Public bug reported:
Horizontal lines crossing the screen. I notice waves on screen (as if
the refresh rate is too low). This is more noticeable on dark colors
like gray and also on transparencies (like the dash).
This is not an hardware problem. On windows everything works fine I also
notice that this waves only appear when the "ubuntu" logo first shows on
the screen when booting i.e. not in grub or bios screen.
I have already reinstalled drivers, changed resolution, changed refresh
rate on compiz settings, etc. This just keep happening.
Also it seems this doesn't happen with modeset disabled.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-35-generic 3.2.0-35.55
ProcVersionSignature: Ubuntu 3.2.0-35.55-generic 3.2.34
Uname: Linux 3.2.0-35-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu15.1
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: sergio 2305 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf1610000 irq 47'
Mixer name : 'Intel PantherPoint HDMI'
Components : 'HDA:10ec0269,144dc0d5,00100202
HDA:80862806,80860101,00100000'
Controls : 29
Simple ctrls : 13
Date: Sat Jan 5 16:30:30 2013
HibernationDevice: RESUME=UUID=c705a171-743c-451f-91bb-95bd87247e10
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64
(20120823.1)
MachineType: SAMSUNG ELECTRONICS CO., LTD. 700Z3C/700Z5C
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-35-generic
root=UUID=39d84ed3-e275-4f33-afc1-89e57c9f3238 ro quiet splash
video=1600x900@60 vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-35-generic N/A
linux-backports-modules-3.2.0-35-generic N/A
linux-firmware 1.79.1
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/02/2012
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: P03AAG
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: SAMSUNG_NP1234567890
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnPhoenixTechnologiesLtd.:bvrP03AAG:bd08/02/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn700Z3C/700Z5C:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 700Z3C/700Z5C
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise running-unity staging third-party-packages
** Attachment removed: "WifiSyslog.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1096398/+attachment/3474937/+files/WifiSyslog.txt
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https://bugs.launchpad.net/bugs/1096398
Title:
Wavy screen on ubuntu 12.04
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