On 9/10/19 4:30 AM, Miroslav Skoric wrote: > After upgrading the old laptop from Jessie to Stretch, I noticed that > the screensaver in Mate environment does not work for me as before. For > example, when the screen goes black after some time of inactivity, for > returning back it is not enough just to touch the touchpad or press any > key. Instead, pressing any key or touching the touchpad makes the screen > just some 1% lighter than the full black (or better to say, it remains > 99% black). However, the last working GUI does not return.
I have this same issue with the default configuration of XFCE on Buster, where the problem was not present on Stretch. Is light-locker installed, and do you use lightdm? light-locker appears to be the source of this issue. Googling "light-locker black screen" returns dozens of posts across many sites complaining about the same problem. I resolved this issue by removing light-locker and installing xscreensaver instead. Note that this required removing a few metapackages, and then marking the dependent packages that I wanted to keep as manually installed to prevent apt from removing most of my desktop tools. -- Chris Howie http://www.chrishowie.com http://en.wikipedia.org/wiki/User:Crazycomputers If you correspond with me on a regular basis, please read this document: http://www.chrishowie.com/email-preferences/ PGP fingerprint: 2B7A B280 8B12 21CC 260A DF65 6FCE 505A CF83 38F5 ------------------------------------------------------------------------ IMPORTANT INFORMATION/DISCLAIMER This document should be read only by those persons to whom it is addressed. If you have received this message it was obviously addressed to you and therefore you can read it. Additionally, by sending an email to ANY of my addresses or to ANY mailing lists to which I am subscribed, whether intentionally or accidentally, you are agreeing that I am "the intended recipient," and that I may do whatever I wish with the contents of any message received from you, unless a pre-existing agreement prohibits me from so doing. This overrides any disclaimer or statement of confidentiality that may be included on your message.