Ubuntu / Apple :: Horizontal Line In The Upper Part Of Screen Which Believe Is A Screen Tearing?
Apr 24, 2011
I got macbook pro 5.1 recently upgraded to 11.04, all works out of the box! However when I watch movies or play a game from time to time I observe a horizontal line in the upper part of my screen which I believe is a screen tearing.Depending on a movie player this effect is more or less visible.nvidia propietary driver enabledvsync enabledcompiz settings adjusted (refresh rate ->60, vsync)nvidia-settings -l is loaded with the systemMaybe it's not a huge problem but everything works fine under osx
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May 21, 2011
This is weird. My computer boots completely fine. The only time I have screen tearing is coming out of suspend, and it only affects the sidebar and globalmenu bar.
Code:
unity --replace
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May 2, 2010
Vsync works normally, but when I try to watch video in fullscreen (be it ....., VLC or mplayer), the vsync just doesn't work and the screen tearing is terrible. I'm using the nvidia-nonfree 195.36.15 drivers (installed through the hardware drivers), on an nvidia geforce 8800 GTS 512 card.
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May 15, 2011
After upgrading to 11.04, my screen resolution was reset to 1024x768. As the native resolution for my monitor is 1920x1080, I went to reset that. The resolution didn't exist in the Monitors applications, so I did the following:
Code:
kane@Griffin:~$ cvt 1920 1080 60
# 1920x1080 59.96 Hz (CVT 2.07M9) hsync: 67.16 kHz; pclk: 173.00 MHz
Modeline "1920x1080_60.00" 173.00 1920 2048 2248 2576 1080 1083 1088 1120 -hsync +vsync
[Code].....
The monitor adjust, but most of the screen shows tearing and doesn't update correctly. Hard to explain, so I attached a screenshot at 1024x768, working normally, and 1920x1080, fubar. I've cropped these images to get them to fit the forum limitations, but they still show the issue.
My monitor is an LG Flatron W2253TQ, my graphics card is an ATI Radeon HD 4650, although the manufacturer is Biostar. I'm using the default free drivers.
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Apr 18, 2011
"screen tearing" whenever I scroll, watch flash videos, or any videos in general. I first noticed this in Fedora 14, and now I notice the same behaviour in Linux Mint.Does anyone know what might be causing this? My Graphics Card is: Nvidia Geforce GTX 280M (1GB) I'm using Nvidia proprietary drivers. Reading some forums I see that the problem might be related to Compiz. Here's my xorg.conf file (if needed);
Code:
Section "Screen"
Identifier"Default Screen"
DefaultDepth24
[code]....
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May 3, 2011
I'm currently running an up-to-date copy of Ubuntu 11.04, but I'm noticing some strange behavior with the monitor settings. First of all, I started investigating this because I'm seeing a lot of screen tearing while watching videos full screen as well as while the screensaver (lattice) is running. On Ubuntu 10.10 I was able to simply set the refresh rate of my monitor to 60Hz through the Nvidia tool and everything worked great. Now, this is no longer the case. I'm using a Samsung Syncmaster 205BW monitor with an Nvidia 8600 GT video card. They are connected with a DVI cable.The strange thing is, the default tool, Monitors, claims my monitor is "unknown" and will only allow me to select 50Hz, 51Hz, and sometimes 52Hz for the refresh rate.
The Nvidia tool claims that my monitor has been detected as a Samsung Syncmaster and is configured to run at 60Hz.However, another area of the Nvidia tool claims that my monitor is using a refresh rate of 59.95Hz. none of these solutions had any effect. I'm still seeing video tearing. I let the Nvidia tool re-write my xorg.conf file after trying these solutions.
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Jan 21, 2011
Everytime I boot up and get to the log in screen there are these horizontal bars across my screen how do I fix this? Is it my graphjcs card or something because I got an older hp pavilion laptop thats about 4 years old and is there a way to get these bars off my screen so I can see my laptop more clear?
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Sep 1, 2011
I on my computer when my monitor had lines on it and my speakers made odd sounds. The computer is 10 years old. It started this 3 months ago.
