Stopping and restarting the X Server no longer results in memory leaks or hangs on PCI-Express systems This information applies to the following system configurations: ATI Proprietary Linux Driver version 3.14.6 and earlier PCI-Express Systems Initially, the X Server launches properly. Closing the X Server may result in a memory leak. Subsequent attempts to launch the X Server may result in a kernel panic or system hang. This issue has been resolved in the 8.8.25 driver.