Ctrl-Alt-F2 does not work but I can ssh into the box. Once there everything looks fine. Log files only really show DMAR: INTR-REMAP problem. I have restarted gnome but it comes back with a screen flicker and very slow mouse and keyboard movements. Only way to recover fully is a reboot.
While playing a youtube video today I had a freeze and I could use the mouse click to start and stop the video but I could do nothing else. I have tried Ctrl-Alt-SysRq with no luck. Have not tried the other combinations you linked to. Perhaps the Firepro is not supported with these kernels I've used. I did see a post with it working with kernel 4.3 on Debian unstable. Thanks for the suggestions. John > If the keyboard is working at all, you should be able to use the magic > sysreq keys. > > http://www.howtogeek.com/119127/use-the-magic-sysrq-key-on-linux-to-fix-frozen-x-servers-cleanly-reboot-and-run-other-low-level-commands/ > > It's possible that there is a complete kernel panic, and nothing is > running, so the keyboard and mouse are unavailable. The fact that the > mouse pointer moves and music continues to play makes this unlikely. > That couldn't happen unless instructions were being processed by the > CPU. What if you unplug and plug in the mouse? Does it start working > properly? > > Did you try Ctrl-Alt-F2 to reach a virtual console? When in X, the > virtual consoles are only reachable via the Ctrl-Alt-F2 version. Once > you are in a virtual console, you can look at the X logs, examine > journalctl -r or check processes that are suspended. You can even kill > the X server, and restart it if you have to. > > If you get no joy, try a different kernel, or downgrade X to an earlier > version. It is likely that either the video driver or the X version is > having a race condition, and locking up. I use the radeon driver on an > older amd video card and have no issues at all, so it might be that > your card is newer and not as well supported. > > If all else fails, search at https://bugzilla.redhat.com/ for bugs that > have your problem (say 'X freeze' or 'radeon'), and add your comments, > and check for workarounds, or open a new bug describing your problem. > Open it against X, even though it could be other things. > -- > users mailing list > users@lists.fedoraproject.org > To unsubscribe or change subscription options: > https://admin.fedoraproject.org/mailman/listinfo/users > Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct > Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines > Have a question? Ask away: http://ask.fedoraproject.org >
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