[Bug 101377] Gigabyte R9 380 card fails to load, kernel reports bug

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=101377

--- Comment #8 from john@dev1ce.com ---
My apologies as it seems I didn't fully understand the proposed workaround. 
I'll test this out.

On July 30, 2017 2:12:23 PM PDT, bugzilla-daemon@freedesktop.org wrote:
>https://bugs.freedesktop.org/show_bug.cgi?id=101377
>
>--- Comment #7 from r380bug@safetymail.info ---
>Either you have a different problem than me (unlikely, as we have the
>exact
>same symptoms), or you misunderstood my workaround. Or my workaround
>somehow
>doesn't work for you. However, since you talk about actually upgrading
>the
>firmware to a newer version, I'm guessing you didn't understand the
>workaround.
>
>For my workaround, I neither upgraded nor downgraded any firmware
>version.
>However, Linux 4.8 and Linux 4.9 try to load different files for the
>same
>graphics card. Linux 4.8 loads tonga_smc.bin where as Linux 4.9 loads
>tonga_k_smc.bin. Linux 4.8 fully works for me, including 3D
>acceleration, Linux
>4.9 runs into the symptoms you described (black screen, fans running
>full
>speed).
>
>Now, if I replace tonga_k_smc.bin with tonga_smc.bin, then Linux 4.9
>_also_
>fully works for me, including 3D acceleration. That's without upgrading
>or
>downgrading any firmware files. All I did was this:
>
>cp /lib/firmware/amdgpu/tonga_smc.bin
>/lib/firmware/amdgpu/tonga_k_smc.bin
>
>Here's the md5sum of all my Tonga firmware files:
>fa6590cc9c9c1b2e7c92874fe98460fa  tonga_ce.bin
>16bb427918581c29c2e910b5757a1b5b  tonga_k_smc.bin
>73befe8abbaa7589d4e701ff77291e62  tonga_k_smc.bin.orig
>8ab907852fc93520ad5f0e06dc23298e  tonga_mc.bin
>a0fcc61ba211ab74829219a4e2282654  tonga_me.bin
>f904f1835656036fd83b0440ddc28528  tonga_mec2.bin
>f904f1835656036fd83b0440ddc28528  tonga_mec.bin
>89b0391b91ff7159a7b0670c8aace566  tonga_pfp.bin
>55f0a189959a11f07d4064a9f96adfb4  tonga_rlc.bin
>a61b84ca64068fa6842887a1519ecd4b  tonga_sdma1.bin
>8324b832498cb27c0919647df17968b4  tonga_sdma.bin
>16bb427918581c29c2e910b5757a1b5b  tonga_smc.bin
>fe37ee3d6138cd852215b318cbe65d0a  tonga_uvd.bin
>1a81cffe8a10460b8ca9eaad537e7286  tonga_vce.bin
>
>Note that tonga_k_smc.bin and tonga_smc.bin have the same md5sum on my
>system,
>because I copied tonga_smc.bin to tonga_k_smc.bin to make Linux 4.9
>work.
>
>-- 
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