I can confirm that this has been happening on Ubuntu 12.04 as of 12/17/2012.
This usually occurs using compiz when the monitors go into ACPI power save mode. This occurs using both the open source ATI driver, and fglrx.
I can confirm that this has been happening on Ubuntu 12.04 as of 12/17/2012.
This usually occurs using compiz when the monitors go into ACPI power save mode. This occurs using both the open source ATI driver, and fglrx.