On Mon, 2015-08-17 at 11:14 -0700, Gordon Messmer wrote: > What video card are you using? Xorg driver or proprietary binary thing? lspci shows 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cedar [Radeon HD 5000/6000/7350/8350 Series] lsmod shows radeon 1734542 4 I believe this latter is the Xorg provided since I'm trying hard to just be a user since I exited the biz many years ago when I kept up with everything. The /var/log/Xorg.0.log shows, among other things... [ 82.374] (==) Assigned the driver to the xf86ConfigLayout [ 82.374] (II) LoadModule: "ati" [ 82.377] (II) Loading /usr/lib64/xorg/modules/drivers/ati_drv.so [ 82.550] (II) Module ati: vendor="X.Org Foundation" [ 82.550] compiled for 1.15.0, module version = 7.5.99 [ 82.550] Module class: X.Org Video Driver [ 82.550] ABI class: X.Org Video Driver, version 15.0 [ 82.550] (II) LoadModule: "radeon" [ 82.550] (II) Loading /usr/lib64/xorg/modules/drivers/radeon_drv.so [ 82.603] (II) Module radeon: vendor="X.Org Foundation" [ 82.603] compiled for 1.15.0, module version = 7.5.99 [ 82.603] Module class: X.Org Video Driver [ 82.603] ABI class: X.Org Video Driver, version 15.0 > > The next thing I'd do is boot the last kernel under which you saw > "normal" performance. If booting the older kernel doesn't fix the > problem, then the problem is probably the X11 server. At that point, > I'd start using "yum downgrade" to revert individual components, and > reboot until you find the change that fixes performance. > xorg-x11-server-Xorg and xorg-x11-drv-<something> are the ones I'd check > first. There was a time I had the time, interest and expertise to do all that. I actually thought it was fun and worthwhile. I've successfully transitioned to a TDU (Typical Dump User) now though and try to limit how much of my resources I devote to debugging issues caused by ... Well never mind as a list of pejorative terms related to how things are done these days seems inappropriate considering the development model used. But I do thank you for both the suggestions and taking the time to help me get this far along. Tonight I may see some benefit from the disabling of java in libreoffice, and if so that will have been a very big help. The Ksnapshot lagging and jerky region selection won't be as big an issue as it would have been six months or further back when I had to occasionally select very quickly very large regions on a "largeish" hi-res display when stuff was flying by very, very quickly. My only next project is to get the new upstart .override working right to try and start gdm and gdm-binary on tty7 instead of tty1 so that telinit will work the way "God" intended instead of they way it doesn't now. Last time I tried the .override I apparently didn't get it right as it didn't work. But I had read slap-dash and only partially so I know I should be able to get better results with a little more care. Bill