[Bug 234646] kldload radeon kms - black screen

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=234646

Sean Farley <scf at FreeBSD.org> changed:

           What    |Removed                     |Added
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                 CC|                            |scf at FreeBSD.org

--- Comment #4 from Sean Farley <scf at FreeBSD.org> ---
(In reply to Chris Rees from comment #3)

I think this happened to me after upgrading a 12-STABLE system from r354521 to
r357245.  However, my system is unresponsive at this point.

Rebuilding the modules did not help until I upgraded the poudriere jail from
12.1-STABLE (maybe r354521?) to r357245.  Some KBI changed between the two
revisions?

It happened without Xorg at the moment radeonkms.ko was loaded.

Hardware:
vgapci0 at pci0:1:0:0:     class=0x030000 card=0x02721028 chip=0x94881002 rev=0x00
hdr=0x00
    vendor     = 'Advanced Micro Devices, Inc. [AMD/ATI]'
    device     = 'RV730/M96-XT [Mobility Radeon HD 4670]'
    class      = display
    subclass   = VGA
    bar   [10] = type Prefetchable Memory, range 32, base 0xd0000000, size
268435456, enabled
    bar   [14] = type I/O Port, range 32, base 0x2000, size 256, enabled
    bar   [18] = type Memory, range 32, base 0xcfef0000, size 65536, enabled
    cap 01[50] = powerspec 3  supports D0 D1 D2 D3  current D0
    cap 10[58] = PCI-Express 2 legacy endpoint max data 128(128) RO NS
                 link x16(x16) speed 2.5(2.5) ASPM L0s/L1(L0s/L1)
    cap 05[a0] = MSI supports 1 message, 64 bit enabled with 1 message
    ecap 000b[100] = Vendor 1 ID 1
    PCI errors = Signalled System Error
  PCI-e errors = Non-Fatal Error Detected
                 Unsupported Request Detected

Packages:
drm-fbsd12.0-kmod-4.16.g20200115
drm-kmod-g20190710
gpu-firmware-kmod-g20191015

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