| Bug ID | 106940 |
|---|---|
| Summary | Black screen on KMS with 4.18.0-rc1 with Kaveri+Topaz, amdgpu, dc=1 |
| Product | DRI |
| Version | unspecified |
| Hardware | x86-64 (AMD64) |
| OS | Linux (All) |
| Status | NEW |
| Severity | blocker |
| Priority | medium |
| Component | DRM/AMDgpu |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | nmset@netcourrier.com |
Since kernel 4.18.0-rc1, my laptop boots in a black screen with Kaveri+Topaz GPUs, Xorg 1.20.0. The systems boots normally in the background. I can log in blindly in sddm, press CTRL+ALT+DEL when KDE has booted invisibly and shutdown the laptop with ENTER. I'm using the following options : install radeon /bin/false options amdgpu dc=1 si_support=1 cik_support=1 options radeon si_support=0 cik_support=0 Everything was just working until 4.18.0-rc1. If I boot on another partition, I can inspect Xorg.0.log of the main partition, which contains no errors. With no options at all, or if dc=0, I can get a KDE usable session, excepting suspend failing quite often. Thanks for any input to resolve this. I can give more information upon your instructions.
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