On 07/09/15 19:52, Tim Allen wrote:
On 07/09/15 15:04, TimA wrote:
Hi
Bit more info below:
On 07/09/15 10:32, TimA wrote:
Hi
I connect to local machines (called fleet and golux) using XDMCP (using
Xephyr on a laptop) but am just getting a black screen since upgrading
my laptop to Debian Jessie.
Xephyr -query fleet :1
Xephyr -query golux :1
give black screen.
I can connect to the laptop XDMCP server fine:
Xephyr -query localhost :1
and
ssh -X fleet xeyes
works fine.
Using Xnest instead of Xephyr make no difference. This was working fine
a few weeks back prior to the laptop upgrade.
No iptables rules.
Logging into fleet or golux from other machines also running Jessie is
also fine so the XDMCP server on fleet/golux is OK.
Does anyone have any advice on debugging this.
Something to do with wireless network connection:
Plugging in wired network cable, ifup eth0 and all works. Thereafter
disconnecting cable, ifdown eth0 and retrying XDMCP over wireless again
also works.
So some strange networking issue.
Problem was eth0 was manually configured in /etc/network/interfaces,
wlan0 was configured by network manager. Removing manual eth0 config
(which previously worked in Wheezy) fixed the problem.
Tim
I have seen this before, where Eth0 has a priority over wireless
connection, and you have to disable the wired connection for Wireless to
connect.
The caveat to this is that it was always on NT4 or XP boxes, never with
linux.
Peter
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