Bug 923586

Summary: Screen unlock (shield) fails on fresh F19 install
Product: [Fedora] Fedora Reporter: Adam Williamson <awilliam>
Component: gnome-shellAssignee: Owen Taylor <otaylor>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: unspecified    
Version: 19CC: admiller, fmuellner, otaylor, samkraju, sangu.fedora, walters
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Target Release: ---   
Hardware: All   
OS: All   
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Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2013-03-20 09:07:28 UTC Type: Bug
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Adam Williamson 2013-03-20 06:38:28 UTC 
My F19 live images have progressed to the point where I can build one that boots and installs - excellent. However, if I leave an installed F19 VM idle at a logged-in desktop until the screen blanks, then try to wake it up again, the screen stays blank. Switching to a VT works, and if I run 'DISPLAY=:0 gnome-shell --replace' , gnome-shell restarts and I can see the desktop again.

It looks like some kind of error in the screenShield.js code, according to a bunch of error messages I found in journalctl. The timestamps on these match up nicely with the attempt to unlock the screen; there are no similar messages before that time.

Mar 20 02:33:58 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!   Exception was: Error: Expected type gunichar for Argument 'c' but got type 'number' (nil)
Mar 20 02:33:58 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     message = '"Expected type gunichar for Argument 'c' but got type 'number' (nil)"'
Mar 20 02:33:58 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     fileName = '"/usr/share/gnome-shell/js/ui/screenShield.js"'
Mar 20 02:33:58 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     lineNumber = '606'
Mar 20 02:33:58 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     stack = '"([object GObject_Object],[object GObject_Union])@/usr/share/gnome-shell/js/ui/screenShield.js:606
Mar 20 02:33:59 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!   Exception was: Error: Expected type gunichar for Argument 'c' but got type 'number' (nil)
Mar 20 02:33:59 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     message = '"Expected type gunichar for Argument 'c' but got type 'number' (nil)"'
Mar 20 02:33:59 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     fileName = '"/usr/share/gnome-shell/js/ui/screenShield.js"'
Mar 20 02:33:59 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     lineNumber = '606'
Mar 20 02:33:59 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     stack = '"([object GObject_Object],[object GObject_Union])@/usr/share/gnome-shell/js/ui/screenShield.js:606
Mar 20 02:34:02 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!   Exception was: Error: Expected type gunichar for Argument 'c' but got type 'number' (nil)
Mar 20 02:34:02 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     message = '"Expected type gunichar for Argument 'c' but got type 'number' (nil)"'
Mar 20 02:34:02 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     fileName = '"/usr/share/gnome-shell/js/ui/screenShield.js"'
Mar 20 02:34:02 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     lineNumber = '606'
Mar 20 02:34:02 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     stack = '"([object GObject_Object],[object GObject_Union])@/usr/share/gnome-shell/js/ui/screenShield.js:606
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!   Exception was: Error: Expected type gunichar for Argument 'c' but got type 'number' (nil)
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     message = '"Expected type gunichar for Argument 'c' but got type 'number' (nil)"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     fileName = '"/usr/share/gnome-shell/js/ui/screenShield.js"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     lineNumber = '606'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     stack = '"([object GObject_Object],[object GObject_Union])@/usr/share/gnome-shell/js/ui/screenShield.js:606
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!   Exception was: Error: Expected type gunichar for Argument 'c' but got type 'number' (nil)
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     message = '"Expected type gunichar for Argument 'c' but got type 'number' (nil)"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     fileName = '"/usr/share/gnome-shell/js/ui/screenShield.js"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     lineNumber = '606'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     stack = '"([object GObject_Object],[object GObject_Union])@/usr/share/gnome-shell/js/ui/screenShield.js:606
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!   Exception was: Error: Expected type gunichar for Argument 'c' but got type 'number' (nil)
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     message = '"Expected type gunichar for Argument 'c' but got type 'number' (nil)"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     fileName = '"/usr/share/gnome-shell/js/ui/screenShield.js"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     lineNumber = '606'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     stack = '"([object GObject_Object],[object GObject_Union])@/usr/share/gnome-shell/js/ui/screenShield.js:606
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!   Exception was: Error: Expected type gunichar for Argument 'c' but got type 'number' (nil)
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     message = '"Expected type gunichar for Argument 'c' but got type 'number' (nil)"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     fileName = '"/usr/share/gnome-shell/js/ui/screenShield.js"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     lineNumber = '606'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     stack = '"([object GObject_Object],[object GObject_Union])@/usr/share/gnome-shell/js/ui/screenShield.js:606
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!   Exception was: Error: Expected type gunichar for Argument 'c' but got type 'number' (nil)
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     message = '"Expected type gunichar for Argument 'c' but got type 'number' (nil)"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     fileName = '"/usr/share/gnome-shell/js/ui/screenShield.js"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     lineNumber = '606'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     stack = '"([object GObject_Object],[object GObject_Union])@/usr/share/gnome-shell/js/ui/screenShield.js:606
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!   Exception was: Error: Expected type gunichar for Argument 'c' but got type 'number' (nil)
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     message = '"Expected type gunichar for Argument 'c' but got type 'number' (nil)"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     fileName = '"/usr/share/gnome-shell/js/ui/screenShield.js"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     lineNumber = '606'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     stack = '"([object GObject_Object],[object GObject_Union])@/usr/share/gnome-shell/js/ui/screenShield.js:606
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!   Exception was: Error: Expected type gunichar for Argument 'c' but got type 'number' (nil)
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     message = '"Expected type gunichar for Argument 'c' but got type 'number' (nil)"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     fileName = '"/usr/share/gnome-shell/js/ui/screenShield.js"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     lineNumber = '606'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     stack = '"([object GObject_Object],[object GObject_Union])@/usr/share/gnome-shell/js/ui/screenShield.js:606
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!   Exception was: Error: Expected type gunichar for Argument 'c' but got type 'number' (nil)
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     message = '"Expected type gunichar for Argument 'c' but got type 'number' (nil)"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     fileName = '"/usr/share/gnome-shell/js/ui/screenShield.js"'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     lineNumber = '606'
Mar 20 02:34:03 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     stack = '"([object GObject_Object],[object GObject_Union])@/usr/share/gnome-shell/js/ui/screenShield.js:606
Mar 20 02:34:04 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!   Exception was: Error: Expected type gunichar for Argument 'c' but got type 'number' (nil)
Mar 20 02:34:04 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     message = '"Expected type gunichar for Argument 'c' but got type 'number' (nil)"'
Mar 20 02:34:04 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     fileName = '"/usr/share/gnome-shell/js/ui/screenShield.js"'
Mar 20 02:34:04 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     lineNumber = '606'
Mar 20 02:34:04 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     stack = '"([object GObject_Object],[object GObject_Union])@/usr/share/gnome-shell/js/ui/screenShield.js:606
Mar 20 02:34:05 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!   Exception was: Error: Expected type gunichar for Argument 'c' but got type 'number' (nil)
Mar 20 02:34:05 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     message = '"Expected type gunichar for Argument 'c' but got type 'number' (nil)"'
Mar 20 02:34:05 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     fileName = '"/usr/share/gnome-shell/js/ui/screenShield.js"'
Mar 20 02:34:05 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     lineNumber = '611'
Mar 20 02:34:05 localhost.localdomain /etc/gdm/Xsession[1221]: JS ERROR: !!!     stack = '"([object GObject_Object],[object GObject_Union])@/usr/share/gnome-shell/js/ui/screenShield.js:611
Comment 1 Adam Williamson 2013-03-20 06:44:03 UTC 
This is with gnome-shell-3.7.92-1.fc19.x86_64 .

On my 'dirty' desktop system I haven't noticed this, but then I just remembered, I don't have screen locking enabled. If I manually lock the screen, it goes black, moving the mouse wakes it up. I can't hit 'esc' to raise the shield (which I should be able to), but dragging it upward manually works, then I can enter the password and unlock okay.

If I manually lock the VM, I don't see the bug either, but I do see the 'esc doesn't work' bug. So it seems like the timeout is somehow significant to this bug...
Comment 2 Adam Williamson 2013-03-20 07:00:08 UTC 
If I enable locking on my desktop, I can reproduce the bug there too, with the same JS ERRORs.
Comment 3 Adam Williamson 2013-03-20 08:46:38 UTC 
I'm uploading my latest live image to assist in debugging this. It will be complete at:

http://fedorapeople.org/groups/qa/20130320-desktop-x86_64.iso

in approx. 50 minutes (it's currently there, but still uploading, so incomplete). sha256sum is:

38ffc3ca990f4d111f2e2e5c4a185358ef665f2bfaa9513b849102658a5e79d1
Comment 4 sangu 2013-03-20 08:59:27 UTC 
Duplicated bug 923386 and bug 923364 ?
Comment 5 Adam Williamson 2013-03-20 09:07:28 UTC 

*** This bug has been marked as a duplicate of bug 923364 ***