On Mon, Jul 2, 2018 at 5:39 PM, Daniel Andersson <engywook at gmail.com> wrote: > Sure, bisecting gets me 6e65fb862064663ad3a08f964af1e8f3f2abf688 . > > In drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c, > get_firmware_info_v3_1() works but get_firmware_info_v3_2() does not > do the right thing for my Vega. > > Could I break my GPU if I were to set some bad/wrong frequency there? vega10 should not hit that new path at all. Have you edited your vbios? Can you send us a copy? To get a copy of the vbios: Without the driver loaded: (as root) (use lspci to get the bus id) cd /sys/bus/pci/devices/<pci bus id> echo 1 > rom cat rom > /tmp/vbios.rom echo 0 > rom If the driver is loaded: (as root) cat /sys/kernel/debug/dri/0/amdgpu_vbios > /tmp/vbios.rom Alex > > lspci: > 43:00.0 VGA compatible controller: Advanced Micro Devices, Inc. > [AMD/ATI] Vega 10 XT [Radeon RX Vega 64] (rev c1) (prog-if 00 [VGA > controller]) > Subsystem: Sapphire Technology Limited Vega 10 XT [Radeon RX Vega > 64] > Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- > Stepping- SERR- FastB2B- DisINTx+ > Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- > <TAbort- <MAbort- >SERR- <PERR- INTx- > Latency: 0, Cache Line Size: 64 bytes > Interrupt: pin A routed to IRQ 85 > Region 0: Memory at d0000000 (64-bit, prefetchable) [size=256M] > Region 2: Memory at e0000000 (64-bit, prefetchable) [size=2M] > Region 4: I/O ports at f000 [size=256] > Region 5: Memory at ed400000 (32-bit, non-prefetchable) [size=512K] > Expansion ROM at ed480000 [disabled] [size=128K] > Capabilities: [48] Vendor Specific Information: Len=08 <?> > Capabilities: [50] Power Management version 3 > Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA > PME(D0-,D1+,D2+,D3hot+,D3cold+) > Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- > Capabilities: [64] Express (v2) Legacy Endpoint, MSI 00 > DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <4us, L1 > unlimited > ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset- > DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- > RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+ > MaxPayload 256 bytes, MaxReadReq 512 bytes > DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr- > TransPend- > LnkCap: Port #0, Speed 8GT/s, Width x16, ASPM L0s L1, Exit Latency > L0s <64ns, L1 <1us > ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+ > LnkCtl: ASPM L0s L1 Enabled; RCB 64 bytes Disabled- CommClk+ > ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- > LnkSta: Speed 8GT/s, Width x16, TrErr- Train- SlotClk+ DLActive- > BWMgmt- ABWMgmt- > DevCap2: Completion Timeout: Not Supported, TimeoutDis-, LTR+, > OBFF Not Supported > AtomicOpsCap: 32bit- 64bit- 128bitCAS- > DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF > Disabled > AtomicOpsCtl: ReqEn- > LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis- > Transmit Margin: Normal Operating Range, > EnterModifiedCompliance- ComplianceSOS- > Compliance De-emphasis: -6dB > LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete+, > EqualizationPhase1+ > EqualizationPhase2+, EqualizationPhase3+, > LinkEqualizationRequest- > Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+ > Address: 00000000fee00000 Data: 0000 > Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 > Len=010 <?> > Capabilities: [150 v2] Advanced Error Reporting > UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- > MalfTLP- ECRC- UnsupReq- ACSViol- > UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- > MalfTLP- ECRC- UnsupReq- ACSViol- > UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ > MalfTLP+ ECRC- UnsupReq- ACSViol- > CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ > CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ > AERCap: First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- > ECRCChkCap+ ECRCChkEn- > MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap- > HeaderLog: 00000000 00000000 00000000 00000000 > Capabilities: [200 v1] #15 > Capabilities: [270 v1] #19 > Capabilities: [2a0 v1] Access Control Services > ACSCap: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- > EgressCtrl- DirectTrans- > ACSCtl: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- > EgressCtrl- DirectTrans- > Capabilities: [2b0 v1] Address Translation Service (ATS) > ATSCap: Invalidate Queue Depth: 00 > ATSCtl: Enable+, Smallest Translation Unit: 00 > Capabilities: [2c0 v1] Page Request Interface (PRI) > PRICtl: Enable- Reset- > PRISta: RF- UPRGI- Stopped+ > Page Request Capacity: 00000020, Page Request Allocation: 00000000 > Capabilities: [2d0 v1] Process Address Space ID (PASID) > PASIDCap: Exec+ Priv+, Max PASID Width: 10 > PASIDCtl: Enable- Exec- Priv- > Capabilities: [320 v1] Latency Tolerance Reporting > Max snoop latency: 0ns > Max no snoop latency: 0ns > Kernel driver in use: amdgpu > Kernel modules: amdgpu > > // Daniel > > On 2 July 2018 at 21:29, Alex Deucher <alexdeucher at gmail.com> wrote: >> On Mon, Jul 2, 2018 at 3:21 PM, Daniel Andersson <engywook at gmail.com> wrote: >>> I get: >>> [drm:dc_link_detect [amdgpu]] *ERROR* No EDID read. >>> on boot. This started happening on 4.17 and is still an issue on 4.18-rc2. >>> >>> I have a Vega64 connected on Display Port to a monitor(1440p). The monitor >>> doesn't have any additional ports so I can't test HDMI. >>> >>> xrandr: >>> Screen 0: minimum 320 x 200, current 1024 x 768, maximum 16384 x 16384 >>> DisplayPort-0 connected 1024x768+0+0 (normal left inverted right x axis y >>> axis) 0mm x 0mm >>> 1024x768 60.00* >>> 800x600 60.32 56.25 >>> 848x480 60.00 >>> 640x480 59.94 >>> DisplayPort-1 disconnected (normal left inverted right x axis y axis) >>> HDMI-A-0 disconnected (normal left inverted right x axis y axis) >>> HDMI-A-1 disconnected (normal left inverted right x axis y axis) >>> >>> The 1440p resolution worked on 4.16. >> >> Can you use git to bisect? >> >> Alex
