Public bug reported:
This bug duplicate
https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1379524 but it
marked expired.
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/buildd/linux-3.19.0/net/wireless/sme.c:800 cfg80211_roamed+0x91/0xa0
[cfg80211]()
[29218.308179] Modules linked in: rfcomm bnep binfmt_misc bbswitch(OE)
nls_iso8859_1 intel_rapl iosf_mbi hp_wmi sparse_keymap x86_pkg_temp_thermal
intel_powerclamp snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic
wl(POE) snd_hda_intel snd_hda_controller coretemp kvm_intel snd_hda_codec
snd_hwdep btusb kvm snd_pcm uvcvideo crct10dif_pclmul snd_seq_midi
snd_seq_midi_event bluetooth snd_rawmidi crc32_pclmul videobuf2_vmalloc snd_seq
videobuf2_memops videobuf2_core ghash_clmulni_intel v4l2_common aesni_intel
videodev media aes_x86_64 lrw gf128mul glue_helper snd_seq_device ablk_helper
snd_timer dm_multipath cryptd scsi_dh i915 snd cfg80211 soundcore hp_accel
joydev serio_raw lis3lv02d input_polldev shpchp drm_kms_helper hp_wireless
mei_me wmi drm video i2c_algo_bit mei intel_smartconnect lpc_ich
[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_netbios_ns
nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack
iptable_filter parport_pc ppdev ip_tables x_tables lp parport autofs4
hid_generic usbhid hid psmouse ahci r8169 libahci mii
[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] [<ffffffff817c2235>] dump_stack+0x45/0x57
[29218.308250] [<ffffffff8107595a>] warn_slowpath_common+0x8a/0xc0
[29218.308252] [<ffffffff81075a4a>] warn_slowpath_null+0x1a/0x20
[29218.308260] [<ffffffffc0454a81>] cfg80211_roamed+0x91/0xa0 [cfg80211]
[29218.308290] [<ffffffffc0a0b9fb>] wl_notify_roaming_status+0xcb/0x150 [wl]
[29218.308312] [<ffffffffc0a0875a>] wl_event_handler+0x6a/0x230 [wl]
[29218.308333] [<ffffffffc0a086f0>] ? wl_free_wdev.isra.23+0x80/0x80 [wl]
[29218.308336] [<ffffffff81094759>] kthread+0xc9/0xe0
[29218.308339] [<ffffffff81094690>] ? kthread_create_on_node+0x1c0/0x1c0
[29218.308342] [<ffffffff817c9298>] ret_from_fork+0x58/0x90
[29218.308344] [<ffffffff81094690>] ? kthread_create_on_node+0x1c0/0x1c0
[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 6.30.223.248+bdcom-0ubuntu2
ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
Uname: Linux 3.19.0-16-generic x86_64
NonfreeKernelModules: wl
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)
** Affects: bcmwl (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug vivid
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to bcmwl in Ubuntu.
https://bugs.launchpad.net/bugs/1454717
Title:
Weak wifi signal and frequency disconnects
Status in bcmwl package in Ubuntu:
New
Bug description:
This bug duplicate
https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1379524 but it
marked expired.
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/buildd/linux-3.19.0/net/wireless/sme.c:800 cfg80211_roamed+0x91/0xa0
[cfg80211]()
[29218.308179] Modules linked in: rfcomm bnep binfmt_misc bbswitch(OE)
nls_iso8859_1 intel_rapl iosf_mbi hp_wmi sparse_keymap x86_pkg_temp_thermal
intel_powerclamp snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_codec_generic
wl(POE) snd_hda_intel snd_hda_controller coretemp kvm_intel snd_hda_codec
snd_hwdep btusb kvm snd_pcm uvcvideo crct10dif_pclmul snd_seq_midi
snd_seq_midi_event bluetooth snd_rawmidi crc32_pclmul videobuf2_vmalloc snd_seq
videobuf2_memops videobuf2_core ghash_clmulni_intel v4l2_common aesni_intel
videodev media aes_x86_64 lrw gf128mul glue_helper snd_seq_device ablk_helper
snd_timer dm_multipath cryptd scsi_dh i915 snd cfg80211 soundcore hp_accel
joydev serio_raw lis3lv02d input_polldev shpchp drm_kms_helper hp_wireless
mei_me wmi drm video i2c_algo_bit mei intel_smartconnect lpc_ich
[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_netbios_ns
nf_conntrack_broadcast nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack
iptable_filter parport_pc ppdev ip_tables x_tables lp parport autofs4
hid_generic usbhid hid psmouse ahci r8169 libahci mii
[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] [<ffffffff817c2235>] dump_stack+0x45/0x57
[29218.308250] [<ffffffff8107595a>] warn_slowpath_common+0x8a/0xc0
[29218.308252] [<ffffffff81075a4a>] warn_slowpath_null+0x1a/0x20
[29218.308260] [<ffffffffc0454a81>] cfg80211_roamed+0x91/0xa0 [cfg80211]
[29218.308290] [<ffffffffc0a0b9fb>] wl_notify_roaming_status+0xcb/0x150 [wl]
[29218.308312] [<ffffffffc0a0875a>] wl_event_handler+0x6a/0x230 [wl]
[29218.308333] [<ffffffffc0a086f0>] ? wl_free_wdev.isra.23+0x80/0x80 [wl]
[29218.308336] [<ffffffff81094759>] kthread+0xc9/0xe0
[29218.308339] [<ffffffff81094690>] ? kthread_create_on_node+0x1c0/0x1c0
[29218.308342] [<ffffffff817c9298>] ret_from_fork+0x58/0x90
[29218.308344] [<ffffffff81094690>] ? kthread_create_on_node+0x1c0/0x1c0
[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 6.30.223.248+bdcom-0ubuntu2
ProcVersionSignature: Ubuntu 3.19.0-16.16-generic 3.19.3
Uname: Linux 3.19.0-16-generic x86_64
NonfreeKernelModules: wl
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)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1454717/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
