Black screen after a huge update to Plasma 5.10 and libQt 5.9

[rlk]

In my case, sddm-greeter still crashes.
I need to use another desktop manager, for example, kdm or lightdm; then I can launch Plasma 5 Workspace, bypassing sddm-greeter.
In rare circumstances, I can see some graphic artifact in the fonts.

So, this bug is not completely fixed yet.

This isn't a fix; it's a workaround. And an ugly one too.

sddm hasn't been crashing for me (it didn't before I turned off subpixel hinting, either; it was the plasma stuff that did), so perhaps there's another, unrelated bug.

-Robert Krawitz

[sdfs]

> So, this bug is not completely fixed yet.

Is there a bug report filed on this? With attached ".xsession-errors" ?

[MenakVishap]

It seems that after last update everything works again (without switching off subpixel rendering). Let's knock on wood!

[Ralph82]

It seems that after last update everything works again (without switching off subpixel rendering).

I can confirm that after last big update (over 370 packages), openSUSE Leap 42.2 now is working properly, also with subpixel hinting enabled, and sddm-greeter is not crashing anymore!

Let's knock on wood!

I agree ...

[rlk]

I can confirm that after last big update (over 370 packages), openSUSE Leap 42.2 now is working properly, also with subpixel hinting enabled, and sddm-greeter is not crashing anymore!


I agree ...

Didn't do it for me, unfortunately. plasmashell still crashed.

[rlk]

Didn't do it for me, unfortunately. plasmashell still crashed.

There's something else squirrely going on with fonts. If I enable subpixel hinting, then plasmashell crashes (I'm downloading the debuginfo for plasmashell now). However, fonts in other apps -- including non-QT apps -- don't look right either.

I'm using Liberation Sans as my default font. More digging..

[Ralph82]

Didn't do it for me, unfortunately. plasmashell still crashed.

Are you using an alternative repo for font rendering?
In that case, you need to go back to the original libfreetype6/fontconfig versions (from OSS/Update repos).

Moreover, as written before by wolfi323, you should do a full switch to the official Plasma5 repos for your openSUSE version.


I have updated from a virtual terminal, as root:

init 3
zypper refresh
zypper list-updates
zypper update
reboot

After these huge updates, it is very important to restart your computer.

[rlk]

Are you using an alternative repo for font rendering?
In that case, you need to go back to the original libfreetype6/fontconfig versions (from OSS/Update repos).

Moreover, as written before by wolfi323, you should do a full switch to the official Plasma5 repos for your openSUSE version.


I have updated from a virtual terminal, as root:

init 3
zypper refresh
zypper list-updates
zypper update
reboot

After these huge updates, it is very important to restart your computer.

I'm using the stock fontconfig and freetype bits from the openSUSE repo, and all of the KDE5 repos (that I know of, at any rate: Frameworks5, QT5, Extra, and Applications).

I'm using the Xorg repo too; I tried switching back to the stock openSUSE bits (based on the 1.16 server) by disabling that repo and zypper dup'ing it, but that didn't change anything.

Rebooting also had no effect.

Changing fonts -- the _act_ of changing fonts, and changing back -- in my browser did help my browser, but nothing else.

But that gives me an idea...

[gogalthorp]

You must be absolutely sure you are not mix repo's ie pulling some from an advanced version and some from standard. That is sure to break things. Don't just randomly add repos thing may not be compatible. When using the advanced versions you must do a full vendor change to those repos so all required packages come only from the advanced. Mixing advanced and standard will not work.
If you need assistance in doing the vendor change show us your repo list

zypper lr -d

[rlk]

You must be absolutely sure you are not mix repo's ie pulling some from an advanced version and some from standard. That is sure to break things. Don't just randomly add repos thing may not be compatible. When using the advanced versions you must do a full vendor change to those repos so all required packages come only from the advanced. Mixing advanced and standard will not work.
If you need assistance in doing the vendor change show us your repo list

zypper lr -d

The repos I'm using (in addition to openSUSE Leap 42.2 and its updates) are:

KDE:/Applications/KDE_Frameworks5_openSUSE_Leap_42.2
KDE:/Qt5
KDE:/Frameworks5
KDE:/Extra
devel:/languages:/python3
X11:/Enlightenment:/Factory/
devel:/tools
devel:/tools:/scm
devel:/languages:/R:/released
LibreOffice:/Factory
X11:/XOrg
editors
graphics
multimedia:/photo
multimedia:/libs
multimedia:/color_management
GNOME:/Apps
mozilla (using Firefox LTS because I want to be able to use addons of my choice, not just what Mozilla says is good for me)
Emulators:/Wine
Packman

(the zypper lr -u output won't be helpful because I mirror the repos I care about -- I have DSL and updating from remote repos would be...impractical).