Public bug reported:
I've had this issue on my iMac 7,1 A1224 ever since I've installed
Ubuntu 16.04. When waking from suspend, the screen will be washed out.
Rebooting the system fixes this issue. I am aware that this issue
happens for this machine across other versions of Ubuntu and the Linux
kernel (is that a thing? I'm pretty inept), but I have been unable to
find a resolution.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-31-generic 4.4.0-31.50
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: alex 1884 F.... pulseaudio
CurrentDesktop: GNOME
Date: Wed Aug 3 08:15:39 2016
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=8c3c66ec-44dd-4529-b552-ea8363ccc781
InstallationDate: Installed on 2016-07-30 (4 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Apple Inc. iMac7,1
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-31-generic.efi.signed
root=UUID=31f3cd66-85f4-415f-bafb-9d68c2e6597e ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.4.0-31-generic N/A
linux-backports-modules-4.4.0-31-generic N/A
linux-firmware 1.157.2
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/05/08
dmi.bios.vendor: Apple Inc.
dmi.bios.version: IM71.88Z.007A.B03.0803051705
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Mac-F4238CC8
dmi.board.vendor: Apple Inc.
dmi.board.version: PVT
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 13
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F4238CC8
dmi.modalias:
dmi:bvnAppleInc.:bvrIM71.88Z.007A.B03.0803051705:bd03/05/08:svnAppleInc.:pniMac7,1:pvr1.0:rvnAppleInc.:rnMac-F4238CC8:rvrPVT:cvnAppleInc.:ct13:cvrMac-F4238CC8:
dmi.product.name: iMac7,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug xenial
** Attachment added: "ubuntu bug.JPG"
https://bugs.launchpad.net/bugs/1609598/+attachment/4713555/+files/ubuntu%20bug.JPG
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https://bugs.launchpad.net/bugs/1609598
Title:
iMac 7,1 Screen "Bleached"/Corrupted after Waking from Suspend
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