[Bug 50125] New: Radeon KMS mis-detects present connectors

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https://bugs.freedesktop.org/show_bug.cgi?id=50125

             Bug #: 50125
           Summary: Radeon KMS mis-detects present connectors
    Classification: Unclassified
           Product: DRI
           Version: XOrg CVS
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@xxxxxxxxxxxxxxxxxxxxx
        ReportedBy: bonbons67@xxxxxxxxxxx


Created attachment 61856
  --> https://bugs.freedesktop.org/attachment.cgi?id=61856
ROM, extracted from card0/device/rom

On a Gigabyte GA-A75M-UD2H mainboard with A8 3850 APU connectors reported by
radeon driver don't match those physically present.

The manual lists the following connector usage table:
- VGA   + DVI-D
- VGA   + HDMI    => only HDMI lit
- VGA   + DP
- DVI-D + HDMI
- DVI-D + DP      => only DP lit
- HDMI  + DP

In addition, mainboard allows configuring DVI-D output as Dual Link in which
case all other connectors would be disabled.


For full manual see
http://www.gigabyte.com/products/product-page.aspx?pid=3928#manual Connectors
are descibed in chapter 1-7 on pages 20 and 21.



Kernel log related to loading of radeon.ko:
[  750.904222] [drm] radeon defaulting to kernel modesetting.
[  750.904230] [drm] radeon kernel modesetting enabled.
[  750.904304] checking generic (d0000000 3aa000) vs hw (d0000000 10000000)
[  750.904310] fb: conflicting fb hw usage radeondrmfb vs EFI VGA - removing
generic driver
[  750.904558] Console: switching to colour dummy device 80x25
[  750.905927] [drm] initializing kernel modesetting (SUMO 0x1002:0x9640
0x1458:0xD000).
[  750.906061] [drm] register mmio base: 0xFDFC0000
[  750.906066] [drm] register mmio size: 262144
[  750.906584] ATOM BIOS: General
[  750.906618] radeon 0000:00:01.0: VRAM: 512M 0x0000000000000000 -
0x000000001FFFFFFF (512M used)
[  750.906626] radeon 0000:00:01.0: GTT: 512M 0x0000000020000000 -
0x000000003FFFFFFF
[  750.906640] mtrr: your BIOS has configured an incorrect mask, fixing it.
[  750.906645] mtrr: your BIOS has configured an incorrect mask, fixing it.
[  750.906649] mtrr: your BIOS has configured an incorrect mask, fixing it.
[  750.906654] mtrr: your BIOS has configured an incorrect mask, fixing it.
[  750.906658] mtrr: your BIOS has configured an incorrect mask, fixing it.
[  750.906663] mtrr: your BIOS has configured an incorrect mask, fixing it.
[  750.906668] mtrr: your BIOS has configured an incorrect mask, fixing it.
[  750.906672] mtrr: your BIOS has configured an incorrect mask, fixing it.
[  750.906677] mtrr: your BIOS has configured an incorrect mask, fixing it.
[  750.906681] mtrr: your BIOS has configured an incorrect mask, fixing it.
[  750.906685] mtrr: your BIOS has configured an incorrect mask, fixing it.
[  750.906690] mtrr: your BIOS has configured an incorrect mask, fixing it.
[  750.908508] [drm] Detected VRAM RAM=512M, BAR=256M
[  750.908516] [drm] RAM width 32bits DDR
[  750.908724] [TTM] Zone  kernel: Available graphics memory: 3822448 kiB
[  750.908732] [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
[  750.908737] [TTM] Initializing pool allocator
[  750.908760] [TTM] Initializing DMA pool allocator
[  750.908842] [drm] radeon: 512M of VRAM memory ready
[  750.908849] [drm] radeon: 512M of GTT memory ready.
[  750.908866] [drm] Supports vblank timestamp caching Rev 1 (10.10.2010).
[  750.908870] [drm] Driver supports precise vblank timestamp query.
[  750.908957] radeon 0000:00:01.0: irq 53 for MSI/MSI-X
[  750.908990] radeon 0000:00:01.0: radeon: using MSI.
[  750.909082] [drm] radeon: irq initialized.
[  750.909092] [drm] GART: num cpu pages 131072, num gpu pages 131072
[  750.910672] [drm] radeon: ib pool ready.
[  750.910804] [drm] Loading SUMO Microcode
[  750.935358] [drm] PCIE GART of 512M enabled (table at 0x0000000000040000).
[  750.935638] radeon 0000:00:01.0: WB enabled
[  750.935645] [drm] fence driver on ring 0 use gpu addr 0x20000c00 and cpu
addr 0xffff880205cd9c00
[  750.953738] [drm] ring test on 0 succeeded in 1 usecs
[  750.955543] [drm] ib test on ring 0 succeeded in 0 usecs
[  750.960348] [drm] Radeon Display Connectors
[  750.960354] [drm] Connector 0:
[  750.960358] [drm]   VGA
[  750.960362] [drm]   HPD2
[  750.960367] [drm]   DDC: 0x6440 0x6440 0x6444 0x6444 0x6448 0x6448 0x644c
0x644c
[  750.960372] [drm]   Encoders:
[  750.960375] [drm]     CRT1: INTERNAL_UNIPHY2
[  750.960379] [drm]     CRT1: NUTMEG
[  750.960382] [drm] Connector 1:
[  750.960385] [drm]   DVI-D
[  750.960388] [drm]   HPD1
[  750.960394] [drm]   DDC: 0x6430 0x6430 0x6434 0x6434 0x6438 0x6438 0x643c
0x643c
[  750.960398] [drm]   Encoders:
[  750.960401] [drm]     DFP1: INTERNAL_UNIPHY2
[  750.978771] [drm] Internal thermal controller without fan control
[  750.978986] [drm] radeon: power management initialized
[  751.051829] [drm] fb mappable at 0xD0142000
[  751.051831] [drm] vram apper at 0xD0000000
[  751.051832] [drm] size 5242880
[  751.051833] [drm] fb depth is 24
[  751.051834] [drm]    pitch is 5120
[  751.051935] fbcon: radeondrmfb (fb0) is primary device
[  751.136057] Console: switching to colour frame buffer device 160x64
[  751.148965] fb0: radeondrmfb frame buffer device
[  751.148969] drm: registered panic notifier
[  751.148987] [drm] Initialized radeon 2.15.0 20080528 for 0000:00:01.0 on
minor 0

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