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[full name <353449@xxxxxxxxxxxxxxxxxx>]

I am suffering from this bug too. While scrolling, Xorgs cpu usage
increases (moderatly), while the process lyx uses 100% CPU. Scrolling
too far causes the window to grey out, typing text becomes impossibly
complicated due to the lag. None of the proposed fixes above changes
anything for me ...

@lyx-devs, is there anything I can do to provide tests that can help?
This is breaking lyx usability for me, and it's not a piece of software
I'd like to sacrifice with a shrug.

Lyx 2.2.2 on Ubuntu 16.10
Xeon 3GHz Quadcore, 16 GB ram
NVIDIA Quadro FX 5600

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https://bugs.launchpad.net/bugs/353449

Title:
  lyx 1.6.x impossibly slow

Status in lyx package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: lyx

  I am using lyx 1.6.1 on Ubuntu 8.10. This program used to be my do-
  everything software, but it has become unusably slow.  That is,
  keystrokes are even delayed in displaying when I type.  The rest of
  the system is fine, and LyX didn't used to have such a problem. I'm
  not sure where to start in debugging this.

   apt-cache policy lyx
  lyx:
    Installed: 1.6.1-1~intrepid1
    Candidate: 1.6.1-1
    Version table:
       1.6.1-1 0
          500 http://ca.archive.ubuntu.com jaunty/universe Packages
   *** 1.6.1-1~intrepid1 0
          100 /var/lib/dpkg/status


  lsb_release -rd
  Description:	Ubuntu 8.10
  Release:	8.10

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