ubuntustudio-bugs team mailing list archive

[Evan Langlois <uudruid74@xxxxxxxxx>]

I just changed from the proprietary ATI driver to Radeon (as a result of
switching to kernel 3.16) and this bug now affects me.  I'm pretty sure
its the driver.  I'm also using compiz.   Not sure why LyX is so slow
when other apps aren't, but a multi-Ghz machine should be able to keep
up with how fast I can type.

Isn't it funny how hardware is at a blazing speed, but the "useable"
speed is roughly the same as a few decades ago.  Infact, I think my
Atari ST could open windows faster than my Ubuntu box.

Possible Workaround.  If using Compiz, load ccsm and see if the Copy To
Texture plugin is on.  If so, see if turning it off helps.  It seems to
work for me.  I'm wondering if LyX isn't reporting what part of the
screen was damaged properly or something like that and its causing
compiz to copy the whole window to the texture instead of just the
damaged area.  This would explain why a smaller window helps.  I'm
betting the bug only recently hit me either because the fglrx driver has
a hardware speed-up for copy to texture or because I didn't have the
Copy turned on before (I had to reconfigure a few things when I
switched).

Do we have any authors that can look at the code or whatever library is
being used?

-- 
You received this bug notification because you are a member of Ubuntu
Studio Bugs, which is subscribed to lyx in Ubuntu.
Matching subscriptions: Ubuntu Studio Bugs
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

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/lyx/+bug/353449/+subscriptions