apport information ** Tags added: apport-collected tessa
** Description changed: I have two AMD GPU cards in my system connected to an identical pair of older SAMSUNG monitors with native resolution of 1680x1050. $ lspci -d ::300 0a:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Vega 10 XT [Radeon RX Vega 64] (rev c1) 42:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV770 [Radeon HD 4850] The RV770 has successfully been connected to these two monitors for many years. Recently upgraded the motherboard and added the Vega 64 video card. Connecting DisplayPort from the Vega 64 to one monitor and the RV770 to the other, The Vega 64 monitor display is corrupted. See attached picture. I tried all the other supported modes for the monitor and the others all work fine (1024x768, 1280x1024, etc.) Although, it is perhaps interesting that 1680x1050 is the only 1.6:1 aspect ratio. The majority are 4:3 with 1280x1024 (5:4) and 720x400 (9:5) the exceptions. And all the other modes seem to display in a 4:3 subset of the pixels on the screen. I'll upload the /var/log/Xorg.0.log next. Other info: $ lsb_release -rd Description: Linux Mint 19.1 Tessa Release: 19.1 $ apt-cache policy xserver-xorg-video-amdgpu xserver-xorg-video-amdgpu: Installed: 18.0.1-1 Candidate: 18.0.1-1 Version table: *** 18.0.1-1 500 500 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages 100 /var/lib/dpkg/status EXPECTATION: Correct display output ACTUAL RESULT: "Torn" display. + --- + ProblemType: Bug + ApportVersion: 2.20.9-0ubuntu7.5 + Architecture: amd64 + AudioDevicesInUse: + USER PID ACCESS COMMAND + /dev/snd/pcmC1D0p: philip 2211 F...m pulseaudio + /dev/snd/controlC1: philip 2211 F.... pulseaudio + /dev/snd/controlC0: philip 2211 F.... pulseaudio + /dev/snd/controlC2: philip 2211 F.... pulseaudio + CurrentDesktop: X-Cinnamon + DistroRelease: Linux Mint 19.1 + InstallationDate: Installed on 2019-03-10 (0 days ago) + InstallationMedia: Linux Mint 19.1 "Tessa" - Release amd64 20181217 + IwConfig: + lo no wireless extensions. + + enp4s0 no wireless extensions. + MachineType: Gigabyte Technology Co., Ltd. X399 AORUS PRO + Package: linux (not installed) + ProcFB: + 0 radeondrmfb + 1 amdgpudrmfb + ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.15.0-46-generic root=UUID=14bde5f7-3295-4e41-bc36-8d22c00349f9 ro rootflags=subvol=@ quiet splash vt.handoff=1 + ProcVersionSignature: Ubuntu 4.15.0-46.49-generic 4.15.18 + RelatedPackageVersions: + linux-restricted-modules-4.15.0-46-generic N/A + linux-backports-modules-4.15.0-46-generic N/A + linux-firmware 1.173.3 + RfKill: + 0: hci0: Bluetooth + Soft blocked: no + Hard blocked: no + Tags: tessa + Uname: Linux 4.15.0-46-generic x86_64 + UpgradeStatus: No upgrade log present (probably fresh install) + UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo + _MarkForUpload: True + dmi.bios.date: 10/01/2018 + dmi.bios.vendor: American Megatrends Inc. + dmi.bios.version: F1 + dmi.board.asset.tag: Default string + dmi.board.name: X399 AORUS PRO-CF + dmi.board.vendor: Gigabyte Technology Co., Ltd. + dmi.board.version: x.x + dmi.chassis.asset.tag: Default string + dmi.chassis.type: 3 + dmi.chassis.vendor: Default string + dmi.chassis.version: Default string + dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF1:bd10/01/2018:svnGigabyteTechnologyCo.,Ltd.:pnX399AORUSPRO:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnX399AORUSPRO-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring: + dmi.product.family: Default string + dmi.product.name: X399 AORUS PRO + dmi.product.version: Default string + dmi.sys.vendor: Gigabyte Technology Co., Ltd. ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1819383/+attachment/5245277/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1819383 Title: VEGA 64 config for 1680x1050 is incorrect To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819383/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs