[Bug 45018] Unlock screen is invisible with Nvidia twinview

[John Beisley]

Public bug reported:

Binary package hint: gnome-screensaver

This bug may equally be an issue with the Nvidia GLX drivers or Xorg.

When my laptop is configured with the following excerpt from xorg.conf,
the gnome-screensaver unlock dialog does not appear. I haven't tested if
the dialog box appears if a second monitor/projector is connected.

Further symptoms include two screensavers seeming to run at the same
time, sometimes one screensaver briefly appears over the top of the
other.

# Begin xorg.conf

Section "Device"
	Identifier	"NVIDIA Corporation NVIDIA Default Card"
	Driver		"nvidia"
	BusID		"PCI:1:0:0"
	Option		"RenderAccel"	"true"
	Option		"Coolbits"	"1"
	Option		"ConnectedMonitor"	"DFP,CRT"
	Option		"TwinView"	"1"
	Option		"Metamodes" "1280x800,1280x800; 800x600,800x600; 1280x800,NULL"
	Option		"UseEdidFreqs" "true"
	Option		"SecondMonitorHorizSync"       "30-96"
	Option		"SecondMonitorVertRefresh"     "50-160"
	Option		"TwinViewOrientation"	"Clone"
EndSection

# End xorg.conf

I have disabled the ConnectedMonitor Option and all below it as a
workaround while I do not have a second monitor connected.

** Affects: gnome-screensaver (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

-- 
Unlock screen is invisible with Nvidia twinview
https://launchpad.net/bugs/45018