You have been subscribed to a public bug:
Binary package hint: upstart
If Xorg is broken so that "upstart" tries to display a message that
Ubuntu is running in low graphics mode, then with 2.6.31-14 and
2.6.31-15 kernels it fails to determine the correct screen resolution
and the message is thus unreadable. Tried navigating the messed-up
upstart menus to get to a console but just end up with black screens.
How to repeat this bug:
(a) break X (not sure how to do this bit) - In my case experimenting with
skim/scim/ibus was enough to break hal.
"(EE) config/hal: couldn't initialise context: unknown error (null)"
(b) reboot with a 2.6.31 kernel - every time ended up with a unreadable
message.
(c) (optional) from knowledge of upstart menus; click "ok" and the select
bottom button on next (messed up) menu which should be the go to a console
option. Tab until "ok" button selected and hit return. Result completely bank
screens.
Expectation: readable fall-back in the case that X fails.
If I booted with 2.6.28-16 then can read message "Ubuntu is running in low
graphics mode" and can navigate to a console.
Possibly related warnings from /var/log/Xorg.failsafe.log following
messed up display:
(WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
(WW) VESA(0): Unable to estimate virtual size
(WW) VESA(0): No valid modes left. Trying less strict filter...
(WW) VESA(0): Unable to estimate virtual size
(WW) VESA(0): No valid modes left. Trying aggressive sync range...
(WW) VESA(0): Unable to estimate virtual size
(WW) xf86CloseConsole: KDSETMODE failed: Input/output error
(WW) xf86CloseConsole: VT_GETMODE failed: Input/output error
(WW) xf86OpenConsole: VT_GETSTATE failed: Input/output error
(WW) xf86CloseConsole: VT_ACTIVATE failed: Input/output error
(WW) xf86CloseConsole: VT_WAITACTIVE failed: Input/output error
also see ubuntu forums tread:
http://ubuntuforums.org/showthread.php?t=1344322
Ubuntu Release 9.10
upstart:
Installed: 0.6.3-10
Candidate: 0.6.3-10
Version table:
*** 0.6.3-10 0
500 http://gb.archive.ubuntu.com karmic/main Packages
100 /var/lib/dpkg/status
machine: DELL XPS notebook M1210
ProblemType: Bug
Architecture: i386
Date: Fri Dec 4 11:07:47 2009
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: openafs
Package: upstart 0.6.3-10
ProcEnviron:
LANGUAGE=en_GB:en
LANG=en_GB.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-15.50-generic
SourcePackage: upstart
Uname: Linux 2.6.31-15-generic i686
XsessionErrors: (polkit-gnome-authentication-agent-1:2534): GLib-CRITICAL **:
g_once_init_leave: assertion `initialization_value != 0' failed
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386
--
upstart failsafe incorrect screen resolution when running with 2.6.31 kernerls
https://bugs.edge.launchpad.net/bugs/492270
You received this bug notification because you are a member of Ubuntu-X, which
is subscribed to xorg in ubuntu.
_______________________________________________
Mailing list: https://launchpad.net/~ubuntu-x-swat
Post to : ubuntu-x-swat@lists.launchpad.net
Unsubscribe : https://launchpad.net/~ubuntu-x-swat
More help : https://help.launchpad.net/ListHelp
