Bug 1381437

Summary:	Test case failure: Screen - Resolution Change on Dell Precision 7710 - Amethyst XT [Radeon R9 M295X] [1002:6921]
Product:	Red Hat Enterprise Linux 7	Reporter:	Vasiliy Sharapov <vsharapo>
Component:	xorg-x11-drv-ati	Assignee:	Lyude <lyude>
Status:	CLOSED WONTFIX	QA Contact:	Desktop QE <desktop-qa-list>
Severity:	low	Docs Contact:
Priority:	low
Version:	7.5	CC:	lyude, tpelka
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Clone Of:		Environment:
Last Closed:	2020-12-15 07:46:49 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Vasiliy Sharapov 2016-10-04 06:08:40 UTC

Filed from caserun (https://tcms.engineering.redhat.com/run/289603/#caserun_13279407)

Version-Release number of selected component (if applicable):
RHEL-7.3-20160914.1
xorg-x11-server-Xorg-1.17.2-22.el7.x86_64
xorg-x11-drv-ati-7.6.1-3.20160215gitd41fccc.el7.x86_64
kernel-3.10.0-506.el7.x86_64
linux-firmware-20160830-49.git7534e19.el7.noarch
package mesa is not installed
mesa-dri-drivers-11.2.2-2.20160614.el7.x86_64
package xorg-x11-glamor is not installed

Steps to Reproduce: 
 1. execute xrandr and check your native resolution (marked with +)



 1. change resolution: $ xrandr --output LVDS1 --mode 640x480
 2. change resolution back to native via xrandr command



Actual results: 
Technically no bug as dictated by our test case but the interpolation is awful for this whole range of resolutions:
1680x1050
1400x1050
1280x1024
1440x900
1280x960
1280x854
1280x800
1280x720 <-- If you have to pick one, this is the worst.
1152x768
For example black-on-white text has horizontal white lines running through it.
This may be an issue with the prototype HW we have for testing - I don't know since I've never seen this issue. If interpolation is up to the display then I guess this is definitely not a bug.

Expected results:
screen should be changed to 640x480 and back to native resolution

Comment 2 Lyude 2017-07-27 20:41:15 UTC

The 7710 is made of pure evil and cannot be trusted. Please check https://bugzilla.redhat.com/show_bug.cgi?id=1381286#c2 and do that first before I look into this.

Comment 3 Vasiliy Sharapov 2017-08-08 07:00:19 UTC

Still horrendous on:
RHEL-7.4-20170711.0
xorg-x11-server-Xorg-1.19.3-11.el7.x86_64
xorg-x11-drv-ati-7.7.1-3.20160928git3fc839ff.el7.x86_64
package amdgpu is not installed
kernel-3.10.0-693.el7.x86_64
linux-firmware-20170606-56.gitc990aae.el7.noarch
package mesa is not installed
mesa-dri-drivers-17.0.1-6.20170307.el7.x86_64
package xorg-x11-glamor is not installed
libdrm-2.4.74-1.el7.x86_64

(In reply to Lyude from comment #2)
> The 7710 is made of pure evil and cannot be trusted. Please check
> https://bugzilla.redhat.com/show_bug.cgi?id=1381286#c2 and do that first
> before I look into this.

I'll bring it to Boston office for you. =)

Comment 5 RHEL Program Management 2020-12-15 07:46:49 UTC

After evaluating this issue, there are no plans to address it further or fix it in an upcoming release.  Therefore, it is being closed.  If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened.