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• Computer wont start, just blinks on and off

  - by Ryan

  This is really strange. I had a comp that was working fine for over a year, then suddenly it started to shut off, it got so bad that I press the power button and in around 30 secs while booting windows it would shut off, then 20 secs... then 10 secs, then it refused to start all together. So I bought a new PSU (850w Thermaltake, the old one was 550w corsair) thinking that was the problem, I fitted the new PSU now and its the same thing, I press the power button and my fans start for a split second (they have led lights on them, so the lights come on) and then everything goes off again. I thought maybe it was my power button that was loose on my comp, luckily I had another chassis near by so I disconnected the powerSW from the old one and put ran the powerSW from the new chassis, press the power on the new chassis and same thing, it blinks for a split second and off again. Double checked connections from the PSU to the cpu power as well as board mobo power, its tight. It's pretty unlikely both the PSUs have the same exact problem so am lost... Suggestions?

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• 13.10 cannot login to Ubuntu default desktop environment - must use GNOME Flashback or Cinnamon

  - by Scott Stensland

  On boot at the password prompt - after I enter my password I get some error popup which disappears too fast to see then it reverts back to same password login Greeter screen. Same screen has icons where I can choose : Select desktop environment Cinnamon GNOME Flashback Ubuntu I really want to login to the normal ubuntu 13.10 Unity using above Ubuntu, however I can successfully login using either : Cinnamon or GNOME. Suggestions ? I have researched around and no help after removing file ~/.Xauthority Also I see this : cat .xsession-errors Script for cjkv started at run_im. Script for default started at run_im. init: at-spi2-registryd main process ended, respawning init: at-spi2-registryd main process ended, respawning init: at-spi2-registryd main process ended, respawning init: at-spi2-registryd main process ended, respawning init: at-spi2-registryd main process ended, respawning init: at-spi2-registryd main process ended, respawning init: at-spi2-registryd respawning too fast, stopped

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• How to start up rsyslog automatically?

  - by Enrique Videni

  Check current status of rsyslog $ chkconfig --list rsyslog rsyslog 0:off 1:off 2:off 3:off 4:off 5:off 6:off Start up rsyslog at some levels $ sudo chkconfig --level 35 rsyslog on It outputs these information: insserv: warning: script 'plymouth-stop' missing LSB tags and overrides insserv: Default-Start undefined, assuming empty start runlevel(s) for script `plymouth-stop' insserv: Default-Stop undefined, assuming empty stop runlevel(s) for script `plymouth-stop' The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'failsafe-x' missing LSB tags and overrides insserv: Default-Start undefined, assuming empty start runlevel(s) for script `failsafe-x' insserv: Default-Stop undefined, assuming empty stop runlevel(s) for script `failsafe-x' The script you are attempting to invoke has been converted to an Upstart job, but lsb-header is not supported for Upstart jobs. insserv: warning: script 'udevtrigger' missing LSB tags and overrides insserv: Default-Start undefined, assuming empty start runlevel(s) for script `udevtrigger' Check current status of rsyslog again $ chkconfig --list rsyslog rsyslog 0:off 1:off 2:off 3:off 4:off 5:off 6:off I am a novice. Please show me how to use rsyslog from beginning.

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• Orthographic Zooming with 0,0 at top/left

  - by Sean M.

  I'm trying to implement zooming on my 2D game. Since it's using orthographic projection, I thought it would be easy to implement zooming. After looking around the internet, I found a bunch of explanations and samples on how to do this if (0,0) is the center of the screen with the orthographic projection. The problem is, my ortho projection has (0,0) at the top-left (similar to XNA/Monogame, and a couple others). I could not find any examples about how to implement zooming to the center of the screen when the center is not (0,0). And help/links/code examples would be greatly appreciated.

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• Login timeout disable?

