BUG: *ERROR* No EDID read
Daniel Andersson
engywook at gmail.com
Fri Jul 6 16:44:56 UTC 2018
Alright, I redid the bisect and this time ended up on
018d82e5f02ef3583411bcaa4e00c69786f46f19 . If I revert it, it fixes my
issue. Reverting it on 4.18-rc2 also works.
// Daniel
On 5 July 2018 at 21:47, Daniel Andersson <engywook at gmail.com> wrote:
> [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-linuxtest
> root=UUID=27247597-a354-42f3-8040-caff9592a297 drm.debug=0x4 rw quiet
> [ 0.000000] Kernel command line: BOOT_IMAGE=/vmlinuz-linuxtest
> root=UUID=27247597-a354-42f3-8040-caff9592a297 drm.debug=0x4 rw quiet
> [ 5.674793] [drm:bios_parser_get_firmware_info [amdgpu]] At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.674833] [drm:bios_parser_get_firmware_info [amdgpu]] *ERROR* At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.674887] [drm:bios_parser_get_firmware_info [amdgpu]] At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.674930] [drm:bios_parser_get_firmware_info [amdgpu]] *ERROR* At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.674974] [drm:bios_parser_get_firmware_info [amdgpu]] At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.675014] [drm:bios_parser_get_firmware_info [amdgpu]] *ERROR* At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.675056] [drm:bios_parser_get_firmware_info [amdgpu]] At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.675095] [drm:bios_parser_get_firmware_info [amdgpu]] *ERROR* At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.675138] [drm:bios_parser_get_firmware_info [amdgpu]] At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.675178] [drm:bios_parser_get_firmware_info [amdgpu]] *ERROR* At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.675221] [drm:bios_parser_get_firmware_info [amdgpu]] At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.675260] [drm:bios_parser_get_firmware_info [amdgpu]] *ERROR* At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.675304] [drm:bios_parser_get_firmware_info [amdgpu]] At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.675342] [drm:bios_parser_get_firmware_info [amdgpu]] *ERROR* At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.675384] [drm:bios_parser_get_firmware_info [amdgpu]] At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.675422] [drm:bios_parser_get_firmware_info [amdgpu]] *ERROR* At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.675465] [drm:bios_parser_get_firmware_info [amdgpu]] At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.675503] [drm:bios_parser_get_firmware_info [amdgpu]] *ERROR* At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.675587] [drm:bios_parser_get_firmware_info [amdgpu]] At
> bios_parser_get_firmware_info switch, got major 3 minor 1
> [ 5.675626] [drm:bios_parser_get_firmware_info [amdgpu]] *ERROR* At
> bios_parser_get_firmware_info switch, got major 3 minor 1
>
> I don't really know what is going on. If I go back to 4.17 and apply
> my "fix". It doesn't work. I suppose my bisect didn't get me the right
> commit. I probably never tested that the commit, from the bisect, was
> actually bad. I was also a little lazy and did "bisect start
> 29dcea88779c856c7dc92040a0c01233263101d4
> 6da6c0db5316275015e8cc2959f12a17584aeb64 -- drivers/gpu/drm/amd".
>
> I guess I'll try another bisect tomorrow on the entire tree, sorry for
> the extra work.
>
> // Daniel
>
> On 5 July 2018 at 20:22, Harry Wentland <harry.wentland at amd.com> wrote:
>> On 2018-07-05 01:43 PM, Daniel Andersson wrote:
>>> Well, this workaround:
>>>
>>> diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
>>> b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
>>> index 10a5807a7e8b..d0f5910c906c 100644
>>> --- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
>>> +++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
>>> @@ -1321,6 +1321,8 @@ static enum bp_result bios_parser_get_firmware_info(
>>> header = GET_IMAGE(struct atom_common_table_header,
>>> DATA_TABLES(firmwareinfo));
>>> get_atom_data_table_revision(header, &revision);
>>> + dm_output_to_console("At bios_parser_get_firmware_info switch,
>>> got major %d minor %d", revision.major, revision.minor);
>>> + dm_error("At bios_parser_get_firmware_info switch, got major %d
>>> minor %d", revision.major, revision.minor);
>>> switch (revision.major) {
>>> case 3:
>>> switch (revision.minor) {
>>> @@ -1328,7 +1330,7 @@ static enum bp_result bios_parser_get_firmware_info(
>>> result = get_firmware_info_v3_1(bp, info);
>>> break;
>>> case 2:
>>> - result = get_firmware_info_v3_2(bp, info);
>>> + result = get_firmware_info_v3_1(bp, info);
>>> break;
>>> default:
>>> break;
>>>
>>> "works":
>>> [engy][~/devel/3pp/linux] ((6e65fb862064...)|BISECTING)$ xrandr
>>> Screen 0: minimum 320 x 200, current 2560 x 1440, maximum 16384 x 16384
>>> DisplayPort-0 connected 2560x1440+0+0 (normal left inverted right x
>>> axis y axis) 598mm x 336mm
>>> 2560x1440 59.95*+ 120.00 99.95 84.98 23.97
>>> 1920x1200 59.95
>>> 1920x1080 59.95
>>> 1600x1200 59.95
>>> 1680x1050 59.95
>>> 1280x1024 59.95
>>> 1440x900 59.95
>>> 1280x800 59.95
>>> 1280x720 59.95
>>> 1024x768 59.95
>>> 800x600 59.95
>>> 640x480 59.95
>>> 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)
>>>
>>> Where does dm_error and dm_output_to_console end up?
>>>
>>
>> dm_error -> DRM_ERROR will end up in dmesg as an error message
>> dm_output_to_console -> DRM_DEBUG_KMS will end up in dmesg as a normal log message if drm.debug=0x4 is set on the kernel command line
>>
>> I'd be curious what the driver thinks the major and minor are.
>>
>> Harry
>>
>>> // Daniel
>>>
>>> On 5 July 2018 at 18:42, Deucher, Alexander <Alexander.Deucher at amd.com> wrote:
>>>> So your vbios has table v3.1 so it should not be affected by that patch.
>>>> Does reverting that patch actually fix the issue?
>>>>
>>>>
>>>> Alex
>>>>
>>>> ________________________________
>>>> From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> on behalf of Daniel
>>>> Andersson <engywook at gmail.com>
>>>> Sent: Thursday, July 5, 2018 12:22:17 PM
>>>> To: Alex Deucher
>>>> Cc: amd-gfx at lists.freedesktop.org
>>>> Subject: Re: BUG: *ERROR* No EDID read
>>>>
>>>> I have not flashed any GPU BIOS. It's not a reference Vega though,
>>>> Sapphire something. Maybe they made changes?
>>>>
>>>> vbios is attached.
>>>>
>>>> // Daniel
>>>>
>>>> On 5 July 2018 at 15:38, Alex Deucher <alexdeucher at gmail.com> wrote:
>>>>> 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
>>> _______________________________________________
>>> amd-gfx mailing list
>>> amd-gfx at lists.freedesktop.org
>>> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
>>>
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