[Bug 27192] New: bad double buffering or vertical sync

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=27192

           Summary: bad double buffering or vertical sync
           Product: xorg
           Version: 7.4
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Keywords: regression
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: bryce at canonical.com
         QAContact: xorg-team at lists.x.org


Forwarding this bug from Ubuntu reporter salva:
http://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/514245

[Problem]
Video playback is not smooth.  

[Original Description]
Reproducing video with totem or mplayer does not go smoothly, consecutive
frames are mixed. It looks as if that double buffering was not being use or the
buffer swapping was not synchronized with video vertical sync.

It happens both in full screen and in window mode.

I didn't have this problem with Ubuntu 9.10.

This is in dmesg:
[    1.762832] [drm] radeon: 1 quad pipes, 1 z pipes initialized.
[    1.893527] Failed to wait MC idle while programming pipes. Bad things might
happen.

Architecture: amd64
Date: Fri Jan 29 12:17:36 2010
DistroRelease: Ubuntu 10.04
DkmsStatus:
 virtualbox-ose, 3.1.2, 2.6.32-12-generic, x86_64: installed 
 virtualbox-ose, 3.1.2, 2.6.32-11-generic, x86_64: installed 
 virtualbox-ose, 3.1.2, 2.6.32-10-generic, x86_64: installed
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Alpha amd64 (20091209)
MachineType: Hewlett-Packard HP dx5150 SFF
Package: xserver-xorg-video-radeon 1:6.12.99+git20100126.e5933fd7-0ubuntu1
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-12-generic
root=UUID=564eb7dd-0d11-4482-b882-f3794a37eb34 ro quiet splash
ProcEnviron:
 LANG=en_US.utf8ProcVersionSignature: Ubuntu 2.6.32-12.16-generic
RelatedPackageVersions:
 xserver-xorg 1:7.5+1ubuntu2
 libgl1-mesa-glx 7.7-0ubuntu8
 libdrm2 2.4.17-0ubuntu2
 xserver-xorg-video-intel 2:2.9.1-1ubuntu3
SourcePackage: xserver-xorg-video-ati
Uname: Linux 2.6.32-12-generic x86_64
dmi.bios.date: 02/24/2006
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 1.13
dmi.board.name: 09AC
dmi.board.vendor: MSI
dmi.chassis.asset.tag: CZC62933NH
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnPhoenixTechnologies,LTD:bvr1.13:bd02/24/2006:svnHewlett-Packard:pnHPdx5150SFF:pvr:rvnMSI:rn09AC:rvr:cvnHewlett-Packard:ct3:cvr:
dmi.product.name: HP dx5150 SFF
dmi.sys.vendor: Hewlett-Packard
glxinfo: Error: [Errno 2] No such file or directory
system: architecture:       x86_64kernel:             2.6.32-12-generic


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