| Summary: | AddScreen/ScreenInit failed for gpu driver 0 -1 / amdgpu | ||||||
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| Product: | xorg | Reporter: | CthUlhUzzz <wraithofcthulhu> | ||||
| Component: | Driver/Radeon | Assignee: | xf86-video-ati maintainers <xorg-driver-ati> | ||||
| Status: | RESOLVED MOVED | QA Contact: | Xorg Project Team <xorg-team> | ||||
| Severity: | normal | ||||||
| Priority: | medium | ||||||
| Version: | 7.7 (2012.06) | ||||||
| Hardware: | x86-64 (AMD64) | ||||||
| OS: | Linux (All) | ||||||
| Whiteboard: | |||||||
| i915 platform: | i915 features: | ||||||
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I found the errors reason. A discrete graphics card dynamically turns off as unnecessary by driver, then the server can not initialize it. If you pass the parameter radeon/amdgpu.runpm=0 to the driver module, the server starts normally. Does X support dynamic power switching for GPUs? This state works: phoenix@phoenix-laptop:~$ sudo cat /sys/kernel/debug/vgaswitcheroo/switch 0:IGD:+:Pwr:0000:00:01.0 1:DIS: :Pwr:0000:01:00.0 This state doesn't works: phoenix@phoenix-laptop:~$ sudo cat /sys/kernel/debug/vgaswitcheroo/switch 0:IGD:+:Pwr:0000:00:01.0 1:DIS: :DynOff:0000:01:00.0 -- GitLab Migration Automatic Message -- This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity. You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/driver/xf86-video-ati/issues/181. |
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Created attachment 138173 [details] Xorg log Failed to start X Server on amdgpu driver stack OS: Ubuntu 18.04b1 Kernel: 4.15.0 I have hybrid AMD graphics in notebook. If I use "radeon" stack X works perfectly. But when I enable "amdgpu" stack X fails