On 16/05/18 19:28, w...@hllmnn.de wrote:
I just did a fresh install of testing with XFCE. After entering the login
credentials the screen was black for 30-60 seconds before the desktop
environment showed up. Assuming a bug in XFCE, I performed another fresh install
with MATE, but a similar effect occured: after login the background image is
shown for 30-60 seconds before the desktop is fully loaded.
What happens if you wiggle your mouse or provide keyboard activity while
waiting? For example, if you wiggle your mouse vigorously for two
seconds or press the Alt key 20 times? Does the wait end sooner?
In Linux 4.16, the getrandom system call (without the GRND_NONBLOCK
flag) blocks until sufficient entropy is available in the pool. This is
the documented behaviour, and Linux 4.16 now enforces it to fix
CVE-2018-1108. This has caught out several services that try to use
getrandom (without the GRND_NONBLOCK flag) at early boot, including
plymouth (via fontconfig) and gdm3. What you see might have the same
cause. For details of my investigation, see:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=897572
Wiggling your mouse or providing keyboard activity adds entropy to the
pool. If this reduces the waiting time, you might be affected by the
same bug.
Kind regards,
--
Ben Caradoc-Davies <b...@transient.nz>
Director
Transient Software Limited <https://transient.nz/>
New Zealand
