Hi there, Am Dienstag, 28. Mai 2019, 11:28:47 CEST schrieb Andreas v. Heydwolff: > Hello, > > I'm on Stretch with backports and a regular Stretch KDE installation on > a ThinkPad X1 Yoga (Skylake CPU and graphics, self compiled latest > kernel 4.14, now .122; a stock kernel 4.9 or 4.19 doesn't help). > > Since some update a few weeks ago resume does wake up the screensaver > and mouse pointer, but the login box appears only after *half a minute* > or more whereas previously it was there immediately. This somewhat > defeats the purpose of Sleep and Resume. The battery no longer gets > detected, and powerdevil freezes and/or shows no options for closing the > lid. > [...] A few weeks before, I've upgraded several machines from Debian/Stretch (Kernel 4.9) to Debian/Buster (4.19, newer KDE/SDDM). I'm also seeing the seemingly endless lag between (apparent) Resume at which SDDM shows its wallpaper graphics and the moment when the password prompt finally shows (sometimes it would not take input, disappear, then even later re-appear and finally taking input). I'm seeing this on exactly one of my machines, which is a sturdy old netbook with a dualcore N450 Atom chip and Intel integrated graphics. I'm *not* seeing this on Intel Core Duo, i-5, i-7 and Xeon machines. The password prompt shows as quickly as it used to under Debian/Stretch. Once I'm logged in, the oldish Atom is as quick as can be expected, but it certainly *is* somewhat slower than under Stretch. That might indeed be due to some processor bug mitigations. However, it seems to me that the enormous lag at the SDDM login prompt might have a cause which is not directly (or not entirely) due to Intel microcode updates and Kernel mitigations. Just 2 cent, Christian --
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