[Bug 101325] UE4Editor crash after pressing "play" with radeon southern island card (7850 HD)

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=101325

--- Comment #24 from Chrizz_-Oo> <cbalcev@hotmail.de> ---
https://pastebin.com/cyFJNbYu file: sleep 25; dmesg sync > bResponse
https://pastebin.com/HKywSKU4 file: text from the terminal

Those 3 files are my results. If needed some day.

As far as I can tell, this issue is also occuring here
https://bugs.freedesktop.org/show_bug.cgi?id=101977#c18 where you will also get
redirected to Git-pull:"linux : fix radeonsi/radev crashes during startup #390"

Good Luck!


Additional case info:

Graphics used: Radeon R9 280X was announced on September 25, 2013 (..) based on
the Tahiti XTL chip, being a slightly upgraded, rebranded Radeon HD 7970 GHz
Edition.

1# OS used: Mint 18.1. Problem: After launching in opengl3 or with no param,
graphic glitch appears. Striped/Colored.
Graphic glitches only affect areas of the loading screen. System did not
freeze.
After loading, the slightly bigger Editor window pops up, while the content
cannot be read, it still reacts to mouse hover events, causing even more small
gpu and opengl errors. (additional: without params, I can recall a message
opening saying "minimum of OpenGl 4.1 or 4.3(?) is required, try -opengl3".
Closing that message may have unblocked the Terminal.

No logs were made from OS #1.

2# OS used: Ubuntu 17.04. Problem: After launching in whatever mode, the result
is the same. Its worse. Whole system hangs. All displays start flickering
trying to find a signal and freeze in that state / eventually give up retrying. 
1. case: System freezes, with glitch from 1# OS in fullscreen. Then black.
Responsive for less than 55 seconds after init. I assume shell does not work
after time > 25 sec.
2. case: After several seconds the Monitor reappears, mouse is responding for
few seconds, then first case.
3. case: Either 1 or 2, then another reappear happens, colored in the
boot-scheme, red. Striped top down (thin lines). Looks nice, like a neat
webdesign. Followed up by hanging in blackness.

Both systems are not modified. Like, the use future kernels or amdgpu - fglrx
related. Transparent Terminals.

Much greeting, Chrizz_-Oo>

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