Bug 66386

Summary: Cruft is sometimes displayed on second monitor when their positions are not adjacent
Product: xorg Reporter: Michał Górny <mgorny>
Component: Driver/RadeonAssignee: xf86-video-ati maintainers <xorg-driver-ati>
Status: RESOLVED MOVED QA Contact: Xorg Project Team <xorg-team>
Severity: normal    
Priority: medium    
Version: git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments:
Description Flags
Photo showing the issue none

Description Michał Górny 2013-06-29 20:04:24 UTC
Created attachment 81723 [details]
Photo showing the issue

I'm using live xorg with Radeon HD5450. I have two monitors connected and I wanted to set up the second monitor right of the first one with some invisible space added (to avoid window shadows leaking to the second screen).

I've noticed that with some --pos values (especially odd ones), a line of cruft is drawn on the left hand side of the screen. I've attached a photo showing that line.

For example, I see a similar line when using:

  $ xrandr --output VGA-0 --pos 1350x0

(with the other screen running at 1280x1024)

However, the exact shape and colors of the line differ with every xrandr call. I suspect it has something with modulo 8, maybe memory clearing issue or something like that.
Comment 1 Martin Peres 2019-11-19 07:41:32 UTC
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/xorg/driver/xf86-video-ati/issues/70.

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.