Date: Sun, 30 Jan 2022 21:23:49 +0300 From: Vladimir Kondratyev <wulf@FreeBSD.org> To: freebsd-current@freebsd.org Subject: Re: Kernel changes causing AMDGPU / DRM to fail? i2c related? Message-ID: <4611d16a-ef17-d8f3-c2c0-1b1091723646@FreeBSD.org> In-Reply-To: <a9560156-4d67-7ca2-e276-31e5585ce58e@FreeBSD.org> References: <a9560156-4d67-7ca2-e276-31e5585ce58e@FreeBSD.org>
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On 30.01.2022 00:25, Stefan Esser wrote: > After rebooting with freshly built world, kernel and the amdgpu driver > my console stopped working. It goes blank and the display goes into a > power save mode, as soon as the amdgpu driver is loaded. > > The GPU (a Radeon R7 250E) is correctly detected as before, but there > is an error message "drmn0: [drm] Cannot find any crtc or sizes". > > I'm asking here and not on the ports list, since the AMDGPU driver has > not been updated for half a year. But to be sure that there is no mismatch > between kernel and user land, I have rebuilt all X11 server and library > ports. > > There have been changes affecting the i2c driver, IIRC, and the error > message seems to point at an issue obtaining information from the LCD > display. > > The output of "grep drm /var/run/dmesg.boot" follows: > > [drm] amdgpu kernel modesetting enabled. > drmn0: <drmn> on vgapci0 > vgapci0: child drmn0 requested pci_enable_io > vgapci0: child drmn0 requested pci_enable_io > [drm] initializing kernel modesetting (VERDE 0x1002:0x683F 0x174B:0xA001 0x00). > [drm] register mmio base: 0xFCE00000 > [drm] register mmio size: 262144 > [drm] add ip block number 0 <si_common> > [drm] add ip block number 1 <gmc_v6_0> > [drm] add ip block number 2 <si_ih> > [drm] add ip block number 3 <gfx_v6_0> > [drm] add ip block number 4 <si_dma> > [drm] add ip block number 5 <si_dpm> > [drm] add ip block number 6 <dce_v6_0> > [drm] BIOS signature incorrect 0 0 > [drm] vm size is 512 GB, 2 levels, block size is 10-bit, fragment size is 9-bit > drmn0: successfully loaded firmware image 'amdgpu/verde_mc.bin' > drmn0: VRAM: 1024M 0x000000F400000000 - 0x000000F43FFFFFFF (1024M used) > drmn0: GART: 1024M 0x000000FF00000000 - 0x000000FF3FFFFFFF > [drm] Detected VRAM RAM=1024M, BAR=256M > [drm] RAM width 128bits GDDR5 > [drm] amdgpu: 1024M of VRAM memory ready > [drm] amdgpu: 3072M of GTT memory ready. > [drm] GART: num cpu pages 262144, num gpu pages 262144 > drmn0: PCIE GART of 1024M enabled (table at 0x000000F400500000). > [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). > drmn0: successfully loaded firmware image 'amdgpu/verde_pfp.bin' > drmn0: successfully loaded firmware image 'amdgpu/verde_me.bin' > drmn0: successfully loaded firmware image 'amdgpu/verde_ce.bin' > drmn0: successfully loaded firmware image 'amdgpu/verde_rlc.bin' > drmn0: successfully loaded firmware image 'amdgpu/verde_smc.bin' > [drm] Internal thermal controller without fan control > [drm] amdgpu: dpm initialized > [drm] Connector DP-1: get mode from tunables: > [drm] - kern.vt.fb.modes.DP-1 > [drm] - kern.vt.fb.default_mode > [drm] Connector HDMI-A-1: get mode from tunables: > [drm] - kern.vt.fb.modes.HDMI-A-1 > [drm] - kern.vt.fb.default_mode > [drm] Connector DVI-I-1: get mode from tunables: > [drm] - kern.vt.fb.modes.DVI-I-1 > [drm] - kern.vt.fb.default_mode > [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 > > A successful driver attach from a reboot a few days ago had ended in: > > [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 > > Regards, STefan drm-kmod commit 534aa199c10d forced it to use i2c from base. You may try to checkout previous revision (444dc58f0247) to find out if in-base i2c is guilty or not. -- WBR Vladimir Kondratyev
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