Public bug reported:
System: Kubuntu i386 Fresh feisty upgraded 1st october to gutsy
Prism Chipset ISL3890/ISL3886
Kernel: 2.6.22-12-generic
(anything else useful?)
Since upgrade to gutsy and 2.6.22-12-generic, my Wifi connection is best
described as flaky : I have 512b/s ADSL - 64kb download max. And when i
apt-get update it can take 30 minutes... i get speeds between 15kb/s and
2000b/s, with no error messages seen anywhere....
I dont have any messages about the connection dropping, nothing out of
the ordinary in dmesg, but when i ping www.google.fr, for example, I get
around 20% 50% packet loss, depending on tests...
I didnt have this problem before with Feisty, and my ISP is functioning
OK. When I plug in the ethernet cable to the router/modem, wifi is
dropped and eth0 activated (nice :) ) and i have no loss with pings and
I have a constant 64kb download, which rules out an upstream ISP
problem.
lspci -vv of my card:
05:09.0 Network controller: Intersil Corporation ISL3890 [Prism GT/Prism
Duette]/ISL3886 [Prism Javelin/Prism Xbow] (rev 01)
Subsystem: Z-Com, Inc. XG-900 and clones Wireless Adapter
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 64 (2500ns min, 7000ns max), Cache Line Size: 128 bytes
Interrupt: pin A routed to IRQ 18
Region 0: Memory at f8310000 (32-bit, non-prefetchable) [size=8K]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
currently re dist-upgrading since my switch to gutsy last week, so If repaired
afer, ill let you know.
Otherwise, open to sugestions or how to get you guys more info.
David
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: connection gutsy prism slow wifi
** Summary changed:
- wifi connection dropping
+ Prism Wifi connection losing packets and being slow
** Tags added: connection gutsy prism slow wifi
** Description changed:
- Prism Chipset:
- Since upgrade to gutsy and 2.6.22-12-generic, my Wifi connection is best
described as flaky : I have 512b/s ADSL - 64kb download max. And when i apt-get
update it can take 30 minutes... i get speeds between 15kb/s and 2000b/s, with
no error messages seen anywhere....
+ System: Kubuntu i386 Fresh feisty upgraded 1st october to gutsy
+ Prism Chipset ISL3890/ISL3886
+ Kernel: 2.6.22-12-generic
+ (anything else useful?)
+
+ Since upgrade to gutsy and 2.6.22-12-generic, my Wifi connection is best
+ described as flaky : I have 512b/s ADSL - 64kb download max. And when i
+ apt-get update it can take 30 minutes... i get speeds between 15kb/s and
+ 2000b/s, with no error messages seen anywhere....
I dont have any messages about the connection dropping, nothing out of
the ordinary in dmesg, but when i ping www.google.fr, for example, I get
around 20% 50% packet loss, depending on tests...
I didnt have this problem before with Feisty, and my ISP is functioning
OK. When I plug in the ethernet cable to the router/modem, wifi is
dropped and eth0 activated (nice :) ) and i have no loss with pings and
I have a constant 64kb download, which rules out an upstream ISP
problem.
lspci -vv of my card:
05:09.0 Network controller: Intersil Corporation ISL3890 [Prism GT/Prism
Duette]/ISL3886 [Prism Javelin/Prism Xbow] (rev 01)
Subsystem: Z-Com, Inc. XG-900 and clones Wireless Adapter
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
Latency: 64 (2500ns min, 7000ns max), Cache Line Size: 128 bytes
Interrupt: pin A routed to IRQ 18
Region 0: Memory at f8310000 (32-bit, non-prefetchable) [size=8K]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
currently re dist-upgrading since my switch to gutsy last week, so If
repaired afer, ill let you know.
Otherwise, open to sugestions or how to get you guys more info.
David
--
Prism Wifi connection losing packets and being slow
https://bugs.launchpad.net/bugs/150859
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Bugs, which is the bug contact for Ubuntu.
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