networking & wifi disabled/fails after close laptop & system hang. (K)Ubuntu 10.4 [jor]

[giovanni_re]

----- Original message -----
From: "giovanni_re" <john_re at fastmail.us>
To: kubuntu-users at lists.ubuntu.com
Date: Sat, 01 May 2010 19:51:24 -0700
Subject: networking & wifi disabled/fails after close laptop & system han
g. KU 10.4  [jor]

2 Problems:
1) Close laptop (Power management system?) locks up, causing
disabled
networking on reboot.
2) Unable to reenable networking.
==  Equipment & sw:
Compaq Evo N610c laptop from maybe 2003-7. 1GB, pcmcia 3com wifi
using
atmel driver. Fresh KUbuntu 10.4 install.
{This had been, & continues to, run KU 9.04 fine, from another
disk
partition}
==  Problem occurance:
Worked fine for several hours.  Then, while doing an ISO download
I
unplugged it & closed the cover. 5 minutes later I open the
cover, & the
laptop is nonresponsive, though power LED is on, & screen is
backlighted, though black. Ctrl-alt-F1, c-a-delete, c-a-backspace
does
nothing. touchpad fails to cause useful display.
(Point 1: Seems like a power management system, suspend, whatever
is
from the standard settings, has a bug. The laptop shouldn't hang
when
the cover is closed.)
Power off, then power on & boot up.  Now networking is disabled,
& I
can't find a way to enable it.
I mouse over icon of ethernet plug & socket: ¨Unmanaged¨
click on that icon: ¨Network Management disabled¨
Going to (IIRC) System settings > networking, the wifi settings
are
still there, in the "wifi" section, but there is no place to turn
on or
enable network management.
I insert the wifi card, and it doesn't show up under ifconfig,
though it
does with iwconfig.  Strange.
==
Thoughts? Suggestions?  Thanks to you, & the great GNU(Linux)
community
for the great KU10.4 sw & support. :)
===============================
=====  Here is some data for you:
{eth0 is the wifi card, which was inserted during the 10.4
install.
eth1 is the built in wired ethernet.}
{After insert the wifi card, it sees it (eth0) but fails to start
the
networking properly}
:~$ tail -f /var/log/syslog
May  1 16:59:35 a polkitd[1394]: started daemon version 0.96
using
authority implementation `local' version `0.96'
May  1 17:00:32 a kernel: [  169.092178] pcmcia_socket
pcmcia_socket0:
pccard: PCMCIA card inserted into slot 0
May  1 17:00:32 a kernel: [  169.092197] pcmcia_socket
pcmcia_socket0:
cs: memory probe 0xa0000000-0xa0ffffff: clean.
May  1 17:00:32 a kernel: [  169.099640] pcmcia 0.0: pcmcia:
registering
new device pcmcia0.0
May  1 17:00:33 a kernel: [  169.714371] eth0: Atmel at76c50x.
Version
0.98. MAC 00:04:75:c4:57:e1
May  1 17:00:33 a NetworkManager:    SCPlugin-Ifupdown: devices
added
(path:
/sys/devices/pci0000:00/0000:00:1e.0/0000:02:06.0/0.0/net/eth0,
iface: eth0)
May  1 17:00:33 a NetworkManager:    SCPlugin-Ifupdown: device
added
(path:
/sys/devices/pci0000:00/0000:00:1e.0/0000:02:06.0/0.0/net/eth0,
iface: eth0): no ifupdown configuration found.
May  1 17:00:33 a NetworkManager: <info>  (eth0): driver does not
support SSID scans (scan_capa 0x00).
May  1 17:00:33 a NetworkManager: <info>  (eth0): new 802.11 WiFi
device
(driver: 'atmel_cs')
May  1 17:00:33 a NetworkManager: <info>  (eth0): exported as
/org/freedesktop/NetworkManager/Devices/1
Note these apparent problematic results:
"iface: eth0): no ifupdown configuration found.
May  1 17:00:33 a NetworkManager: <info>  (eth0): driver does not
support SSID scans (scan_capa 0x00)."
===============
{Before wifi card inserted:}
ifconfig
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:72 errors:0 dropped:0 overruns:0 frame:0
          TX packets:72 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:4320 (4.3 KB)  TX bytes:4320 (4.3 KB)
root@:~# iwconfig
lo        no wireless extensions.
eth1      no wireless extensions.
{After wifi card inserted: ifconfig doesn't see it, iwconfig
does: eth0}
{Fails to see eth0}
root@:~# ifconfig
lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1

          RX packets:80 errors:0 dropped:0 overruns:0 frame:0

          TX packets:80 errors:0 dropped:0 overruns:0 carrier:0

          collisions:0 txqueuelen:0

          RX bytes:4800 (4.8 KB)  TX bytes:4800 (4.8 KB)



root@:~# iwconfig

lo        no wireless extensions.



eth1      no wireless extensions.



eth0      IEEE 802.11-DS  ESSID:""

          Mode:Managed  Channel:4  Access Point:
FF:00:00:00:00:00
          Bit Rate:11 Mb/s

          Retry short limit:7   RTS thr:off   Fragment thr:off

          Encryption key:off

          Power Management:off

          Link Quality:0  Signal level:0  Noise level:0

          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid
frag:0
          Tx excessive retries:0  Invalid misc:0   Missed
beacon:0


{&, though before it did scan, now it says it cant}

root@:~# iwlist eth0 scan
eth0      Interface doesn't support scanning : Resource
temporarily
unavailable
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