I have Radeon HD 5970. As root I can do startx and use everything. All has been configured correctly and Mesa OpenCL is even available. I upgraded from xenial-proposed the next three packages too see if it would fix it:
liblightdm-gobject-1-0:amd64 1.18.3-0ubuntu1 lightdm 1.18.3-0ubuntu1 ubuntu-drivers-common 1:0.4.22 It did not. In /var/log/syslog I found: Sep 15 16:57:44 ### systemd[1]: lightdm.service: Service hold-off time over, scheduling restart. Sep 15 16:57:44 ### systemd[1]: Stopped Light Display Manager. Sep 15 16:57:44 ### systemd[1]: Starting Detect the available GPUs and deal with any system changes... Sep 15 16:57:44 ### gpu-manager[1950]: /etc/modprobe.d is not a file Sep 15 16:57:44 ### gpu-manager[1950]: message repeated 4 times: [ /etc/modprobe.d is not a file] Sep 15 16:57:44 ### gpu-manager[1950]: Error: can't open /lib/modules/4.4.0-38-generic/updates/dkms Sep 15 16:57:44 ### gpu-manager[1950]: Error: can't open /lib/modules/4.4.0-38-generic/updates/dkms Sep 15 16:57:44 ### gpu-manager[1950]: update-alternatives: error: no alternatives for x86_64-linux-gnu_gfxcore_conf Sep 15 16:57:44 ### systemd[1]: Started Detect the available GPUs and deal with any system changes. Sep 15 16:57:44 ### systemd[1]: Starting Light Display Manager... Sep 15 16:57:44 ### systemd[1]: Started Light Display Manager. Sep 15 16:57:44 ## systemd[1]: Started Session c10 of user lightdm. Sep 15 16:57:45 ### systemd[1]: lightdm.service: Main process exited, code=exited, status=1/FAILURE Sep 15 16:57:45 ### systemd[1]: lightdm.service: Unit entered failed state. Sep 15 16:57:45 ### systemd[1]: lightdm.service: Failed with result 'exit-code'. Sep 15 16:57:45 ### systemd[1]: lightdm.service: Service hold-off time over, scheduling restart. Sep 15 16:57:45 ### systemd[1]: Stopped Light Display Manager. Sep 15 16:57:45 ### systemd[1]: gpu-manager.service: Start request repeated too quickly. Sep 15 16:57:45 ### systemd[1]: Failed to start Detect the available GPUs and deal with any system changes. Sep 15 16:57:45 ### systemd[1]: lightdm.service: Start request repeated too quickly. Sep 15 16:57:45 ### systemd[1]: Failed to start Light Display Manager. Sep 15 16:57:45 ### systemd[1]: Stopped Light Display Manager. Sep 15 16:57:47 ### systemd[1]: gpu-manager.service: Start request repeated too quickly. Sep 15 16:57:47 ### systemd[1]: Failed to start Detect the available GPUs and deal with any system changes. Sep 15 16:57:47 ### systemd[1]: lightdm.service: Start request repeated too quickly. Sep 15 16:57:47 ### systemd[1]: Failed to start Light Display Manager. Sep 15 16:59:44 ### systemd[1]: Stopping User Manager for UID 104... And the output of gpu-manager is: # gpu-manager last_boot_file: /var/lib/ubuntu-drivers-common/last_gfx_boot new_boot_file: /var/lib/ubuntu-drivers-common/last_gfx_boot can't access /run/u-d-c-nvidia-was-loaded file /etc/modprobe.d is not a file can't access /run/u-d-c-fglrx-was-loaded file /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 Looking for fglrx modules in /lib/modules/4.4.0-38-generic/updates/dkms Error: can't open /lib/modules/4.4.0-38-generic/updates/dkms Looking for nvidia modules in /lib/modules/4.4.0-38-generic/updates/dkms Error: can't open /lib/modules/4.4.0-38-generic/updates/dkms Is nvidia loaded? no Was nvidia unloaded? no Is nvidia blacklisted? no Is fglrx loaded? no Was fglrx unloaded? no Is fglrx blacklisted? no Is intel loaded? no Is radeon loaded? yes Is radeon blacklisted? no Is amdgpu loaded? no Is amdgpu blacklisted? no Is nouveau loaded? no Is nouveau blacklisted? no Is fglrx kernel module available? no Is nvidia kernel module available? no Vendor/Device Id: 1002:689c BusID "PCI:3@0:0:0" Is boot vga? yes Vendor/Device Id: 1002:689c BusID "PCI:4@0:0:0" Is boot vga? no Skipping "/dev/dri/card1", driven by "radeon" Skipping "/dev/dri/card0", driven by "radeon" Found "/dev/dri/card1", driven by "radeon" Number of connected outputs for /dev/dri/card1: 0 Skipping "/dev/dri/card1", driven by "radeon" Skipping "/dev/dri/card0", driven by "radeon" Skipping "/dev/dri/card1", driven by "radeon" Skipping "/dev/dri/card0", driven by "radeon" Does it require offloading? no last cards number = 2 Has amd? yes Has intel? no Has nvidia? no How many cards? 2 Has the system changed? No main_arch_path x86_64-linux-gnu, other_arch_path i386-linux-gnu update-alternatives: error: no alternatives for x86_64-linux-gnu_gfxcore_conf Current alternative: /usr/lib/x86_64-linux-gnu/mesa/ld.so.conf Current core alternative: (null) Current egl alternative: /usr/lib/x86_64-linux-gnu/mesa-egl/ld.so.conf Is nvidia enabled? no Is nvidia egl enabled? no Is fglrx enabled? no Is mesa enabled? yes Is mesa egl enabled? yes Is pxpress enabled? no Is prime enabled? no Is prime egl enabled? no Is nvidia available? no Is nvidia egl available? no Is fglrx available? no Is fglrx-core available? no Is mesa available? yes Is mesa egl available? yes Is pxpress available? no Is prime available? no Is prime egl available? no AMD IGP detected Discrete AMD card detected Driver not enabled or not in use Nothing to do -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1369216 Title: gpu-manager: /etc/modprobe.d is not a file To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-drivers-common/+bug/1369216/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
