https://bugs.freedesktop.org/show_bug.cgi?id=103953
Bug ID: 103953
Summary: [DC] Polaris10: Missing modes when enabling DC
Product: DRI
Version: unspecified
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: NEW
Severity: normal
Priority: medium
Component: DRM/AMDgpu
Assignee: [email protected]
Reporter: [email protected]
Created attachment 135751
--> https://bugs.freedesktop.org/attachment.cgi?id=135751&action=edit
dmesg with amdgpu.dc=1
I have a Dell U2713HM connected to a Radeon RX470 (MSI board, 'Radeon RX470
Gaming 4G') over dual-link DVI on Linux 4.15-rc1. When enabling DC (Kernel
commandline amdgpu.dc=1), the monitors native resolution of 2560x1440 is not
detected, when falling back to default modesetting, everything works fine.
Xorg.log and (relevant parts) of dmesg for both amdgpu.dc=1 and =0 are
attached.
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