Hi,
I thought I'd list some issues we have had since upgrading
to edgy in the
past few weeks. These clients all worked on dapper and now
have been
broken in edgy. This is fresh install of edgy (to a second
server, using
nfs/nis and next-server dhcp directive), not an upgrade.
* X fails on a matrox card with gateway monitor.
As the thin client boots, we get a blank screen where the
login screen
should appear and eventually the monitor goes into
powersave mode. This
appears to be because edgy's xorg is trying to load DRI.
I have reported
a bug here:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/850
59
and worked around the problem by adding XSERVER=vesa for
this particular
client. Does anyone know if there is an lts.conf
directive to disable
DRI -- the matrox driver is much faster than the vesa
one?
* Two Dell Optiplex machines get screwed up X.
The screens on two different optiplexs boot up into a very
strange
resolution such that a yellow screen displays (the colour
of the ldm
standard background). Fiddling with the mouse sometimes
brings its
cursor onto the screen looking very large and distorted.
We hit <ctrl><alt><F1> to get a text
terminal -- this was entirely
unreadable, violently flickering vertically. Then when we
hit
<ctrl><alt><F7> to return to X, the
resolution problem was resolved
although the text terminal never resolves.
I will try to get detailed chipsets info later.
* Some PXE clients do not respect the next-server dhcp
directive.
This is not a bug in edubuntu, but it is useful to know
about. You may
find that some PXE clients (a 3Com 3c905c in this case)
ignore the
next-server directive and go to the dhcp server for their
tftp images.
A colleague who manages a PXE network confirmed that in
his experience
the next-server directive is not reliable.
If anyone has any ideas on this stuff I'd be interested to
hear them. It's
clearly important to test all of your thin clients when you
upgrade to
edgy.
Gavin
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