My Xorg.0.log including logs of me switching modes many times. ** Attachment added: "Xorg.0.log" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819383/+attachment/5245273/+files/Xorg.0.log
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1819383 Title: VEGA 64 config for 1680x1050 is incorrect Status in linux package in Ubuntu: New Bug description: 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819383/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
