Fedora 18 - Disastrous experience

[Timothy Murphy]

I upgraded one laptop - a Thinkpad T60 - to F-18,
and have had 4 problems, each of which I would consider fatal.

I have another Thinkpad - a T61 - still running F-17,
which I use for comparison.

1. Sleep problem.
When re-awaking from Sleep, whether that was started 
from the f-menu or by closing the lid, 
about 60% of the time the screen starts flashing on and off
each couple of seconds, and the machine has to be stopped
by pressing the power button, and re-started.

2. KMail
Possibly due to the above problem, the akonadi database became corrupted,
preventing KMail from starting.
After failing to mend the database, I deleted ~/.local/share/akonadi/* .
This allows KMail to re-start, but after several hours
the database has only been 1/4 filled, and seems to have stopped filling.
I can read my email from an IMAP server on the T61, so no mail was lost.

3. NM
This is behaving in an incomprehensible way,
with WiFi getting slower and slower after re-starting NM.
Here is an example pinging my home server on each laptop.
Under F-18:
--------------------------------
[tim at blanche ~]$ sudo systemctl restart NetworkManager.service
[tim at blanche ~]$ ping grover
PING grover (192.168.2.5) 56(84) bytes of data.
64 bytes from grover (192.168.2.5): icmp_seq=1 ttl=64 time=1.26 ms
64 bytes from grover (192.168.2.5): icmp_seq=2 ttl=64 time=1.29 ms
64 bytes from grover (192.168.2.5): icmp_seq=3 ttl=64 time=10.9 ms

--- grover ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 1.267/4.501/10.944/4.555 ms
[tim at blanche ~]$ ping grover
PING grover (192.168.2.5) 56(84) bytes of data.
64 bytes from grover (192.168.2.5): icmp_seq=1 ttl=64 time=218 ms
64 bytes from grover (192.168.2.5): icmp_seq=2 ttl=64 time=141 ms
64 bytes from grover (192.168.2.5): icmp_seq=3 ttl=64 time=263 ms

--- grover ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
rtt min/avg/max/mdev = 141.613/207.600/263.131/50.157 ms
[tim at blanche ~]$ ping grover
PING grover (192.168.2.5) 56(84) bytes of data.
64 bytes from grover (192.168.2.5): icmp_seq=1 ttl=64 time=632 ms
64 bytes from grover (192.168.2.5): icmp_seq=2 ttl=64 time=785 ms
64 bytes from grover (192.168.2.5): icmp_seq=3 ttl=64 time=1262 ms
--------------------------------
Under F-17:
--------------------------------
[tim at rose ~]$ ping grover
PING grover (192.168.2.5) 56(84) bytes of data.
64 bytes from grover (192.168.2.5): icmp_req=1 ttl=64 time=1.48 ms
64 bytes from grover (192.168.2.5): icmp_req=2 ttl=64 time=1.67 ms
64 bytes from grover (192.168.2.5): icmp_req=3 ttl=64 time=1.86 ms

--- grover ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 1.486/1.676/1.869/0.159 ms
[tim at rose ~]$ ping grover
PING grover (192.168.2.5) 56(84) bytes of data.
64 bytes from grover (192.168.2.5): icmp_req=1 ttl=64 time=1.55 ms
64 bytes from grover (192.168.2.5): icmp_req=2 ttl=64 time=1.46 ms
64 bytes from grover (192.168.2.5): icmp_req=3 ttl=64 time=1.37 ms

--- grover ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2007ms
rtt min/avg/max/mdev = 1.370/1.464/1.555/0.081 ms
[tim at rose ~]$ ping grover
PING grover (192.168.2.5) 56(84) bytes of data.
64 bytes from grover (192.168.2.5): icmp_req=1 ttl=64 time=3.54 ms
64 bytes from grover (192.168.2.5): icmp_req=2 ttl=64 time=1.26 ms
64 bytes from grover (192.168.2.5): icmp_req=3 ttl=64 time=1.27 ms

--- grover ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
rtt min/avg/max/mdev = 1.269/2.030/3.546/1.072 ms
[tim at rose ~]$ ping grover
PING grover (192.168.2.5) 56(84) bytes of data.
64 bytes from grover (192.168.2.5): icmp_req=1 ttl=64 time=1.27 ms
64 bytes from grover (192.168.2.5): icmp_req=2 ttl=64 time=1.17 ms
64 bytes from grover (192.168.2.5): icmp_req=3 ttl=64 time=1.23 ms
--------------------------------

The laptops were in exactly the same location.
In each case the other laptop was switched off.

4. OpenVPN has ceased to work, although correct certs are in place.
I haven't examined the reason for this, as the other problems
are already fatal.

Incidentally, I installed F-18 from the KDE Live ISO,
transferred to a USB stick, and keeping the /home partition from F-17.