For no reason, kde will not respond to any mouse clicks, the mouse is still functional and all the windows are displayed as they were. This continue to happen and I am forced to do a hard-restart using the power button. This is a critical bug, I am totally considering abandoning kde, I am simply tried of losing my work this way. Reproducible: Sometimes
Please check the discussion and possible workarounds in bug 338999. *** This bug has been marked as a duplicate of bug 338999 ***
@ Christoph: The bug u related too was reported against KDE4, this may be not applicable here. @ Yarinder: Without mentioning what distribution/KDE-version/Qt you are using nobody can you or even consider a appropiate reply. Even better if u attach some error-logs. I do suffer a similar symptom, but it's rather Kernel related. If I have USB-2 and USB-3 devices attached, the keyboard is inresponsive at the boot-process when it arrives at GRUB (cannot selet anything there). Same comes up again after standby (STR). It helps than to switch mouse + keyboard to USB-2 and disconnect anything from USB-3 ports (or vice versa). This may as well be related to poor UEFI (Bios) programming by ASUS.
I'm using Kubuntu 15.10 ~:$ kde4-config -v Qt: 4.8.6 KDE Development Platform: 4.14.13 kde4-config: 1.0 ~:$ uname -a Linux flow 4.2.0-30-generic #35-Ubuntu SMP Fri Feb 19 13:52:26 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux I still think this is a problem but has not happened to me for a long while. However my system continues to hang when I put it to sleep sometimes. I don't know what's causing it, the video driver I am using is Nouveau. Next time I get a hang putting the system to ram sleep, what logs should I grab on the reboot?
@ Rajinder Log-files reside in /var/log/ look for something like "pm-suspend.log", it rotates. Means that u can read 3 generations of the log. dmidecode (packagename) gives you clarity about what hardware is involved. You could also check that you have an up-to-date BIOS. P.S.: Excuses for misspelling your name. This was accidentally, without any bad intentions.