| Bug ID | 92974 |
|---|---|
| Summary | Fiji Nano long boot up and long X startup with amdgpu-powerplay enabled |
| Product | DRI |
| Version | DRI git |
| Hardware | Other |
| OS | All |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | DRM/AMDgpu |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | bug0xa3d2@hushmail.com |
Created attachment 119727 [details] Output of dmesg after startup. With AMD Powerplay enabled in the kernel (cloned from http://cgit.freedesktop.org/~agd5f/linux/?h=amdgpu-powerplay)--when the computer boots there is text, as usual, before modesetting tries to switch to the native resolution of the monitor. At this point, the monitor backlight turns off for about 5 seconds and then stays on for approximately 2 minutes displaying nothing as if the computer locked up with no other boot activity occuring. The Alt+PrintScreen+E/I/U/R button combo still works at this time. If left alone the system finishes booting normally after about 2 minutes. dmesg gives these new error/messages: "Failed to send Previous Message." and ..."[drm] ib test on ring 12 succeeded" that I have not noticed when AMD Powerplay is disabled. Trying to run, "startx" at the console also simulates a system freeze for about 2 minutes or so then X starts normally. To work around the long boot and long X startup bug the kernel option, "Device Drivers/Graphics support/Direct Rendering Manager/Enable legacy fbdev support for your modesetting driver" must be set with, "n". This gives a black screen or no console after the machine boots to log in blind with. X can also be started blind and displayed normally with no startup delay. Another option is to autologin with KDM or such like to boot directly into X after legacy fbdev has been disabled in the kernel options. With AMD Powerplay disabled in the kernel there are no startup issues. Toggling or including/excluding these kernel boot, "lilo.conf" options have no effect on the bug: "amdgpu.enable_scheduler=0 ; radeon.modeset=1 ; radeon.hw_i2c=1 ; radeon.disp_priority=2 ; radeon.fastfb=1 ; radeon.backlight=1 ; radeon.pcie_gen2=-1 ; radeon.hard_reset=0" These patches (applied and not applied) have no effect on the bug: http://people.freedesktop.org/~agd5f/0001-radeonsi-fix-fiji-raster-config.patch http://people.freedesktop.org/~agd5f/0001-drm-amdgpu-update-Fiji-s-tiling-mode-table.patch Hardware: Fury Nano git: http://cgit.freedesktop.org/~agd5f/linux/commit/?h=amdgpu-powerplay&id=256ca780500bc445752763f32b246dc9ee396b62 Sidenote: hang check timer is disabled in the kernel.
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