Created attachment 7283 [details]
journalctl of trying to start Plasma5 from sddm
on this system:
Plasma5 seems to start fine with the Mageia boot screen and bubbles, but by the time it should reach the Desktop the screen turns black.
When I do alt+del+backspace I do very shortly see a fragment of the Plasma5 desktop with its very bright colors (so not of the Mga background).
/var/log/Xorg.0.log showed the same error as when I boot into a working XFCE, only:
[ 956.831] (EE) AIGLX: reverting to software rendering
In the attached log, there is:
kscreen.xcb.helper: Event Error: 147
(don't know what that means)
and many repeated:
org.kde.KScreen: kscreen: Primary output changed from KScreen::Output(Id: 635 , Name: "default" ) ( "default" ) to KScreen::Output(Id: 635 , Name: "default" ) ( "default" )
(looks like no change to me ;-) )
later, there is:
Dec 16 19:48:05 localhost org.a11y.atspi.Registry: XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
Dec 16 19:48:05 localhost org.a11y.atspi.Registry: after 41 requests (41 known processed) with 0 events remaining.
Dec 16 19:48:05 localhost kernel: kactivitymanage: segfault at 7fdb5cc31cd0 ip 00007fdb405f1e61 sp 00007ffe92acee28 error 4 in libQt5Sql.so.5.5.1[7fdb405de000+3e000]
Dec 16 19:48:05 localhost org.kde.kglobalaccel: The X11 connection broke (error 1). Did the X11 server die?
I should have filed this report ages ago, when KDE4 was dropped in cauldron, sorry for being so late.
And before filing this report, I should again have tried with a fresh user... with a different user two months ago, I did get to the Plasma5 desktop, but then it turned black on the first action (clicking anywhere).
I'll create a new user and try again within an hour (so not assign this bug, yet)
with a brand new user, Plasma5 comes up nicely, but, like two months ago, clicking on anything immediately results in a black screen.
I tried to attach xsession-errors, but somehow that didn't work, will try again later.
Created attachment 7284 [details]
xsession-errors of newly created user
Oops, I should have changed the permissions on that file, no wonder I couldn't attach it
black screen valid for Mageia-6-dev1-x86_64-DVD.iso
DATE.txt: Tue Feb 2 22:58:36 CET 2016.
scroll mouse works fine tho
now, Mageia Welcome launches as expected, alt + F2 invokes run dialogue
oops, meant to add:
intel core i5 processor
Card:Intel 810 and later
Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller
is this bug still valid under Plasma 5.7.1 ?
No answers, please reopen if still valid.