Bug 1076774

Summary: Test case failure: Multihead - Large Desktop on ATI Bonaire [1002:6650]
Product: Red Hat Enterprise Linux 7 Reporter: Vasiliy Sharapov <vsharapo>
Component: kernelAssignee: Jérôme Glisse <jglisse>
kernel sub component: Graphics QA Contact: Desktop QE <desktop-qa-list>
Status: CLOSED CURRENTRELEASE Docs Contact:
Severity: unspecified    
Priority: unspecified CC: jglisse
Version: 7.0   
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2014-10-22 13:16:20 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Vasiliy Sharapov 2014-03-15 01:44:01 UTC 
Filed from caserun https://tcms.engineering.redhat.com/run/120148/#caserun_4488187

Version-Release number of selected component (if applicable):
RHEL-7.0-20140214.0

Steps to Reproduce: 
 1. obtain a card that is capable to connect 4 screens and 4 monitors
 2. plug everything together and start GNOME


 1. go into Control Center -> Display
 2. Create 4x1 setup with all displays set to the same resolution
 3. Create 2x2 setup
 4. Create 1x4 setup with all displays set to different resolution



Actual results: 
Fourth monitor is initially functional, but after 2-5 layout changes, it shuts off - goes to sleep while X still thinks it's fine.

Expected results:
you should be able to move cursor from one screen to another flawlessly in all
setups.

In different resolution setup there should be borders where you cannot pass to
another screen accordingly
Comment 1 Jérôme Glisse 2014-07-17 15:28:29 UTC 
This should already work in 7.0 but reassigning to kernel as if it is an issue than it is a kernel issue.
Comment 2 Vasiliy Sharapov 2014-10-22 13:08:38 UTC 
Retested on build : RHEL-7.1-20141006.1
  linux-firmware-20140911-0.1.git365e80c.el7.noarch
  kernel-3.10.0-175.el7.x86_64
  mesa-dri-drivers-10.2.7-3.20140910.el7.x86_64
  xorg-x11-drv-ati-7.4.0-1.20140918git56c7fb8.el7.x86_64
  xorg-x11-glamor-0.6.0-2.20140918git347ef4f.el7.x86_64
No longer affects:  Radeon HD 8770 [1002:6650]
Wow, dual-link DVI-D works! Awesome.
Takes a long time to un-corrupt background after setting mode, not sure if this is expected.