Some news. I updated the kernel to 4.4.13. Now I don't have error messages is dmesg. Added radeon.dpm=1 radeon.modeset=1 to /etc/default/grub file (not sure if everything is needed). sudo update-grub and reboot Although I still cannot switch between the cards with DDIS, but I can run specific programs with the dedicated AMD, using DRI_PRIME=1 programpathname. That is already quite good, because I don't need the dedicated for browsing the web or so.
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1581270 Title: Hybrid Graphics: [drm:si_resume [radeon]] *ERROR* si startup failed on resume To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1581270/+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
