Bug 1489565 - Unable to view 4 of 6 connected monitors with nvidia drivers
Summary: Unable to view 4 of 6 connected monitors with nvidia drivers
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: xorg-x11-drv-nouveau
Version: 7.4
Hardware: x86_64
OS: Linux
Target Milestone: rc
: ---
Assignee: Ben Skeggs
QA Contact: Desktop QE
Depends On:
TreeView+ depends on / blocked
Reported: 2017-09-07 18:25 UTC by Louis Santillan
Modified: 2018-03-15 06:03 UTC (History)
0 users

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2018-03-15 06:03:25 UTC
Target Upstream Version:

Attachments (Terms of Use)
sos (14.12 MB, application/x-xz)
2017-09-07 18:25 UTC, Louis Santillan
no flags Details

Description Louis Santillan 2017-09-07 18:25:11 UTC
Created attachment 1323407 [details]

Description of problem:
I am unable to use 4 of 6 connected monitors in GNOME with the nVidia drivers.  While I could (occasionally) make the nouveau drivers work in the correct 3x2 alignment, there was often performance issue (screen/window/animation tearing or lag) and stability issues (random driver crashes that required costly reboots, monitors with incorrect identical output, monitors with no output), etc.  The nvidia drivers do not appear to have these issues.  However, I am unable to get GNOME to recognize and draw to all 6 monitors (only 2 outputs from primary video card are displayed).  GNOME is only able to draw to nVidia Quadro K2000 displays.  Others are marked disabled.

Personal (non-work) workstation.  HP z820, 2x Intel Xeon E5-2660 V1, 128GB RAM, nVidia Quadro K2000 (DisplayPort to DVI output, DVI output), 2x GeForce GT 710 (DVI output, HDMI to DVI output).

Version-Release number of selected component (if applicable):
RHEL 7.4
Linux 3.10.0-693.2.1.el7.x86_64
nVidia Drivers 384.59

How reproducible:

Steps to Reproduce:
1. Install nVidia Quadro K2000, 2x nVidia GeForce GT 710
2. Disable nouveau drivers
3. Install nVidia Drivers

Actual results:
Video cards connected to nVidia Quadro K2000 can display GNOME windows.

Expected results:
Ability to use 6 monitors connected to 3 video cards in 3x2 matrix.  Nouveau driver is able to accomplish this with significant performance and stability issues including graphics tearing and lag, driver crashes, and GNOME forgets/mis-aligns monitor config akin to the `GNOME forgets ~/.config/monitors.xml` issues.

Additional info:

Comment 2 Louis Santillan 2017-09-07 18:41:05 UTC
I should correct my language here.  The machine is a personally purchased workstation that I use for RH work (OpenShift, VMs, etc.).

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