Same issue here on a Toshiba C850 using Realtek rtl_92* driver. WLAN won't
connect consistently, and when it does it drops after a minute.
Info:
sudo lspci -v
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family
DRAM Controller (rev 09)
Subsystem: Toshiba America Info Systems Device ff1e
Flags: bus master, fast devsel, latency 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core
Processor Family PCI Express Root Port (rev 09) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=06, sec-latency=0
I/O behind bridge: 00004000-00004fff
Memory behind bridge: c0000000-c0ffffff
Prefetchable memory behind bridge: 00000000b0000000-00000000bfffffff
Capabilities: [88] Subsystem: Toshiba America Info Systems Device ff1e
Capabilities: [80] Power Management version 3
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [a0] Express Root Port (Slot+), MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [140] Root Complex Link
Kernel driver in use: pcieport
Kernel modules: shpchp
00:14.0 USB controller: Intel Corporation Panther Point USB xHCI Host
Controller (rev 04) (prog-if 30 [XHCI])
Subsystem: Toshiba America Info Systems Device ff1e
Flags: bus master, medium devsel, latency 0, IRQ 42
Memory at c1200000 (64-bit, non-prefetchable) [size=64K]
Capabilities: [70] Power Management version 2
Capabilities: [80] MSI: Enable+ Count=1/8 Maskable- 64bit+
Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation Panther Point MEI
Controller #1 (rev 04)
Subsystem: Toshiba America Info Systems Device ff1e
Flags: bus master, fast devsel, latency 0, IRQ 43
Memory at c1214000 (64-bit, non-prefetchable) [size=16]
Capabilities: [50] Power Management version 3
Capabilities: [8c] MSI: Enable+ Count=1/1 Maskable- 64bit+
Kernel driver in use: mei
Kernel modules: mei
00:1a.0 USB controller: Intel Corporation Panther Point USB Enhanced Host
Controller #2 (rev 04) (prog-if 20 [EHCI])
Subsystem: Toshiba America Info Systems Device ff1e
Flags: bus master, medium devsel, latency 0, IRQ 16
Memory at c1219000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Capabilities: [58] Debug port: BAR=1 offset=00a0
Capabilities: [98] PCI Advanced Features
Kernel driver in use: ehci_hcd
00:1b.0 Audio device: Intel Corporation Panther Point High Definition Audio
Controller (rev 04)
Subsystem: Toshiba America Info Systems Device ff1e
Flags: bus master, fast devsel, latency 0, IRQ 44
Memory at c1210000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [100] Virtual Channel
Capabilities: [130] Root Complex Link
Kernel driver in use: snd_hda_intel
Kernel modules: snd-hda-intel
00:1c.0 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 1
(rev c4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=07, subordinate=07, sec-latency=0
I/O behind bridge: 00003000-00003fff
Memory behind bridge: c1100000-c11fffff
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: Toshiba America Info Systems Device ff1e
Capabilities: [a0] Power Management version 2
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1c.1 PCI bridge: Intel Corporation Panther Point PCI Express Root Port 2
(rev c4) (prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=08, subordinate=08, sec-latency=0
I/O behind bridge: 00002000-00002fff
Memory behind bridge: c1000000-c10fffff
Capabilities: [40] Express Root Port (Slot+), MSI 00
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Capabilities: [90] Subsystem: Toshiba America Info Systems Device ff1e
Capabilities: [a0] Power Management version 2
Kernel driver in use: pcieport
Kernel modules: shpchp
00:1d.0 USB controller: Intel Corporation Panther Point USB Enhanced Host
Controller #1 (rev 04) (prog-if 20 [EHCI])
Subsystem: Toshiba America Info Systems Device ff1e
Flags: bus master, medium devsel, latency 0, IRQ 23
Memory at c1218000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Capabilities: [58] Debug port: BAR=1 offset=00a0
Capabilities: [98] PCI Advanced Features
Kernel driver in use: ehci_hcd
00:1f.0 ISA bridge: Intel Corporation Panther Point LPC Controller (rev 04)
Subsystem: Toshiba America Info Systems Device ff1e
Flags: bus master, medium devsel, latency 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>
Kernel modules: iTCO_wdt
