Weak wifi signal and frequency disconnects
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
Broadcom Team |
Confirmed
|
High
|
Unassigned |
Bug Description
This bug duplicate https:/
Symptoms same - on my notebook HP Pavilion p170nr with BCM43142 chip has very low and unstable wi-fi signal. I even can't work from far room because of permanent disconnects and very low speed. Windows 8 in same place work fine also all phones.
Also connection frequency disappear. Disconnects don't depend on signal level. Connection may break even near router and hi (relative) signal. I changed router but this didn't help.
I don't know if it help, but I get this message in dmesg log
[29218.308151] ------------[ cut here ]------------
[29218.308177] WARNING: CPU: 2 PID: 524 at /build/
[29218.308179] Modules linked in: rfcomm bnep binfmt_misc bbswitch(OE) nls_iso8859_1 intel_rapl iosf_mbi hp_wmi sparse_keymap x86_pkg_
[29218.308208] mac_hid ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 xt_hl ip6t_rt nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 nf_log_ipv4 nf_log_common xt_LOG xt_limit xt_tcpudp xt_addrtype nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack ip6table_filter ip6_tables nf_conntrack_
[29218.308231] CPU: 2 PID: 524 Comm: wl_event_handle Tainted: P W OE 3.19.0-16-generic #16-Ubuntu
[29218.308232] Hardware name: Hewlett-Packard HP Pavilion 15 Notebook PC /2281, BIOS F.12 08/18/2014
[29218.308233] ffffffffc0478a78 ffff8801d55c3da8 ffffffff817c2235 0000000000000007
[29218.308236] 0000000000000000 ffff8801d55c3de8 ffffffff8107595a ffff8801d23c9078
[29218.308238] ffff8801d26bb000 ffff8801d4a52b40 000000000000009f ffff8801c5b74b40
[29218.308240] Call Trace:
[29218.308246] [<ffffffff817c2
[29218.308250] [<ffffffff81075
[29218.308252] [<ffffffff81075
[29218.308260] [<ffffffffc0454
[29218.308290] [<ffffffffc0a0b
[29218.308312] [<ffffffffc0a08
[29218.308333] [<ffffffffc0a08
[29218.308336] [<ffffffff81094
[29218.308339] [<ffffffff81094
[29218.308342] [<ffffffff817c9
[29218.308344] [<ffffffff81094
[29218.308346] ---[ end trace 0970ead2c419c952 ]---
[29222.548357] cfg80211: Calling CRDA to update world regulatory domain
[29222.575949] cfg80211: World regulatory domain updated:
[29222.575952] cfg80211: DFS Master region: unset
[29222.575953] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[29222.575956] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[29222.575958] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[29222.575959] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[29222.575961] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[29222.575962] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[29228.744616] cfg80211: Calling CRDA to update world regulatory domain
[29228.753685] cfg80211: World regulatory domain updated:
[29228.753696] cfg80211: DFS Master region: unset
[29228.753701] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[29228.753711] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[29228.753718] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[29228.753725] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm), (N/A)
[29228.753731] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
[29228.753735] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm), (N/A)
ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: bcmwl-kernel-source 6.30.223.
ProcVersionSign
Uname: Linux 3.19.0-16-generic x86_64
NonfreeKernelMo
ApportVersion: 2.17.2-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity
Date: Wed May 13 16:50:24 2015
InstallationDate: Installed on 2014-11-23 (171 days ago)
InstallationMedia:
SourcePackage: bcmwl
UpgradeStatus: No upgrade log present (probably fresh install)
Changed in bcmwl (Ubuntu): | |
importance: | Undecided → High |
affects: | bcmwl (Ubuntu) → broadcom |
Status changed to 'Confirmed' because the bug affects multiple users.