https://bugs.freedesktop.org/show_bug.cgi?id=105423
Bug ID: 105423 Summary: Unable to unbind my 2nd GPU (Rx580) Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: berillions@gmail.com
Hi,
I have a problem when i want to unbind my 2nd GPU to bind it to VFIO.
I create a xorg.conf like that : https://pastebin.com/3FfYJq1B
But even if X is closed (by /etc/init.d/xdm stop), i have a crash log in dmesg : https://pastebin.com/uAbjvJY3
thanks for your help, Maxime
https://bugs.freedesktop.org/show_bug.cgi?id=105423
--- Comment #1 from Max berillions@gmail.com --- Ok, i found an interesting thing. I have this issue when i unbind my GPU on Kernel 4.15 but i have no issue when i do it on kernel 4.14.
I'll try to git bisect between kernel 4.15 and kernel 4.14.
https://bugs.freedesktop.org/show_bug.cgi?id=105423
--- Comment #2 from Max berillions@gmail.com --- Thanks to Nick Sarnie on Discord, he found that disable completely DC fix the issue.
I fix it with "amdgpu.dc=0" in my grub.conf
https://bugs.freedesktop.org/show_bug.cgi?id=105423
Max berillions@gmail.com changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |INVALID
https://bugs.freedesktop.org/show_bug.cgi?id=105423
--- Comment #3 from Andrey Grodzovsky andrey.grodzovsky@amd.com --- (In reply to Max from comment #2)
Thanks to Nick Sarnie on Discord, he found that disable completely DC fix the issue.
I fix it with "amdgpu.dc=0" in my grub.conf
Did you try latest kernel (4.16.rc4 i think) seems to me this issue is already fixed there in DC.
Andrey
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