Public bug reported:
Binary package hint: gdm
gdm 2.20 had options in /etc/gdm/gdm.conf (in particular
FailsafeXServer) for specifying an action to take when X is failing to
start up. We attached a failsafe session (aka bulletproof-x) to be
invoked by gdm in these situations, which users could use to diagnose
and work around issues.
These options were implemented in the 'deal_with_x_crashes()' function
in gdm.c. Near as I can tell, this gdm feature was not included in the
new gdm rewrite, so we are seeing a regression here. The problem is
that whereas in the past the user would be dumped into a debugging
session, now gdm is simply trying multiple times, failing each time, and
then exiting (which then leads to the quite severe bug 441638).
Anyway, the end result is that we no longer have a debugging failsafe
mode available for users, they're just left with a non-functioning
system. Please either restore the missing functionality, or provide an
analogous mechanism to which we can attach a debugging session mode.
** Affects: gdm (Ubuntu)
Importance: Undecided
Status: New
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New gdm does not have the FailsafeXServer config option
https://bugs.launchpad.net/bugs/474806
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