Hello, In case it can help, I can confirm the same issue on Fedora 30, with secure boot. It is a clean install (installed from the live CD, not through dnf). All packages were updated, and the system rebooted prior to the tests. Secure Boot is enabled. Restarting switcheroo-control doesn't work.
Some details / additional information: # systemctl start switcheroo-control switcheroo-cont[801]: switcheroo-control could not query vga_switcheroo status: Operation not permitted systemd[1]: switcheroo-control.service: Main process exited, code=exited, status=1/FAILURE systemd[1]: switcheroo-control.service: Failed with result 'exit-code'. systemd[1]: Failed to start Switcheroo Control Proxy service. The switcheroo file is not readable by root: # cat /sys/kernel/debug/vgaswitcheroo/switch cat: /sys/kernel/debug/vgaswitcheroo/switch: Operation not permitted Kernel lockdown is visible in dmesg: Lockdown: switcheroo-cont: debugfs is restricted; see man kernel_lockdown.7 Installed packages: switcheroo-control.x86_64 1.1-7.fc30 xorg-x11-drv-intel.x86_64 2.99.917-41.20180618.fc30 xorg-x11-drv-nouveau.x86_64 1:1.0.15-7.fc30 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1768988 Title: switcheroo-control fails to detect multi-gpu system To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/switcheroo-control/+bug/1768988/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
