https://bugs.freedesktop.org/show_bug.cgi?id=93343
--- Comment #8 from Pierre Stander <snoo...@gmail.com> ---
Hello,
I would like to also confirm this bug, with some extra information.
The problem was resolved (for me) by booting with the kernel command line
parameter radeon.audio=0.
I have a muti-boot system:
a) booting: Win10/ Ubuntu14.04-LTS/ Ubuntu16.04-LTS.
b) Cypress PRO [Radeon HD 5850] in crossfire, both are identical XFX cards.
c) DELL U2515H (Native 2560x144) connect via DisplayPort
The problem only manifests under Ubuntu16.04-LTS, other OS boots work
correctly.
Ubuntu 14.04 info:
Kernel: 3.13.0-86-generic
Radeon Driver: [drm] Initialized radeon 2.36.0 20080528
Ubuntu 16.04 info:
Kernel: 4.4.0-34-generic
Radeon Driver: [drm] Initialized radeon 2.43.0 20080528
Kind Regards
Pierre
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