work

Expected results:
Working WLAN

Additional info:
Base Board Information
        Manufacturer: HP
        Product Name: 81E1
        Version: KBC Version 71.15
        Serial Number: PFXFE00WB40FOH

#### Output with kernel 4.15.14-300.fc27.x86_64 booted
[root@flummi ~]# lspci -s 02:00.0  -v
02:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
        Subsystem: Hewlett-Packard Company Device 81c1
        Flags: bus master, fast devsel, latency 0, IRQ 18
        I/O ports at 2000 [size=256]
        Memory at 91200000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
        Capabilities: [70] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [140] Device Serial Number 00-23-b7-fe-ff-4c-e0-00
        Capabilities: [150] Latency Tolerance Reporting
        Capabilities: [158] L1 PM Substates
        Kernel driver in use: rtl8723be
        Kernel modules: rtl8723be

Comment 1 Johannes Hofmann 2018-04-08 10:26:06 UTC
With Fedora 27 and kernel 4.15 the WLAN device is working when set ant_sel=2 module option.

Comment 2 Johannes Hofmann 2018-04-08 10:48:03 UTC
Created attachment 1418874 [details]
archive of abrt oops

Comment 3 Johannes Hofmann 2018-04-14 16:06:24 UTC
Module is not in the kernel but from outside repository.
Fixed it by getting the latest Sources. Sorry for the hassle.

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