  - by Sk606

  How can I disable automatic timeout entries in the login screen? Allow me to explain. My typical experience goes something like this: I put my laptop to sleep, then wake it. When it wakes, it comes up with the login screen. I type in my password and it will usually reject it, with a message indicating the login timer has expired. I then enter my password a second time and it logs in. Not the end of the world, but annoying nonetheless. Any suggestions?

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• GameState management hierarchical FSM vs stack based FSM

  - by user8363

  I'm reading a bit on Finite State Machines to handle game states (or screens). I would like to build a rather decent FSM that can handle multiple screens. e.g. while the game is running I want to be able to pop-up an ingame menu and when that happens the main screen must stop updating (the game is paused) but must still be visible in the background. However when I open an inventory pop-up the main screen must be visible and continue updating etc. I'm a bit confused about the difference in implementation and functionality between hierarchical FSM's and FSM's that handle a stack of states instead. Are they basically the same? Or are there important differences?

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• Ati Radeon HD 5850 + two screens with different resolutions

  - by Nikolas

  How can I use these screens like I would use in Windows? When I turn off "copy" it gives me an error. I have tried community drivers and AMD drivers but both fail at this task. I use Ubuntu 12.04 with latest updates. It did not work in Ubuntu 11.10 either. I use DVI to connect my PC to my monitor and HDMi to my TV. It is a Sony Bravia, bought in 2008. I can't remember the model. Also, this same problem occurs when I connect to two Full HD monitors, both DVI. I cannot turn of the cloning of screens. How do I turn it off? Windows can do that.

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• Half-maximized windows misplaced after switching display

  - by Arild

  I have a laptop which I often plug into a larger screen with another display resolution. Thus I'm frequently changing the screen for the system to use. Also I've recently discovered the advantages of half-maximizing windows when working alternatingly in two or more applications. When changing screens, however the windows basically retain their absolute sizes and positions. So in my case the windows typically have their bottoms outside display, don't fill up half the display, etc. I have to half-maximize the windows again every time I switch screens. I'm thinking this should be subject of a bug report but I find it difficult to know where to file them. Any ideas on what package is responsible?

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• How to Access Boot Options 12.04 Live USB

  - by Ryan Kampmeier

  I'm attempting to install 12.04 on my computer but booting from my USB drive results in a blank screen. This has happened since 10.04 and has always been fixed by putting nomodeset in the boot command, but now I can't access the boot options with F6 for some reason. How can I access the boot options? I booted into the live image on a different computer and it worked fine. I'm sure it's because of my Nvidia graphics. When I boot into the live image it shows a small gray box in the lower left corner of the screen and that's it. I can't edit the boot options or do anything else. Thanks in advance.

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• Oversizing images to produce better looking pages?

  - by Joannes Vermorel

  In the past, improper image resizing used to be a big no-no of web design (not mentioning improper compression format). Hence, for years I have been sticking to the policy where images (PNG or JPG) are resized on the server to match the resolution pixel-wise they will have with the rendered page. Now, recently, I hastily designed a HTML draft with oversized images, using inline CSS style such as width:123px and height:123px to resize the images. To my (slight) surprise, the page turned out to look much better that way. Indeed, with better screen resolution, some people (like me), tend to browse with some level of zoom (aka 125% or even 150% zoom), otherwise fonts are just too small on-screen. Then, if the image is strictly sized, the enlarged image appears blurry (pixel interpolation effect), but if the image is oversized the results is much better. Obviously, oversizing images is not an acceptable pattern if your website is intended for mobile browsing, but is there case where it would be considered as acceptable? Especially if the extra page weight is small anyway.

