Andrea Borgia wrote on 14 Sep 2019: > On two systens with fairly different hardware (a 6yr old laptop I am > using now on holiday and my new home desktop), with kernel 5.2.0 (and > possibly as low as 5.0.11) the following happens: boot, login X, > hibernate (ok), resume (also ok), unlock xfce4, stare at mouse pointer > alone on a black screen. The pointer can move, there is sound > (Telegram notifications, for example), and only keycombo that works is > the one to go back to console.
Since I upgraded to bullseye some time ago, I experience the same problem. I've spent several hours researching online and trying to debug it, but so far to no avail. I replaced light-locker by xscreensaver, but the problem persists. In my case, there is an interesting twist: I do experience this problem with my ThinkPad X220 laptop when undocked, and when docked at home (single external screen). However, when docked at work, where two external screens are attached, I have never ever experienced this problem. The X220 can handle two screens at the same time, so this problem could be somehow related to whether the built-in monitor is active or not. This must be the most annoying problem that I encounter in the 20 years that I've been using Debian! My current workaround is to work in "presentation mode" which disables and auto locking of the screen. I would be very grateful for any pointers, or at least a bug number that I can follow. As far as I can tell this is not #913062, nor #929834, nor #846278. I do not have light-locker installed. Cheers Christoph PS. Andrea, please excuse me sending this message not only to the list but also to you directly. I am not sure whether you follow this list regularly, and I'm interested to know whether you have found a solution by now.
