VEGA 64 config for 1680x1050 is incorrect
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
xserver-xorg-video-amdgpu (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
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-
xserver-
Installed: 18.0.1-1
Candidate: 18.0.1-1
Version table:
*** 18.0.1-1 500
500 http://
100 /var/lib/
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/
/dev/snd/
/dev/snd/
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=
ProcVersionSign
RelatedPackageV
linux-
linux-
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.
dmi.board.name: X399 AORUS PRO-CF
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.family: Default string
dmi.product.name: X399 AORUS PRO
dmi.product.
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
My Xorg.0.log including logs of me switching modes many times.