Public bug reported:
I have an AMD R9 380. This card under Windows displays full resolution
(1920x1200x60) all 3 of my monitors perfectly. The connection setup is 2
x DVI, 1 Display Port with an active adaptor convered to DVI.
Using AMDGPU, the 3rd monitor is properly detected, it's resolution is
detected and the card attempts to drive it, but the monitor cannot sync
the display signal and flickers endlessly trying to do so.
Dropping the 3rd monitor resolution to 1650x1080x60 displays an image,
but obviously not at full resolution.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg (not installed)
ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: X-Cinnamon
Date: Sat May 14 15:51:03 2016
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug rebecca resolution
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https://bugs.launchpad.net/bugs/1581745
Title:
3rd monitor can't display full-resolution with amdgpu and R9 380
Status in xorg package in Ubuntu:
New
Bug description:
I have an AMD R9 380. This card under Windows displays full resolution
(1920x1200x60) all 3 of my monitors perfectly. The connection setup is
2 x DVI, 1 Display Port with an active adaptor convered to DVI.
Using AMDGPU, the 3rd monitor is properly detected, it's resolution is
detected and the card attempts to drive it, but the monitor cannot
sync the display signal and flickers endlessly trying to do so.
Dropping the 3rd monitor resolution to 1650x1080x60 displays an image,
but obviously not at full resolution.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xorg (not installed)
ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: X-Cinnamon
Date: Sat May 14 15:51:03 2016
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
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