ubuntustudio-bugs team mailing list archive

[Evan Langlois <uudruid74@xxxxxxxxx>]

This is incredibly weird.

I added the line to preferences ...

If I start with Copy To Textures off, its OK an I can turn Copy To
Preferences back on while Lyx is running and it looks like the preferences
line has fixed things.  It looks very quick like this.  I then turned Copy
To Texture back off, as it was when I started it.  Its worse than ever!  I
turn copy to texture back on, and its back to being slow (like before any
of this started).  Turning off Copy to Texture fixes it again.

If I start with Copy to Textures on,  it looks like the preferences change
has fixed it.  I turn Copy To Textures off, and now its so slow that it
misses keystrokes (see Bug #1329082 ) - a bug I haven't been able to
replicate, but can do so following these steps.  LyX now has to be closed.
You can't use it no matter what I do to CopyTo Textures.

Removed added preferences line ...

I started with Copy To Texture off.  Slow.  Turning it on now invokes Bug
#1329082!  Its like keys are getting stuck in the event buffer.  Old keys
come out that were missed when typing new ones.  Very strange.

Restart with Copy ToTexture on.  Fast.  Turning it off.  Still Fast.  Back
on.  Still fast - nope - gave it a minute ... slow again.  Turning off copy
to texture fixed it.

Apparently, the preferences change has some effect on this, Copy to
Textures has a dramatic effect - both at the time LyX is started and the
current state, and how long your using it.  Its at least 4 different
factors.

I'll keep playing with this later.  Any ideas on specific tests you'd like
me to try?  Its hurting my brain!



On Tue, Jul 22, 2014 at 2:43 AM, Jean-Marc Lasgouttes <
353449@xxxxxxxxxxxxxxxxxx> wrote:

> With my LyX developer hat on:
>
> It is known indeed that LyX has problems with the way display is handled.
> Unfortunately,
> nobody is has the right amount of knowledge and free time to fix that
> currently.
>
> I would be interested to know what happens if you add to your preferences
> file (usually in the ~/.lyx directory) the
> line:
>   \use_qimage false
>
> This will make LyX use a Pixmap (that lives in the display server)
> instead of an image which lives in main memory.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> 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
>

-- 
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