This log shows that the probing detects the high resolution modes [ 111.418] (II) AMDGPU(0): Printing probed modes for output DisplayPort-0 [ 111.418] (II) AMDGPU(0): Modeline "3840x2160"x60.0 533.25 3840 3888 3920 4000 2160 2163 2168 2222 +hsync -vsync (133.3 kHz eP) [ 111.418] (II) AMDGPU(0): Modeline "3840x2160"x30.0 297.00 3840 4016 4104 4400 2160 2168 2178 2250 +hsync +vsync (67.5 kHz e)
but doesn't appear to determine anything via DDC on the displayport. Again this doesn't seem to have been an issue until the driver updates applied on the 23rd (dpkg.log in separate attachment), ** Attachment added: "Xorg.0.log" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1784240/+attachment/5169275/+files/Xorg.0.log -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1784240 Title: Driver doesn't correctly probe Samsung U28D590D 28-inch 4k after recent update Status in xorg package in Ubuntu: New Bug description: This monitor was correctly detected and worked properly at maximum resolution for the last 2 years, but X no longer correctly identifies the monitor and now only proposes a maximum display resolution of 1368x768 since a recent update. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg (not installed) ProcVersionSignature: Ubuntu 4.15.0-29.31~16.04.1-generic 4.15.18 Uname: Linux 4.15.0-29-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2.18 Architecture: amd64 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,workarounds,scale,expo,ezoom] CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Sun Jul 29 11:10:25 2018 DistUpgraded: Fresh install DistroCodename: xenial DistroVariant: ubuntu EcryptfsInUse: Yes ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Device [1002:67ef] (rev cf) (prog-if 00 [VGA controller]) Subsystem: XFX Pine Group Inc. Device [1682:9460] InstallationDate: Installed on 2016-05-20 (800 days ago) InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.3) MachineType: Gigabyte Technology Co., Ltd. GA-990FXA-UD3 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-29-generic root=/dev/mapper/Whiteygu-lvm--root ro SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/30/2012 dmi.bios.vendor: Award Software International, Inc. dmi.bios.version: F8 dmi.board.name: GA-990FXA-UD3 dmi.board.vendor: Gigabyte Technology Co., Ltd. dmi.board.version: x.x dmi.chassis.type: 3 dmi.chassis.vendor: Gigabyte Technology Co., Ltd. dmi.modalias: dmi:bvnAwardSoftwareInternational,Inc.:bvrF8:bd05/30/2012:svnGigabyteTechnologyCo.,Ltd.:pnGA-990FXA-UD3:pvr:rvnGigabyteTechnologyCo.,Ltd.:rnGA-990FXA-UD3:rvrx.x:cvnGigabyteTechnologyCo.,Ltd.:ct3:cvr: dmi.product.name: GA-990FXA-UD3 dmi.sys.vendor: Gigabyte Technology Co., Ltd. version.compiz: compiz 1:0.9.12.3+16.04.20180221-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.91-2~16.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 17.0.7-0ubuntu0.16.04.2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~16.04.1 version.xserver-xorg-core: xserver-xorg-core N/A version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A xserver.bootTime: Sun Jul 29 09:18:04 2018 xserver.configfile: default xserver.errors: AMDGPU(0): Failed to open amdgpu hybrid version xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.19.6-1ubuntu4~16.04.1 xserver.video_driver: amdgpu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1784240/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
