Created attachment 1=
42997 [details]
Xorg.0.log with modesetting
I have 3 Dell WQHD Screens (2560x1440) screens, connected to a Radeon RX580
(XFX, RX-580 GTS Black Edition, 1425 MHz 8GB), running on Fedora 29.
My kernel is:
Linux edison 4.19.13-300.fc29.x86_64 #1 SMP Sat Dec 29 22:54:28 UTC 2018 x8=
6_64
x86_64 x86_64 GNU/Linux
On 2/3 monitors I get periodic random black screens for 1-2 seconds. The
display comes back and all appears normal after this happens.
I have tried both with and without modesetting enabled. Nothing at all appe=
ars
in either the kernel log when this happens, or in Xorg.0.log. I have attac=
hed
complete Xorg.0.log's and the relevant parts of dmesg (from boot to the very
last drm-related message).
I was sure this was a hardware issue, and after a debugging process with XFX
support in which they had me swapping monitors and cables, they RMAed my ca=
rd
and sent me a new one. However, the new card has very similar behavior (the=
old
card seemed to black screen only one monitor, the new seems to do two of th=
em,
but in exactly the same way, and I have also updated my kernel and OS since
then, so its possible the hardware is completely unrelated to the minor cha=
nge
in behavior).
Given the change in hardware, it seems likely to me this is a driver bug ra=
ther
than a hardware one.