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Bug 884753

Summary: video area stops receiving any updates when on 2nd monitor (WXP) or when resolution changes during playback (all Windows)
Product: Red Hat Enterprise Linux 8 Reporter: David Jaša <djasa>
Component: spice-qxl-xddmAssignee: Kirill Moizik <kmoizik>
Status: CLOSED NOTABUG QA Contact: Desktop QE <desktop-qa-list>
Severity: low Docs Contact:
Priority: unspecified    
Version: ---CC: cfergeau, dblechte, djasa, kmoizik, marcandre.lureau, mkenneth, pvine, rbalakri, sstutsma
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-03-09 14:46:12 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 David Jaša 2012-12-06 16:34:17 UTC
Description of problem:
video area stops receiving any updates when resolution changes during playback

Version-Release number of selected component (if applicable):
host:
spice-server-0.12.0-6.el6.x86_64, or spice-server-0.10.1-10.el6.x86_64
qemu-kvm-0.12.1.2-2.337.el6.x86_64 or qemu-kvm-rhev-0.12.1.2-2.295.el6_3.5.x86_64

guest:
windows7 with qxl-win-0.1-17 or -12

How reproducible:
always

Steps to Reproduce:
1. play a video
2. resize r-v window or change resolution from VM
3. 
  
Actual results:
video area is black or contains leftover artifacts if covered & exposed again

Expected results:
video continues playing just fine

Additional info:
* I wasn't able to test without surfaces disabled
* rhel guest isn't affected with or without surfaces so this might be actually qxl-win bug

Comment 1 RHEL Program Management 2012-12-14 08:01:02 UTC
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.

Comment 3 Yonit Halperin 2013-05-20 15:40:15 UTC
How did you play the video? VLC? can you test if it doesn't happen on a physical machine?

Comment 4 David Jaša 2013-05-23 15:08:48 UTC
(In reply to Yonit Halperin from comment #3)
> How did you play the video? VLC?

Yes, VLC

> can you test if it doesn't happen on a
> physical machine?

Yes. The result is that video keeps playing fine after resolution change.

Comment 5 Yonit Halperin 2013-05-23 17:26:46 UTC
(In reply to David Jaša from comment #4)
> (In reply to Yonit Halperin from comment #3)
> > How did you play the video? VLC?
> 
> Yes, VLC
> 
> > can you test if it doesn't happen on a
> > physical machine?
> 
> Yes. The result is that video keeps playing fine after resolution change.

Well, it doesn't seem to be a spice-server bug. This can be either a qxl-win driver bug, or still VLC behaviour (with graphic cards that doesn't support directX?). We should check VLC on physical machine + changing the video output module (in the Tools dialog). I do remember seeing the same behavior on a physical machine a while ago.

Meanwhile, I will move the bug to qxl win driver.

Comment 6 David Jaša 2013-11-29 18:05:11 UTC
On Windows XP, there is easier way to trigger this bug: just run/move the video window to the 2nd monitor.

(In reply to Yonit Halperin from comment #5)
> We should check VLC on physical machine + changing the video
> output module (in the Tools dialog). I do remember seeing the same behavior
> on a physical machine a while ago.

Video outputs behaviour:
Automatic: as in bug subject
Direct3D: VLC logo displayed all the time
DirectX: as Automatic
Direct2D: as Direct3D
OpenGL: VLC crash
Windows GDI video output: works on both screens fine

Comment 8 Alon Levy 2014-05-01 15:19:42 UTC
Reducing severity to low since there is a workaround. Managed to reproduce but setting up debugging of vlc on windows is taking too much time (not a reason to stop, but I don't think this is high priority).

Comment 11 Yvugenfi@redhat.com 2015-02-19 13:01:10 UTC
Following comment #6: VLC default module on Windows is DirectX. Our driver doesn't support or expose DirectX functionality (QXL works on GDI level). 

I suggest to document and close the bug.

Comment 12 Kirill Moizik 2015-03-04 13:53:57 UTC
When driverX/automatic output selected, bug reproduced on many platforms and configurations, particularly on VNC without QXL driver installed (standart VGA device). If gdi output selected, bug does not reproduced. It seem like VLC bug, and it is definitely not qxl bug.

Comment 13 Sandy Stutsman 2015-09-15 15:25:04 UTC
*** Bug 1233973 has been marked as a duplicate of this bug. ***