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Message #27316
[Bug 1243409] Re: rtl8192cu module is able to connect to the wifi modem only if the modem is very near
I worked for some hours with kernel 3.12 and here's the situation with respect to version 3.11:
- problem "rtl8192cu module is able to connect to the wifi modem only if the modem is very near (1-2 meters)": SEEM (I hope) to be resolved
- problem "Randomly the connection go down like the modem was turned off (but the modem is still stand up)": SEEM (I hope) to be resolved
- problem "the connection seem to be slow and the signal quality retrieved is low": sometime the connection is still slow and the wifi icon indicates steadily that the signal has 2/3 power (the full signal is never reached)
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https://bugs.launchpad.net/bugs/1243409
Title:
rtl8192cu module is able to connect to the wifi modem only if the
modem is very near
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
Kubuntu 13.04 and kubuntu 13.10: the rtl8192cu module is able to connect to the wifi modem only if the modem is very near (1-2 meters). Randomly the connection go down like the modem was turned off (but the modem is still stand up).
With 13.04 I was able to install proprietary driver from this URL: https://code.google.com/p/realtek-8188cus-wireless-drivers-3444749-ubuntu-1304/
With 13.10 I'm able to install the deb, but the system will become unstable at the next boot, and the new driver will not work..
Below I report the data of my operating system.
#cat /proc/version_signature
Ubuntu 3.11.0-12.19-generic 3.11.3
#sudo lspci -vnvn
00:00.0 Host bridge [0600]: Intel Corporation 82865G/PE/P DRAM Controller/Host-Hub Interface [8086:2570] (rev 02)
Subsystem: Gigabyte Technology Co., Ltd GA-8IPE1000 Pro2 motherboard (865PE) [1458:2570]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
Region 0: Memory at e0000000 (32-bit, prefetchable) [size=128M]
Capabilities: [e4] Vendor Specific Information: Len=06 <?>
Capabilities: [a0] AGP version 3.0
Status: RQ=32 Iso- ArqSz=2 Cal=2 SBA+ ITACoh- GART64- HTrans- 64bit- FW+ AGP3+ Rate=x4,x8
Command: RQ=1 ArqSz=0 Cal=2 SBA+ AGP+ GART64- 64bit- FW- Rate=x8
Kernel driver in use: agpgart-intel
00:01.0 PCI bridge [0604]: Intel Corporation 82865G/PE/P AGP Bridge [8086:2571] (rev 02) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64
Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
Memory behind bridge: e8000000-e9ffffff
Prefetchable memory behind bridge: d0000000-dfffffff
Secondary status: 66MHz+ FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
00:06.0 System peripheral [0880]: Intel Corporation 82865G/PE/P Processor to I/O Memory Interface [8086:2576] (rev 02)
Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Region 0: Memory at fecf0000 (32-bit, non-prefetchable) [size=4K]
00:1d.0 USB controller [0c03]: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #1 [8086:24d2] (rev 02) (prog-if 00 [UHCI])
Subsystem: Gigabyte Technology Co., Ltd GA-8IPE1000/8KNXP motherboard [1458:24d2]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 4: I/O ports at bc00 [size=32]
Kernel driver in use: uhci_hcd
00:1d.1 USB controller [0c03]: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #2 [8086:24d4] (rev 02) (prog-if 00 [UHCI])
Subsystem: Gigabyte Technology Co., Ltd GA-8IPE1000 Pro2 motherboard (865PE) [1458:24d2]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 19
Region 4: I/O ports at b000 [size=32]
Kernel driver in use: uhci_hcd
00:1d.2 USB controller [0c03]: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #3 [8086:24d7] (rev 02) (prog-if 00 [UHCI])
Subsystem: Gigabyte Technology Co., Ltd GA-8IPE1000 Pro2 motherboard (865PE) [1458:24d2]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin C routed to IRQ 18
Region 4: I/O ports at b400 [size=32]
Kernel driver in use: uhci_hcd
00:1d.3 USB controller [0c03]: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #4 [8086:24de] (rev 02) (prog-if 00 [UHCI])
Subsystem: Gigabyte Technology Co., Ltd GA-8IPE1000 Pro2 motherboard (865PE) [1458:24d2]
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 4: I/O ports at b800 [size=32]
Kernel driver in use: uhci_hcd
00:1d.7 USB controller [0c03]: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller [8086:24dd] (rev 02) (prog-if 20 [EHCI])
Subsystem: Gigabyte Technology Co., Ltd GA-8IPE1000 Pro2 motherboard (865PE) [1458:5006]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin D routed to IRQ 23
Region 0: Memory at ec100000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: ehci-pci
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 PCI Bridge [8086:244e] (rev c2) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Bus: primary=00, secondary=02, subordinate=02, sec-latency=32
I/O behind bridge: 0000a000-0000afff
Memory behind bridge: ea000000-ebffffff
Prefetchable memory behind bridge: ec000000-ec0fffff
Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
00:1f.0 ISA bridge [0601]: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC Interface Bridge [8086:24d0] (rev 02)
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Kernel driver in use: lpc_ich
00:1f.1 IDE interface [0101]: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE Controller [8086:24db] (rev 02) (prog-if 8a [Master SecP PriP])
Subsystem: Gigabyte Technology Co., Ltd GA-8IPE1000 Pro2 motherboard (865PE) [1458:24d2]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 18
Region 0: I/O ports at 01f0 [size=8]
Region 1: I/O ports at 03f4 [size=1]
Region 2: I/O ports at 0170 [size=8]
