Date: Fri, 18 Feb 2022 21:28:02 +0000 From: bugzilla-noreply@freebsd.org To: ports-bugs@FreeBSD.org Subject: [Bug 262043] update of drm-*kmod breaks AMD GPU support Message-ID: <bug-262043-7788@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D262043 Bug ID: 262043 Summary: update of drm-*kmod breaks AMD GPU support Product: Ports & Packages Version: Latest Hardware: Any OS: Any Status: New Severity: Affects Some People Priority: --- Component: Individual Port(s) Assignee: ports-bugs@FreeBSD.org Reporter: se@FreeBSD.org The update of drm-devel-kmod to 5.7.19.g20220126 (commit 0c38674b389ad) bro= ke support for my AMD GPU of type Radeon R7 250E (but probably many other AMD cards, too). The probe and attach proceeds to the point where the final parameter set is chosen and the frame buffer made available. [drm] AMDGPU Display Connectors [drm] Connector 0: [drm] DP-1 [drm] HPD4 [drm] DDC: 0x1950 0x1950 0x1951 0x1951 0x1952 0x1952 0x1953 0x1953 [drm] Encoders: [drm] DFP1: INTERNAL_UNIPHY2 [drm] Connector 1: [drm] HDMI-A-1 [drm] HPD1 [drm] DDC: 0x195c 0x195c 0x195d 0x195d 0x195e 0x195e 0x195f 0x195f [drm] Encoders: [drm] DFP2: INTERNAL_UNIPHY2 [drm] Connector 2: [drm] DVI-I-1 [drm] HPD2 [drm] DDC: 0x1958 0x1958 0x1959 0x1959 0x195a 0x195a 0x195b 0x195b [drm] Encoders: [drm] DFP3: INTERNAL_UNIPHY [drm] CRT1: INTERNAL_KLDSCP_DAC1 drmn0: [drm] Cannot find any crtc or sizes drmn0: [drm] Cannot find any crtc or sizes drmn0: [drm] Cannot find any crtc or sizes [drm] Initialized amdgpu 3.37.0 20150101 for drmn0 on minor 0 The previous, working driver version showed the following final attach mess= age lines: [drm] Encoders: [drm] DFP3: INTERNAL_UNIPHY [drm] CRT1: INTERNAL_KLDSCP_DAC1 [drm] fb mappable at 0xE0503000 [drm] vram apper at 0xE0000000 [drm] size 33177600 [drm] fb depth is 24 [drm] pitch is 15360 [drm] Initialized amdgpu 3.36.0 20150101 for drmn0 on minor 0 It seems that the I2C code changed significantly between the working and br= oken version, but I do not know where to start debugging/diagnosing the issue. --=20 You are receiving this mail because: You are the assignee for the bug.=
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