[Bug 1283820] Re: content of windows (and desktop) appear black when using kwin, but not with kwin_gles - intel graphics

[Alan]

Same issue here, desktop with Intel graphics.  Completely clean install
including blank, formatted /home, default installation boots to black
desktop with taskbar at bottom, and windows that get opened are also
black.  Disabling desktop effects with key combination usually gets it
going, sometimes crashy.  I changed compositing type to xrender, native,
and it worked for a bit, but crashed again to black after a reboot.  Now
OpenGL 3.1 and Native, it has survived four reboots so far without
issues.  I installed the latest beta iso, issue existed.  Then full
update as of right now, same issue.  I've deleted the .kde folder a
couple times with the issue persisting.  -Sometimes- when it would work
on reboot without those settings being changed.  I will post after the
next updates or if it crashes again.  I also had an approximately 3 year
old Dell laptop I was working on here a couple weeks ago with intel
graphics, it was doing the same thing on live disc.  Same iso, checksum
is ok.  Did not check live session before install on desktop, running
Kubuntu for the two years since I assembled it without issue (Did clean
format beta install after fully updated 13.10 upgrade to 14.04 failed
during upgrade process).

Bug report at KDE says "RESOLVED DOWNSTREAM", Thomas Lübking says
"Unless your pattern breaks, this would be a downstream issue."

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https://bugs.launchpad.net/bugs/1283820

Title:
  content of windows (and desktop) appear black when using kwin, but not
  with kwin_gles - intel graphics

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