Stefan Seyfried changed bug 1205452
What Removed Added
CC   seife@novell.slipkontur.de

Comment # 21 on bug 1205452 from
Things I have seen in the past:
Updates of font packages cause the X server to basically stall for quite some
time, especially (this is a guess) on older/slower CPUs and graphics adapters.

This lead to display "hangs" of about a minute without content updates, don't
remember if the mouse pointer still moved. A text console login showed, that
the xorg processes were consuming lots of CPU.
AFAIR the update process continued in the background, it was just no progress
visible on the desktop.

I have not noticed this in recent times, but I'm now using a slightly newer /
faster machine (only 10 years old core i5-3320M Thinkpad 430 ;-) instead of the
old one before (13 years old core2 duo ulv Thinkpad x200s), and maybe now it is
just the occasional "10 seconds hang" and no longer the "almost one minute
hang" and I just don't notice it anymore.

So especially if this is an "older" machine where this happens, just waiting
longer for it to finish would be my first option.
In order to debug this, I would have a ready-logged-in text console handy and
in case the GUI hangs would check if the last installed packages (should be
visible in journal or with "rpm -qa --last|head" are font packages indeed.

I'm not sure who is "to blame" for this issue, if it is the X server
dynamically reloading the changed fonts or the graphics toolkits, but that's a
secondary question, once you find out it is actually the same problem I was
seeing.


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