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Hello Debian.org, Problem description: I have noticed that when desktop screen applications peg cpu usage, such as by having many browser tabs open or a bug in a web page's _javascript_, the windowing system X appears to freeze so that the offending application cannot be closed by the user. The mouse and keyboard are non-responsive requiring a power cycle reboot. To replicate: Open many tabs on your browser to heavy _javascript_ pages or other high screen usage sites such as youtube.com. System will become non-responsive. Mouse with lag and then freezes. Keyboard and mouse become useless. Apparent cause When entering the top command on a Debian system, it can be seen that the Xorg process is at the same priority as screen applications such as Browsers, email, xterms, etc. User screen control of X should take priority over general application processes. Currently, I perform a workaround by the following root command: # renice -12 -p $(pgrep Xorg) It seems also desirable that some screen apps have high process priority than other apps. For example, xterms to have higher priority than other applications such a chromium browser tab processes. Should the Xorg process have a higher priority over the user application screen processes on Debian installs? If yes, what package to report, etc. or ? Thank you, Glen Wetzel |