Region 3: I/O ports at 0374 [size=1]
Region 4: I/O ports at f000 [size=16]
Region 5: Memory at 80000000 (32-bit, non-prefetchable) [size=1K]
Kernel driver in use: ata_piix
00:1f.3 SMBus [0c05]: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus Controller [8086:24d3] (rev 02)
Subsystem: Gigabyte Technology Co., Ltd GA-8IPE1000 Pro2 motherboard (865PE) [1458:24d2]
Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin B routed to IRQ 9
Region 4: I/O ports at 1400 [size=32]
00:1f.5 Multimedia audio controller [0401]: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller [8086:24d5] (rev 02)
Subsystem: Gigabyte Technology Co., Ltd GA-8IPE1000/8KNXP motherboard [1458:a002]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 17
Region 0: I/O ports at d800 [size=256]
Region 1: I/O ports at dc00 [size=64]
Region 2: Memory at ec101000 (32-bit, non-prefetchable) [size=512]
Region 3: Memory at ec102000 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: snd_intel8x0
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation NV36 [GeForce FX 5700LE] [10de:0343] (rev a1) (prog-if 00 [VGA controller])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 248 (1250ns min, 250ns max)
Interrupt: pin A routed to IRQ 16
Region 0: Memory at e8000000 (32-bit, non-prefetchable) [size=16M]
Region 1: Memory at d0000000 (32-bit, prefetchable) [size=256M]
[virtual] Expansion ROM at e9000000 [disabled] [size=128K]
Capabilities: [60] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [44] AGP version 3.0
Status: RQ=32 Iso- ArqSz=0 Cal=3 SBA+ ITACoh- GART64- HTrans- 64bit- FW+ AGP3+ Rate=x4,x8
Command: RQ=32 ArqSz=2 Cal=0 SBA+ AGP+ GART64- 64bit- FW- Rate=x8
Kernel driver in use: nvidia
02:02.0 Multimedia video controller [0400]: Brooktree Corporation Bt878 Video Capture [109e:036e] (rev 11)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32 (4000ns min, 10000ns max)
Interrupt: pin A routed to IRQ 22
Region 0: Memory at ec000000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data
pcilib: sysfs_read_vpd: read failed: Connection timed out
Not readable
Capabilities: [4c] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: bttv
02:02.1 Multimedia controller [0480]: Brooktree Corporation Bt878 Audio Capture [109e:0878] (rev 11)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32 (1000ns min, 63750ns max)
Interrupt: pin A routed to IRQ 5
Region 0: Memory at ec001000 (32-bit, prefetchable) [size=4K]
Capabilities: [44] Vital Product Data
pcilib: sysfs_read_vpd: read failed: Connection timed out
Not readable
Capabilities: [4c] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
02:05.0 FireWire (IEEE 1394) [0c00]: Texas Instruments TSB43AB23 IEEE-1394a-2000 Controller (PHY/Link) [104c:8024] (prog-if 10 [OHCI])
Subsystem: Gigabyte Technology Co., Ltd Motherboard [1458:1000]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32 (500ns min, 1000ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 21
Region 0: Memory at eb008000 (32-bit, non-prefetchable) [size=2K]
Region 1: Memory at eb004000 (32-bit, non-prefetchable) [size=16K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME+
Kernel driver in use: firewire_ohci
02:09.0 Ethernet controller [0200]: Marvell Technology Group Ltd. 88E8001 Gigabit Ethernet Controller [11ab:4320] (rev 13)
Subsystem: Gigabyte Technology Co., Ltd Marvell 88E8001 Gigabit Ethernet Controller (Gigabyte) [1458:e000]
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 32 (5750ns min, 7750ns max), Cache Line Size: 32 bytes
Interrupt: pin A routed to IRQ 20
Region 0: Memory at eb000000 (32-bit, non-prefetchable) [size=16K]
Region 1: I/O ports at a000 [size=256]
[virtual] Expansion ROM at ec020000 [disabled] [size=128K]
Capabilities: [48] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=7 DScale=1 PME-
Capabilities: [50] Vital Product Data
Product Name: Yukon Gigabit Ethernet 10/100/1000Base-T Adapter
Read-only fields:
[PN] Part number: Yukon 88E8001
[EC] Engineering changes: Rev. 1.3
[MN] Manufacture ID: 4d 61 72 76 65 6c 6c
[SN] Serial number: AbCdEfG3dbc13
[CP] Extended capability: 01 10 cc 03
[RV] Reserved: checksum good, 10 byte(s) reserved
Read/write fields:
[RW] Read-write area: 121 byte(s) free
End
Kernel driver in use: skge
#lsb_release -rd
Description: Ubuntu 13.10
Release: 13.10
---
ApportVersion: 2.12.5-0ubuntu2
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: omichee 2654 F.... pulseaudio
DistroRelease: Ubuntu 13.10
HibernationDevice: RESUME=UUID=36b266f6-492c-4779-97ed-0538591223fd
InstallationDate: Installed on 2010-05-04 (1267 days ago)
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MarkForUpload: True
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-12-generic root=UUID=74373c9f-2232-4e4b-b28a-ab13e36e0a01 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
RelatedPackageVersions:
linux-restricted-modules-3.11.0-12-generic N/A
linux-backports-modules-3.11.0-12-generic N/A
linux-firmware 1.116
Tags: saucy
Uname: Linux 3.11.0-12-generic i686
UpgradeStatus: Upgraded to saucy on 2013-10-20 (2 days ago)
UserGroups: adm admin audio cdrom dialout dip fax floppy fuse lpadmin plugdev sambashare tape vboxusers video
dmi.bios.date: 01/08/2004
dmi.bios.vendor: Award Software International, Inc.
dmi.bios.version: F1
dmi.board.name: 8IPE1000P-G
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.type: 3
dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF1:bd01/08/2004:svn:pn:pvr:rvnGigabyteTechnologyCo.,Ltd.:rn8IPE1000P-G:rvrx.x:cvn:ct3:cvr:
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References
