https://bugs.kde.org/show_bug.cgi?id=353975
--- Comment #48 from Iacopo Palazzi <iacopo.pala...@gmail.com> --- Hello everybody, I have to confirm this issue, even I'm a little bit confused because I have two simila KDE installations, but with only one I'm experiencing this, let me be more clear. I have two laptops: 1 - Asus N56VZ (Intel i7-3630QM, QM, 8 GB Ram, NVIDIA GT 650M 2GB), Display Port: VGA, Ubuntu 16.04 (updated from 15.10). Laptop monitor is 1920x1080. 2 - Asus N552VW-FI202T (Interl i7- 6700HQ, 16 GB RAM, NVIDIA GTX 960M 4GB), Display Port: HDMI, Ubuntu 16.04 (fresh installation). Laptop monitor is 3840x2160. In both machines, I have the same KDE version. From KInfoCenter I can see the following details: - KDE Plasma Version: 5.5.5 - QT Version: 5.5.1 - Kernel Version: 4.4.0.-31-generic (machine #1), 4.4.0-34-generic (machine #2) *** Machine #1 *** Works great, no problem with monitors at all. *** Machine #2 *** is experiencing the same issues described on this thread. I can describe 3 scenarios to reproduce the bug: 1 - If I turn on laptop #2 with the HDMI monitor powered on, sddm stucks and I cannot even see the login screen (I can still access ttys through CTRL+ALT+[1,2,3,...]). 2 - If I turn on laptop #2 with the HDMI monitor powered off, sddm appears with the login page and I can login without problems. Once I'm in, I can turn the HDMI monitor on, in this case I get it working without the background and I can't even right-click on it, even if I can still move windows and mouse over it. In this situation, If I kill and restart plasmashell, everything goes normally: second monitor appears with background and I can right-click on it. So, my current workaround is: 1 - Turn on the laptop with monitor powered off: 2 - Login in KDE environment; 3 - Power on the monitor; 4 - kill and restart plasmashell You might agree with me that it's quite frustrating :( I'd like to help you guys to find a solution on this, please tell me if you need more/different information. Thanks a lot! Iacopo -- You are receiving this mail because: You are watching all bug changes.
