UNSUBSCRIBE Il giorno mer 26 feb 2020 alle ore 17:18 inkbottle <inkbottle...@gmail.com> ha scritto:
> *Intro:* > > My screen randomly wakes up from standby / energy saving mode and it's a > very > very very annoying issue which cause I unfortunately have not the faintest > clue about. > > It is not something I can reproduce, so the best I can do is a sort of > "case > report". > > *What happened:* > > The screen woke up from energy saving mode all by itself. > I just had done an upgrade, so the system was up to date. > I had rebooted twice. > > The screen initially went in energy saving mode from sddm: there were no > active session. I think there even have been no session between last > reboot > and screen-standby. > > Nobody was near the computer, and there was no earthquake at that time, > nor > any source of vibrations (note that I did try with mouses unplugged and > that > it made no difference). > > I took note of the time on my phone. > When later I looked into "journalctl -a", there was no recorded events > around > the time of the incident. Not a line has been written in journalctl at or > around that time. (My journalctl is on keep everything forever mode.) > > *The general setting:* > > It is an external screen connected to a lid-closed laptop through display > port > (Lenovo x230, intel integrated gpu; Monitor is 4K Dell; Connection is > Display > Port). > > I don't see anything else specific about it. I try never to do anything > fancy > with admin. > > *Why is it so annoying:* > > It is a huge distraction when the screen is turning on all by itself > randomly. > > Due to the settings described above, I cannot turn the screen off using > the > physical button. > > My primary screen is the external screen. The lid of the laptop being > closed, > the screen of the laptop is altogether deactivated. > > This is the configuration recorded in settings and it works well. > > Now if I turn the external display off with the physical button: > The above configuration is becoming unrealistic. > Consequently the system has to go to a default realistic configuration, > which > it does very well: The laptop's screen becomes the primary display... > But that changes all the settings. > > And since there is no different settings for different screens > configurations, > my settings are necessarily just ditched away. > > It would be too long to describe all the settings that are lost during > this > phase. > > With a 4K monitor on a 3rd generation i5, the gpu is already to the limit > of > what it can do. I "could" keep the lid of the laptop open, and the laptop > screen not disabled, etc. But that would take more place on my desk, put > additional strain on the system. > > As a consequence of all that, all I can do is turn the computer off. > And with the lid closed and all that, the whole sequence is something very > difficult to do. > > > > > > > >
