Comment 21 for bug 964231

Yep. I will try to get to this today.

Tom Deering | PhD Student | ISU ECpE Software Systems | (563) 249-9277

On Thu, Apr 18, 2013 at 7:56 AM, Robert Hooker <email address hidden> wrote:

> Would it be possible to get the info requested in comment #10 please?
> Does booting with drm_kms_helper.poll=0 added to the kernel command line
> help? That is the fix for the known stall referenced in comment #6. Is
> there a known good kernel that does work, and if not would it be
> possible to try later kernels to see if they do work please? Seeing if
> it works properly on http://kernel.ubuntu.com/~kernel-
> ppa/mainline/v3.8.8-raring/ for instance would be a helpful start.
>
> ** Changed in: linux (Ubuntu)
> Status: Confirmed => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/964231
>
> Title:
> System Stutter When HDMI Monitor Is Connected
>
> Status in “linux” package in Ubuntu:
> Incomplete
> Status in “linux” source package in Precise:
> Confirmed
> Status in “linux” source package in Quantal:
> Confirmed
>
> Bug description:
> With a fresh install of Ubuntu 11.10 x64, the system has many
> "microfreezes" when I connect an external monitor via HDMI. These last
> maybe 10ms and occur about once per second. As I move my cursor around
> the screen, it stops motion during these microfreezes, causing a very
> irritating stutter effect. This only happens when using HDMI- when
> connected via VGA to an external monitor, the system behaves smoothly
> as expected.
>
> I started a thread about this a long time ago, but I never did find an
> answer: http://ubuntuforums.org/showthread.php?t=1817910
>
> ProblemType: Bug
> DistroRelease: Ubuntu 11.10
> Package: xorg 1:7.6+7ubuntu7.1
> Uname: Linux 3.3.0-030300rc7-generic x86_64
> .tmp.unity.support.test.0:
>
> ApportVersion: 1.23-0ubuntu4
> Architecture: amd64
> CompizPlugins:
> [core,bailer,detection,composite,opengl,compiztoolbox,decor,grid,move,vpswitch,place,mousepoll,resize,wall,regex,session,snap,gnomecompat,imgpng,animation,expo,workarounds,unitymtgrabhandles,ezoom,fade,scale,unityshell]
> CompositorRunning: compiz
> Date: Sat Mar 24 18:30:09 2012
> DistUpgraded: Fresh install
> DistroCodename: oneiric
> DistroVariant: ubuntu
> ExtraDebuggingInterest: Yes, if not too technical
> GraphicsCard:
> Intel Corporation 2nd Generation Core Processor Family Integrated
> Graphics Controller [8086:0116] (rev 09) (prog-if 00 [VGA controller])
> Subsystem: Device [1b0a:2080]
> InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64
> (20111012)
> MachineType: PEGATRON CORPORATION A15
> ProcEnviron:
> PATH=(cususername, no user)
> LANG=en_US.UTF-8
> SHELL=/bin/bash
> ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.3.0-030300rc7-generic
> root=UUID=a19e39dd-b510-4f9d-93f5-de6d40df10f1 ro quiet splash vt.handoff=7
> SourcePackage: xorg
> Symptom: display
> Title: Xorg freeze
> UpgradeStatus: No upgrade log present (probably fresh install)
> dmi.bios.date: 06/17/2011
> dmi.bios.vendor: American Megatrends Inc.
> dmi.bios.version: 211
> dmi.board.asset.tag: ATN12345678901234567
> dmi.board.name: A15
> dmi.board.vendor: PEGATRON CORPORATION
> dmi.board.version: 1.0
> dmi.chassis.asset.tag: No Asset Tag
> dmi.chassis.type: 9
> dmi.chassis.vendor: PEGATRON Computer Inc.
> dmi.chassis.version: 1.0
> dmi.modalias:
> dmi:bvnAmericanMegatrendsInc.:bvr211:bd06/17/2011:svnPEGATRONCORPORATION:pnA15:pvr1.0:rvnPEGATRONCORPORATION:rnA15:rvr1.0:cvnPEGATRONComputerInc.:ct9:cvr1.0:
> dmi.product.name: A15
> dmi.product.version: 1.0
> dmi.sys.vendor: PEGATRON CORPORATION
> version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu6.1
> version.ia32-libs: ia32-libs N/A
> version.libdrm2: libdrm2 2.4.26-1ubuntu1
> version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3
> version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
> version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3
> version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7.1
> version.xserver-xorg-input-evdev: xserver-xorg-input-evdev
> 1:2.6.0-1ubuntu13
> version.xserver-xorg-video-ati: xserver-xorg-video-ati
> 1:6.14.99~git20110811.g93fc084-0ubuntu1
> version.xserver-xorg-video-intel: xserver-xorg-video-intel
> 2:2.15.901-1ubuntu2.1
> version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
> 1:0.0.16+git20110411+8378443-1
>
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