I faced with exactly the same problem with different hardware: Data: - Fresh install of Ubuntu 15.10 (plus some other non-desktop or gnome related packages) - All energy consumption related settings are default (I have not changed them till now). - Laptop: ACER Aspire V3-371-51 - CPU: Intel Core i5-5257U - GPU: Intel Iris grapics 6100 - Display: 1920x1080 internal laptop display, no other display ever plugged in. - 8G RAM - 120G SSD
I do not have Catalyst Center (my GPU is Intel), but The solution helped: "WORKAROUND (2): 1. Run ccsm (from package compizconfig-settings-manager) 2. In OpenGL > Sync To VBlank = OFF" This made my 100% processor usage to 70% and from workaround 1: "4. Run "ccsm" 5. In Workarounds, enable "Force full screen redraw (buffer swap) on repaint"." solved my problem totally. All these chips (and problems) are more similar than we think! -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to fglrx-installer in Ubuntu. https://bugs.launchpad.net/bugs/969860 Title: fglrx uses 100% CPU when screen turns off (spinning in glXWaitVideoSyncSGI or glXSwapBuffers) To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/969860/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