Compaq deskpro EN
Pentium !!! processor 996mhz
20 GB hard drive
Ubuntu 11.04
Relisys CRT monitor
Intel video and sound cards
It gets worse when I put my phone close to the screen (Motorola Razr V3v).
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Jul 24, 2010
I just got the new kernel update (2.6.32-24-generic, according to "uname -r"), and I went to restart my computer as the system requested. When I selected the new kernel from the boot menu, the Ubuntu splash screen came up, and then it did this subtle alternating shades of purple horizontal line thing. Then a vertical line appeared towards the right of the screen, and then everything faded into this cloudy, bright white splotchy...thing.
The keyboard was still responsive, and hitting ctrl+alt+delete restarted the machine, at which point I tried to replicate the problem, but everything loaded normally this time. My questions are: What the heck happened? Why? Is it dangerous? Why or why not? My machine is a Dell Inspiron 1501, 2 GB RAM, 120 GB hard drive, ATI integrated graphics, AMD 64 Anthlon X2 processor. I'm dual booting with Windows 7 as I learn Linux.
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May 10, 2015
It started many months ago on wheezy. Occationally I got horizontal stripes on my screen when I used my system for many hours switching from one application to an other. Now, after I installed Jessie this problem hasn't gone away, but got worse. Now I don't need to use my system for hours before I encounter this effect. Different parts of my screen get unreadable without any predictable pattern.
Friens of mine argued this might happen because of a broken RAM chip. I bought my Acer Extensa 5220 in 2008. I'm not sure if it's worth to search for new RAM fitting into this old notebook.
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Mar 5, 2010
My little girl played with my keyboard and mouse and moved my entire screen to upper section. I tried everything, and can't figure it out how to bring it down. I see black color trough half of my display. I can go blindly in upper section without being able to see, and from time to time click the shut down bottom. Do you any of you have idea how to fix it? Ubuntu rocks, I love it, very stable, solid rock.I twill never use anything else.
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Aug 9, 2010
I have a Windows XP Dell laptop that completely froze the other day. I cannot start it up, and cannot even access safe mode -- it just goes to black screen with underscore in the upper left corner.
So, I did some searching and saw a recommendation to create a Ubuntu Live CD to run and access the info on the hard drive, at least. I have most of it backed up, but not the drivers and I know that will be a pain to redo. So, I am mostly hoping at this point to recover a little info off the drive before reinstalling the OS. Of course, if I could just fix it, that would be better...
I get an error message when I try to access the hard drive through Ubuntu that says it is in hibernation mode and I need to start windows and shut it down properly before Ubuntu can mount the drive. Since I can't get into Windows, this is impossible. It also said something about being able to mount it read-only.
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Sep 4, 2011
After installing OpenSuse 11.3x86_64 specifically for the ATI radeon HD 4850 proprietary driver that was created with intended compatibility from ATI, I have intense screen tearing.
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Mar 15, 2010
Once I select Ubuntu 9.10 from Grub, it shows the logo, the logo disappears, a jet black screen shows with 2 horizontal white dashes appear at the top.
I recently uninstalled Firefox 3.6 pre using synaptic to go with the stable Firefox 3.6 installed with the PPA repository that was given in the Ubuntu wiki. It installed and ran fine but when I rebooted, ubuntu wouldn't start.
I went into recovery mode a few times, tried to fix any broken packages and when it said it was fixed, I tried rebooting and the same error occurred. I also tried to use dpkg-reconfigure for the xserver-xorg and then ran startx but x didn't load properly. Some more debugging and a few driver errors came up involving intel so I installed a package which fixed that.
Ran the dpkg-reconfigure again and ran startx. This time x loaded but it was a jet black screen and I had to hold ctrl + alt and hit a few F keys to get back to the prompt.
I understand this could be a xulrunner error so I tried reinstalling xulrunner-1.9.1. I also rolled back my repositories to get the Firefox 3.5 branch and I installed the original Firefox 3.5, ran firefox --version to make sure and I finally have that back installed.
