Sent: Friday, April 08, 2016 at 5:57 PM
From: "Bruce Dubbs" <bruce.du...@gmail.com>
To: "BLFS Support List" <blfs-support@lists.linuxfromscratch.org>
Subject: Re: [blfs-support] Plasma starts with black screen
Cliff McDiarmid wrote:
>
> Hi
>
> Right, I did a new install of Frameworks- 5.20 and Plasma-5.6.1 and the
> result is the same as before, i.e. a black screen when starting with
> mouse pointer.
>
> There is a Kmix crash again en route which one can close.
>
> I've attached a error script after using startkde from ./xinitrc from a
> new user. I'm also starting from a unused virtual terminal.
>
> Can anyone see the problem here? This is so frustrating, after a new
> build.
>
> I tried to start the session without d-bus with the same result.
>.I know this is frustrating. I think that plasma is one of the hardest
>things to build. It took me quite some time to get it to work. I still
>prefer xfce so I onlt do limited plasma testing.
>For the kmix problem, what does
>ldd /opt/kf5/bin/kmixctrl
>and
>ldd /opt/kf5/lib/libexec/drkonqi
Both these programs source libraries from /opt/kf5/lib, /usr/lib and /lib.
E.g. for drkonqi
libKF5ConfigWidgets.so.5 => /opt/kf5/lib/libKF5ConfigWidgets.so.5
(0xb774b000)
libKF5JobWidgets.so.5 => /opt/kf5/lib/libKF5JobWidgets.so.5 (0xb7721000)
libKF5KIOCore.so.5 => /opt/kf5/lib/libKF5KIOCore.so.5 (0xb7596000)
libKF5Crash.so.5 => /opt/kf5/lib/libKF5Crash.so.5 (0xb758f000)
libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb5e08000)
libm.so.6 => /lib/libm.so.6 (0xb5dba000)
libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0xb5d9d000)
libc.so.6 => /lib/libc.so.6 (0xb5be8000)
>look like. If you have qt4 built and that somehow gets involved, that can
>be a problem. What I have is
>/opt/qt4 -> qt-4.8.7
Same here
>What I did was remove the /opt/qt4 symlink before building kf5/plasma.
Same here
>Another thing to try is to build konsole and see if that works OK in
>another graphical environment. That would check several of the kf5 libraries.
Works okay under old user. Not under new user I created. E.g.
CoreApplication::arguments: Please instantiate the QApplication object first
QDBusConnection: session D-Bus connection created before QCoreApplication.
Application may misbehave.
QXcbConnection: Could not connect to display
>Another thing to check -- when you built plasma, did you keep a log?
>There may have been some errors that you might not have noticed. Use grep
>^CMake build.log to get a quick check. Errors will show up pretty
>quickly, but warnings are not an issue.
Didn't see any errors. Plenty of warnings.
I think this maybe be a display issue, maybe with kscreen?
many thanks
Cliff
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