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[Bug 45018] Re: Unlock screen is invisible with Nvidia twinview

To: desktop-packages@xxxxxxxxxxxxxxxxxxx
From: Luis Mondesi <lemsx1@xxxxxxxxx>
Date: Fri, 09 Sep 2011 19:03:31 -0000
Reply-to: Bug 45018 <45018@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

I started having this issue after upgrading to Oneiric (11.10). Previous
versions of Ubuntu worked fine. I'm using nvidia card with dual-head
(twinview). also, I'm using gnome3 from universe.

locking screen works. no screensaver. moving the mouse shows the mouse
pointer changing when it goes over the dialog where you would be typing
your password. typing my password logs me in.

on 11.04 I was using gnome3 from the gnome3 ppa team and everything
worked fine. then i did a do-release-upgrade -d a few days after beta1
was announced.

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https://bugs.launchpad.net/bugs/45018

Title:
  Unlock screen is invisible with Nvidia twinview

Status in GNOME Screensaver:
  Fix Released
Status in “gnome-screensaver” package in Ubuntu:
  Incomplete

Bug description:
  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.

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