I tried rebooting and running the OS normally, but again it failed at the same point. What exactly should I do next? Yes, I could reinstall but it's such a small problem with maybe 1 or 2 broken packages, is there anyway I can save my current ubuntu system (as I have made countless configuration changes months ago and I do not want to do it again)?
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Jan 5, 2010
I have a problem - after installation of Ubuntu 9.10 I discovered that I do not have virtual terminals on my computer. When I am trying to switch, to another virtual terminal with, say, Ctr-Alt-F2, I am getting a black screen with lonely cursor blinking in the upper left corner (no login prompt).my tty2.conf file is
Code:
# tty2 - getty
#
# This service maintains a getty on tty2 from the point the system is
# started until it is shut down again.
start on runlevel [23]
stop on runlevel [!23]
[Code]...
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Aug 16, 2010
I have Windows XP, Vista and Ubuntu (10.04) all installed on my single hard drive. I re-installed XP and then ran the Vista CD to repair the Vista bootloader so that I could boot into XP and Vista. I can't figure out how to boot into Ubuntu now. I tried using EasyBCD (I believe an older version, maybe 1.72) to add Ubuntu to the Vista bootloader but I didn't have any luck. Ubuntu is in the menu, but when I select it, it goes to a screen that has GRUB in the upper left corner and does not load Ubuntu.
If it helps, before I re-installed XP and re-installed the Vista bootloader I was using GRUB for XP, Vista and Ubuntu because Ubuntu was the last thing to get installed.Boot Info Script 0.55 dated February 15th, 2010 ============================= Boot InfoSummary:===============================> Windows is installed in the MBR of /dev/sdasda1: _________________________________________________________________________File system: ntfsBoot sector type: Windows Vista/7B
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May 6, 2010
I recently installed Kubuntu 10.04 on a Toshiba Satellite 5205 laptop (which is prone to overheating, if it helps - it was on a platform in the back for airflow, though), which worked great for about 4 days.
Recently, I picked it up (looking for a USB port) and rotated it around a little bit. However, after this, the screen was darkened (not fully), and I could move the mouse for about half a second, after which it jumps back to the upper left corner of the screen. Rebooting doesn't help.
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Feb 27, 2010
I've just installed F12 and during boot and at the desktop, the screen has an issue. I have a 9700 pro and the resolution gets detected properly (1440x900), but it's like the frequency is slightly off. I see the screen fine, but the screen looks almost as if it's underwater. My monitor accepts two freq at 1440x900, and the issue is at the 60Hz setting. If I change it to 75Hz, the screen is fine, but the corruption is still there during boot and at the login screen. Ubuntu 8.04, 9.10 and Mint 8 all work just fine at 60Hz. This is using the default driver for my ATI card. The corruption was there in anaconda when I was installing F12, but figured it would not be there after the install. Can I somehow force 75Hz to the kernel mode set? I'll try to get a video up on ..... soon as it can describe my problem perfectly without words.
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Nov 21, 2010
This is my third SLackware install. I installed 10,12, now 13. the Xorgsetup has changed I think, it does not display the screen to choose Horizontal and Vertical settings for the monitor. In addition, how can I set the Refresh rate?
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Apr 14, 2011
When it launches, sometimes a few mins later, the upper left of the screen (where gnome-terminal sits) freezes and becomes unresponsive. The cursor always stays as the 'text entry' cursor when in the region. If I alt-drag the window and close, nothing changes.It only goes away when I right click the area (even if I have moved/closed the terminal window) I have terminal options so I select 'close' then the screen resumes.
