I'd be very interested in knowing what your Xorg CPU utilization is like now. I'm having a similar problem on an old server running Xubuntu 9.04, where Xorg is hogging the CPU. Thanks. -- Rich
On Wed, Aug 12, 2009 at 6:41 AM, Alex M<m...@mail.ru> wrote: > Hi! > > I would like to share my experience with solving very frustrating problem with > typing in lyx 1.6.x under Ubuntu 9.04. Maybe this will help someone else or > even lead to a fix in a next lyx version. > > Recently I've upgraded to Ubuntu 9.04. After that, I could not continue my > work > in lyx 1.6.2. When typing, I experienced a very large delay (like seconds) > before all symbols would appear on screen. > > I read through all posts in lyx mailing list with similar symptoms (just 2 or > 3). The only solution there that worked was to buy a new video card. > > What I've done next: > > 1) Installed lyx 1.6.0 - the same typing delay. Installed lyx 1.5.7 - no > typing > delays. Returned back to lyx 1.6.2. > > 2) Looked at the CPU utilization. When typing, Xorg ate up to 50% CPU. > Then I resized lyx window to be smaller. CPU utilization fall down, and typing > delay decreased. I resized lyx to be 25% of the screen - typing delay almost > disappeared. > > 3) I looked which video card I have (lspci |grep Display) - Intel Corporation > 82945G/GZ Integrated Graphics Controller (rev 02) > I googled for problems with Intel graphics under Ubuntu 9, and found this link > useful: > http://ubuntuforums.org/showthread.php?t=1130582&highlight=ubuntu+slow+update > +jaunty > > 4) I tried different solutions from the link above and mostly got my X broken > or no effect. Finally this one worked for me: > > - open xorg.conf (sudo gedit /etc/X11/xorg.conf) > - go to section "Device", mine was > Section "Device" > Identifier "Configured Video Device" > EndSection > - add Option "MigrationHeuristic" "greedy" so the section looks now like this > Section "Device" > Identifier "Configured Video Device" > Option "MigrationHeuristic" "greedy" > EndSection > - restart X or reboot. > > Now I have almost no typing delays in lyx 1.6.2 (at least, typing speed is the > same as in lyx 1.5.7 on my PC). > >
