Public bug reported: Binary package hint: linux-restricted-modules-2.6.17-10-386
Wireless worked flawlessly on my Thinkpad T42p while it was running Dapper. With Edgy, I experience high packetloss - smokeping reports around 5% loss. Smokeping - http://oss.oetiker.ch/smokeping/ - is a tool which fires bursts of 20 pings every 300 seconds. Working interactively over ssh, the subjective experience is that the session periodically hangs for a number of seconds. In between the hangs, it feels almost normal, although repainting a remote emacs is sluggish. On the other hand, most bulk transfers are fast. Packet losses come in bursts. The worst smokeping series lost 12 of 20 pings, while most lose nothing at all. The interface is configured from /etc/network/interfaces. Encryption is WEP. Neither NetworkManager nor WPA-supplicant is used. The T42p wireless controller according to lspci -vv: 02:02.0 Ethernet controller: Atheros Communications, Inc. AR5212 802.11abg NIC (rev 01) Subsystem: IBM Unknown device 057e 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: 168 (2500ns min, 7000ns max), Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 11 Region 0: Memory at c0210000 (32-bit, non-prefetchable) [size=64K] Capabilities: [44] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 PME-Enable- DSel=0 DScale=2 PME- ifconfig ath0: ath0 Link encap:Ethernet HWaddr 00:0E:9B:98:E4:AC inet addr:158.38.61.108 Bcast:158.38.61.255 Mask:255.255.255.0 inet6 addr: 2001:700:1:1:20e:9bff:fe98:e4ac/64 Scope:Global inet6 addr: fe80::20e:9bff:fe98:e4ac/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5657510 errors:0 dropped:0 overruns:0 frame:0 TX packets:2211118 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:1530567030 (1.4 GiB) TX bytes:279781455 (266.8 MiB) iwconfig ath0: ath0 IEEE 802.11g ESSID:"UNINETT" Mode:Managed Frequency:2.462 GHz Access Point: 00:12:44:B1:B2:C0 Bit Rate:54 Mb/s Tx-Power:8 dBm Sensitivity=0/3 Retry:off RTS thr:off Fragment thr:off Encryption key:XXXX-XXXX-XX Security mode:restricted Power Management:off Link Quality=52/94 Signal level=-43 dBm Noise level=-95 dBm Rx invalid nwid:1300239 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0 ** Affects: linux-restricted-modules-2.6.17 (Ubuntu) Importance: Undecided Status: Unconfirmed -- High packetloss over Atheros wireless https://launchpad.net/bugs/75866 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