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Sep 12, 2010
I just installed openSUSE 11.3 on an old NEC Powermate. After rebooting the first time, the green startup screen with the chameleon is reduced to about one third of the screen surface and sticks to the upper left corner of the screen. Graphic card is an old NVidia Geforce FX4000, which I've been using before using NVidia's legacy drivers. I've been running CentOS, Slackware, Debian and Gentoo before, but right now,looking for a more "comfortable" distro that "just works" (or : almost just works). I don't mind having to do a little tweaking.According to /var/log/Xorg.0.log, the 'nouveau' driver is used for this card
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May 12, 2010
i thought i would give ubuntu 10.04 a try. So i downloaded the iso twice from two differant sources and burned to 2 diff dvd with diff burners and get the same problem. When i boot off of the disk i get the menu but whether i choose install are run live cd it just sits there for a sec are 2 then goes to black screen with flashing white bar in upper left hand corner and thats all it does. even tried my 9.10 disc which i know works. but it does the exact same. I have purchased a new video card since i last ran ubuntu and its the nvidia gtx 260 core 216. would that be whats causing my problems?
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Oct 6, 2010
my laptop is kinda broken and the right part of my 1440x900 display doesn't work anymore (all black). I think i have around 1200x900 left on the left side. Is there a way to tell X to only use those for displaying the desktop?Does this work with other application using "fullscreen" ?
schematic of the display:
OOOOOOXX
OOOOOOXX
[code]...
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Jul 30, 2010
I am having trouble with the grub boot menu. I have a dual boot system, Windows XP 32 bit and Ubuntu 10.04 64 bit. Windows was preexisting when I installed Ubuntu. The install went fine but when I restarted, the Grub menu gives the option of the Windows boot loader but when I tab to that and press enter the screen goes black and the curser just blinks in the upper left corner...no XP boot. The XP drive is there as I can mount it from Ubuntu side but when I try to boot into it it does not seem to be there. What have I done and what can be done so that I can boot into the XP side?
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Feb 19, 2010
I have two computers running Ubuntu Gnome with Firefox. Upgrades yesterday (18 February 2010) at about 1430 MDT hours (UTC 2130 hours) broke Firefox on both machines. Firefox is present in the menu, and in /usr/bin/firefox, but it will not launch, not even from the command line. I have tried "sudo apt-get remove firefox" followed by "sudo apt-get install firefox" but the problem persists. When attempting to launch firefox, it does give me a tiny brown spot at the upper-left side of the screen. This can be expanded by dragging so that it is a full screen, labeled "Firefox" but there is no content in the screen...only blank space.
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Jun 30, 2010
I have a problem with in the Gnome Desktop environment. Some parts of my system seem to think my screen is wider than it actually is. To the right if my screen, there is a part of my workspace which I can't see. I can move the mouse pointer there (although I cannot see it then) and I can also drag windows onto this area. If I do that, the window disappears from sight, however, it is visible in the little workspaces of the workspace-switcher-applet in the lower right corner. This applet does display the entire width of the workspace (which is too wide for my screen). If I maximize a window, it does not go onto the invisible part of the workspace.
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Nov 19, 2010
I installed Ubuntu 10.10 on my laptop Lenovo T410 and I found a strange behaviour: sometime a part of the screen (small rectangle) freezes and there is no way to unfreeze it. The only way is to shutdown. I cannot use it to work Other colleagues of mine that installed the same Ubuntu version on the same laptop do not have any problem.
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Apr 22, 2010
I have Evolution contact manager, works well but I cant seem to see the bottom of the screen, its cut off. Is there a way to change the screen size (particularly the Contact/Editor/Personal Information as I want to access the "notes" part of the application"
Opensuse Gnome 11.1 on Lenovo S10e Netbook!
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Jan 23, 2010
recently had to reinstall ubuntu 9.10....after all the updates & changes i made in synaptic and some restarts, i wanted to proceed in installing my nvidia drivers, so i stopped gdm and attempted to login as root, but it would not let me. it's strange because i created the root account password prior to this.
so, issuing the command to restart gdm brought me to the login window. after logging in, the screen remains in the login splash and a small terminal appears in the upper left corner. can't seem to get gnome started up.
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Mar 11, 2011
I've got an older graphics card I'm trying to use. It actually runs fine through the bios and even works when fedora is loading. But once fedora finishes loading half the screen turns into thousands of multicolored horizontal lines.
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