00:1f.2 SATA controller: Intel Corporation Panther Point 6 port SATA Controller
[AHCI mode] (rev 04) (prog-if 01 [AHCI 1.0])
Subsystem: Toshiba America Info Systems Device ff1e
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 41
I/O ports at 5048 [size=8]
I/O ports at 5054 [size=4]
I/O ports at 5040 [size=8]
I/O ports at 5050 [size=4]
I/O ports at 5020 [size=32]
Memory at c1217000 (32-bit, non-prefetchable) [size=2K]
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Capabilities: [70] Power Management version 3
Capabilities: [a8] SATA HBA v1.0
Capabilities: [b0] PCI Advanced Features
Kernel driver in use: ahci
00:1f.3 SMBus: Intel Corporation Panther Point SMBus Controller (rev 04)
Subsystem: Toshiba America Info Systems Device ff1e
Flags: medium devsel, IRQ 10
Memory at c1215000 (64-bit, non-prefetchable) [size=256]
I/O ports at 5000 [size=32]
Kernel modules: i2c-i801
01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI
Whistler LE [AMD Radeon HD 6625M Graphics] (prog-if 00 [VGA controller])
Subsystem: Toshiba America Info Systems Device fb22
Flags: bus master, fast devsel, latency 0, IRQ 46
Memory at b0000000 (64-bit, prefetchable) [size=256M]
Memory at c0000000 (64-bit, non-prefetchable) [size=128K]
I/O ports at 4000 [size=256]
Expansion ROM at c0040000 [disabled] [size=128K]
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010
<?>
Capabilities: [150] Advanced Error Reporting
Kernel driver in use: fglrx_pci
Kernel modules: fglrx, fglrx_updates, radeon
01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Turks HDMI Audio
[Radeon HD 6000 Series]
Subsystem: Toshiba America Info Systems Device ff1e
Flags: bus master, fast devsel, latency 0, IRQ 45
Memory at c0020000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Legacy Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010
<?>
Capabilities: [150] Advanced Error Reporting
Kernel driver in use: snd_hda_intel
Kernel modules: snd-hda-intel
07:00.0 Ethernet controller: Atheros Communications Inc. AR8162 Fast Ethernet
(rev 10)
Subsystem: Toshiba America Info Systems Device ff1e
Flags: bus master, fast devsel, latency 0, IRQ 7
Memory at c1100000 (64-bit, non-prefetchable) [size=256K]
I/O ports at 3000 [size=128]
Capabilities: [40] Power Management version 3
Capabilities: [58] Express Endpoint, MSI 00
Capabilities: [c0] MSI: Enable- Count=1/16 Maskable+ 64bit+
Capabilities: [d8] MSI-X: Enable- Count=16 Masked-
Capabilities: [100] Advanced Error Reporting
Capabilities: [180] Device Serial Number ff-0e-83-0b-00-26-6c-ff
08:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE
802.11b/g/n WiFi Adapter (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. Device 8212
Flags: bus master, fast devsel, latency 0, IRQ 17
I/O ports at 2000 [size=256]
Memory at c1000000 (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] Virtual Channel
Capabilities: [160] Device Serial Number 01-91-81-fe-ff-4c-e0-00
Kernel driver in use: rtl8192ce
Kernel modules: rtl8192ce
sudo modinfo rtl8192ce
filename: /lib/modules/3.2.0-26-generic/updates/cw-3.3/rtl8192ce.ko
firmware: rtlwifi/rtl8192cfwU_B.bin
firmware: rtlwifi/rtl8192cfwU.bin
firmware: rtlwifi/rtl8192cfw.bin
description: Realtek 8192C/8188C 802.11n PCI wireless
license: GPL
author: Larry Finger <[email protected]>
author: Realtek WlanFAE <[email protected]>
author: lizhaoming <[email protected]>
srcversion: A065A94A6682C70D00CDAE7
alias: pci:v000010ECd00008176sv*sd*bc*sc*i*
alias: pci:v000010ECd00008177sv*sd*bc*sc*i*
alias: pci:v000010ECd00008178sv*sd*bc*sc*i*
alias: pci:v000010ECd00008191sv*sd*bc*sc*i*
depends: rtlwifi,rtl8192c-common,mac80211
vermagic: 3.2.0-26-generic SMP mod_unload modversions
parm: swenc:Set to 1 for software crypto (default 0)
(bool)
parm: ips:Set to 0 to not use link power save (default 1)
(bool)
parm: swlps:Set to 1 to use SW control power save (default 0)
(bool)
parm: fwlps:Set to 1 to use FW control power save (default 1)
(bool)
parm: debug:Set debug level (0-5) (default 0) (int)
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https://bugs.launchpad.net/bugs/902557
Title:
Wireless not working in 12.04 for rtl8192ce (RTL8188CE)
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