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Bug 1372758

Summary: [NVS 510] black space in place of turned off monitor
Product: Red Hat Enterprise Linux 7 Reporter: Tomas Hudziec <thudziec>
Component: control-centerAssignee: Matthias Clasen <mclasen>
Status: CLOSED CURRENTRELEASE QA Contact: Desktop QE <desktop-qa-list>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 7.3CC: tpelka
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
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Last Closed: 2018-08-31 14:06:53 UTC Type: Bug
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
black area in place of turned off monitor none

Description Tomas Hudziec 2016-09-02 14:59:04 UTC
Created attachment 1197239 [details]
black area in place of turned off monitor

Description of problem:
When middle display of 3 or 4 displays is turned off, it still holds place in extended desktop configuration. 

Version-Release number of selected component (if applicable):
xorg-x11-drv-nouveau-1.0.11-4.el7.x86_64

How reproducible:
always

Steps to Reproduce:
1.have 3 monitors
2.in display settings, turn off the middle one

Actual results:
There will be gap between two outer screens. Mouse can travel there and also window can be placed there.

Expected results:
Screens should be placed next to each other without any gap.

Additional info:
graphical card NVIDIA Corporation GK107 [NVS 510] [10de:0ffd]

Comment 3 Ben Skeggs 2017-07-27 11:22:36 UTC
Deciding how to lay out the desktop isn't driver-related, reassigning.

Comment 4 Ray Strode [halfline] 2017-07-27 16:29:31 UTC
looks like cc-display-panel.c has a function realign_outputs_after_resolution_change that needs to get called when a display is marked inactive (and it maybe needs to be slightly modified, too).

moving to control-center

Comment 6 Tomas Hudziec 2018-08-31 14:06:53 UTC
Not reproducible in RHEL 7.6. After turning off the middle monitor via display settings it makes gap between side diplays, but user must drag one to another to apply changes.