Public bug reported:

Using both my nvidia and radeon cards my 2560x1600 display flickers.
The screen is fine in Windows.  This only seems to happen when I run the
open source driver.

Additionally, if I drop that screen to a lower 16:10 resolution like
1920x1200 it goes black.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: xorg 1:7.7+19ubuntu1
ProcVersionSignature: Ubuntu 4.11.0-13.19-generic 4.11.12
Uname: Linux 4.11.0-13-generic x86_64
ApportVersion: 2.20.6-0ubuntu5
Architecture: amd64
CompositorRunning: None
CurrentDesktop: GNOME
Date: Tue Aug 15 22:32:41 2017
DistUpgraded: Fresh install
DistroCodename: artful
DistroVariant: ubuntu
DkmsStatus:
 bbswitch, 0.8, 4.11.0-10-generic, x86_64: installed
 bbswitch, 0.8, 4.11.0-13-generic, x86_64: installed
 nvidia-384, 384.59, 4.11.0-10-generic, x86_64: installed
 nvidia-384, 384.59, 4.11.0-13-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Baffin [Polaris11] [1002:67ff] (rev cf) 
(prog-if 00 [VGA controller])
   Subsystem: Micro-Star International Co., Ltd. [MSI] Baffin [Polaris11] 
[1462:8a91]
InstallationDate: Installed on 2017-08-07 (9 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170805)
MachineType: System manufacturer System Product Name
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.11.0-13-generic 
root=UUID=adb3a033-d515-4dfb-97d6-7c0ef12879cf ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/22/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1807
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P7P55D DELUXE
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr1807:bd07/22/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP7P55DDELUXE:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz N/A
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.82-1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.1.4-1ubuntu1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 17.1.4-1ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.3-1ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.9.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20170309-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
xserver.bootTime: Mon Aug 14 07:40:51 2017
xserver.configfile: default
xserver.errors:
 
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 
xserver.version: 2:1.19.3-1ubuntu2

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug artful reproducible ubuntu wayland-session

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https://bugs.launchpad.net/bugs/1711037

Title:
  Screen intermittently flickers

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