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<b><a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - blackscreen after modprobe amdgpu on R9M370X mac edition"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101988#c5">Comment # 5</a>
on <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - blackscreen after modprobe amdgpu on R9M370X mac edition"
href="https://bugs.freedesktop.org/show_bug.cgi?id=101988">bug 101988</a>
from <span class="vcard"><a class="email" href="mailto:newincpp@gmail.com" title="newincpp@gmail.com">newincpp@gmail.com</a>
</span></b>
<pre>I cloned "~agd5f/linux" on the branch "drm-next-4.14-wip" and copied my .config
from the 4.12.4 I was using.
`uname -r` give me "4.12.0-rc7+"
Now `modprobe amdgpu` is freezing my screen instead of blackscreen.
`dmesg | grep amdgpu -i` give this :
[ 107.804074] [drm] amdgpu kernel modesetting enabled.
[ 107.804109] fb: switching to amdgpudrmfb from EFI VGA
[ 107.804672] amdgpu 0000:01:00.0: SI support provided by radeon.
[ 107.804674] amdgpu 0000:01:00.0: Use radeon.si_support=0 amdgpu.si_support=1
to override.
Using 4.12.4 my second screen was fine, that isn't the case anymore with
drm-next-4.14-wip.
Using 4.12.4 I could startx (with a second screen obviously, my main screen was
remaining black) now startx seems to return "no screen found".
Note that radeon is still working perfectly.</pre>
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