[nvidia] corrupted display on dual monitors

[FreeSoftwareDave]

I am getting intermittent corruption on one of my monitors using XScreenSaver.

I am running a fully updated Ubuntu 11.10 (64bit) installation on a dual core AMD proc

The NVidia settings too reports that I am using driver #280.13 and XScerver Version 1.10.4, and I am using an older NVideo card:
  *-display
       description: VGA compatible controller
       product: G73 [GeForce 7600 GT]
       vendor: nVidia Corporation
       physical id: 0
       bus info: pci@0000:01:00.0
       version: a1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
       configuration: driver=nvidia latency=0
       resources: irq:18 memory:fa000000-faffffff memory:d0000000-dfffffff memory:fb000000-fbffffff ioport:ef00(size=128) memory:fc000000-fc01ffff

Corruption can occur on either one of the monitors, but I have not yet seen it in both at the same time. Once corruption occurs, XScreenSaver does not recover the monitor.

I have not been able to totally isolate the conditions, but it seems to occur more often if one of the monitors is displaying a maximized window.

What other info might be helpful?

[Tormod Volden (tormodvolden)]

This has most likely nothing to do with the xscreensaver application, but with your proprietary nvidia drivers. I am not sure where those bugs go (is there a meta package for those, or still dozens of different nvidia packages?) so I'll redirect this to the xorg meta package.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Jim Petersen (jpeter20)]

Noticing this behavior in Bodhi Linux 2.2.0, which is based on Ubuntu 12.04. Bodhi uses Enlightenment e17 window manager/desktop env. I notice that even though the screen saver doesn't leave the screen, the desktop is responsive to mouse and I can choose the menu option to restart Enlightenment, which clears everything up until the next xscreensaver activation.

This bug also seems to appear in Firefox windows, where a Downloads pop-up window will seemingly not dismiss properly after the file has completed downloading, although it has in fact dismissed. If I restart Enlightenment, Firefox is still there but the Downloads window is then dismissed.

[Jim Petersen (jpeter20)]

Interestingly, this is a dual-monitor nVidia setup, and the other monitor clears the screensaver properly and I am back to the desktop. It seems perhaps the primary monitor in nVidia settings has the issue.