Fujitsu NH532 laptop here, running Ubuntu Mate 15.04 with 3.19.0-10-generic and Nvidia 346.47. Booting into Ubuntu yields both Intel and Nvidia card running, despite PRIME being set to INTEL.
Workaround: 1. Log in. Observe that powertop reports abnormal power usage. Both Intel and Nvidia cards are therefore on. 2. Set PRIME profile to NVIDIA. Log out, then log in. 3. Set PRIME profile to INTEL. Log out, then log in. 4. Done. Workaround works until next reboot. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nvidia-prime in Ubuntu. https://bugs.launchpad.net/bugs/1412057 Title: nvidia-prime 0.7 does not work as expected in 15.04 Status in nvidia-prime package in Ubuntu: Confirmed Bug description: Last days nvidia-prime 0.7 has been released but this version, like previous one, does not work in Vivid. I'm not sure exactly how long this problem exists (i think something like 2-3 or more weeks), but it is impossible to switch to nvidia profile. Before nvidia-settings package offered controls to switch profile Nvidia/Intel but now its gone. If we try: #prime-select nvidia we have: Info: the current alternatives in use are: ['mesa', 'mesa'] Info: selecting nvidia-346 for the nvidia profile update-alternatives: using /usr/lib/nvidia-346/ld.so.conf to provide /etc/ld.so.conf.d/x86_64-linux-gnu_GL.conf (x86_64-linux-gnu_gl_conf) in manual mode update-alternatives: using /usr/lib/nvidia-346/alt_ld.so.conf to provide /etc/ld.so.conf.d/i386-linux-gnu_GL.conf (i386-linux-gnu_gl_conf) in manual mode so it seems like switching to nvidia profile, but after relogin or reboot again mesa is marked as used. If we try: #prime-switch nvidia we have: /etc/modprobe.d is not a file /etc/modprobe.d is not a file /etc/modprobe.d is not a file /etc/modprobe.d is not a file update-alternatives: error: no alternatives for x86_64-linux-gnu_gfxcore_conf update-alternatives: using /usr/lib/x86_64-linux-gnu/mesa/ld.so.conf to provide /etc/ld.so.conf.d/x86_64-linux-gnu_GL.conf (x86_64-linux-gnu_gl_conf) in manual mode update-alternatives: using /usr/lib/i386-linux-gnu/mesa/ld.so.conf to provide /etc/ld.so.conf.d/i386-linux-gnu_GL.conf (i386-linux-gnu_gl_conf) in manual mode update-alternatives: error: no alternatives for x86_64-linux-gnu_gfxcore_conf I have tried various driver versions but none of them work now. I'm running: Kubuntu 15.04 (current/daily) Kernel: 3.18.0-9 If you need any extra info, please comment. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-prime/+bug/1412057/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