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• How to make xlock use the first key I hit as a part of my password

  - by alesplin

  I just switched from Arch Linux to Ubuntu 10.10. I'm running the Fluxbox window manager, and I use xlockmore to lock my screen with the following key shortcut: 192 :Exec xlock-mode marquee +usefirst -icongeometry 240x240 -message "back in a minute..." The problem I'm having is that xlock is definitely not using my first key as part of my password. Instead, it uses some randomized fade pattern to fade to the password screen. I find this highly annoying, as when I get back to my desk and start entering my password it doesn't register password characters until the fade pattern is complete. I've also tried the following modifications with no difference: 192 :Exec xlock -mode marquee -usefirst -icongeometry 240x240 -message "back in a minute..." 192 :Exec xlock -mode marquee -icongeometry 240x240 -message "back in a minute..." The first example worked flawlessly on Arch. Does Ubuntu have some sort of system default that you can't override on the command-line?

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• Ubuntu install and boot failure 11.10

  - by Robert Moody

  I installed Ubuntu 11.10 on my machine alongside Vista, and upgraded to 12.4. I decided I liked 11.10 better, so I tried to install that again as my only OS, except I increased the size of the swap file partition to 2 gigs. It boots up fine off the CD, but when I install, it gives me a non-specific error, and returns me to the desktop. When attempting to boot off the hard drive, I get a black screen with a blinking underscore that starts in the corner, drops a couple spaces, and stays there. I managed to install 9.04, and am currently using that. The computer is a little outdated, but was fired up for the very first time last week, so the hard drive is in new condition and the CD rom drive is fine too. Running a 3GHzX2 processor. I ran a memory test, which came back fine, and being new to the linux environment, I've been scratching my head for the last couple days. How can I fix this?

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• How to increase the amount of steps of brightness adjustment-key

  - by Koen

  The screen of my laptop (Dell Vostro 3460) supports 16 levels of brightness: Not only according to the manufacturer, but also as is clear from two OSs: Both Windows 7 and Ubuntu (dual-booted) support all levels. On Windows 7, the hotkeys for brightness adjustment support all levels. In ubuntu it is apparent when going on the brightness slidebar (see picture below) from left to right; I can count 16 different levels of brightness when doing so. When using the hotkeys (Fn+F4 and Fn+F4), however, only 5 levels are supported. How can I adjust these levels and make them in line with what my screen supports?

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• The best DPI value to let you work nicely [closed]

  - by user827992

  I'm probably about to buy a laptop, unfortunely they all have glare screen, even the "premium" device, the actual offer just differentiate on 2-3 variations about DPI and display resolution; considering that i would like a 13" laptop, what can be the best resolution? I was looking for a 4:3 but this days they are all cheap-made so i do not think that something expensive to produce like a 4:3 is on the market. on the 13" laptops i see that basically there are available 3 kinds of displays: 1366x768 ( a 16:9 ratio ) 1400x900 ( a 16:10 ratio ) 1600x900 ( a 16:9 ratio ) Honestly i'm asking for an advice because i do not like this things, not even one of them, but this is the market today, i was looking for some old-style laptop with good plastics, a 4:3 ratio or 5:4 or something like that and a true matte finish with an higher resolution compared to what you could find in the old laptops. Since programming involves the presence of many text character on the screen it's a good thing to choose the one with the highest DPI/PPI ?

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• Xfce session will not login from login prompt. Why?

  - by hydroparadise

  Well, not sure how I did it, but for some reason I am unable to get past the login screen on Xfce. What's odd is that I had set the machine up (from install) to login automatically. Then when I finish rebooting after installing sudo apt-get install openssh-server and sudo apt-get install vnc4server all the sudden I am getting prompted for my password. I proceed to type my password (successfully might I add) to login, the screen goes black for a second, then brings me right back to the same password prompt. I am able ssh in(now), but I get no love from workstation login. Maybe vnc4server is the culprit? What did I do? And can I fix it? EDIT: The guest account, however will let me login no problem. What gives? I have a sneaking feeling that this could be permission issue.

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• Why is my Workspace switcher view skewed

  - by Lee

  I have been using Workspace switcher in Ubuntu just fine but recently have encountered this problem. The windows in the switcher don't fill the screen. I must have pressed some combination of buttons somehow but can't find any information anywhere in regards to resizing them. As you can see in the screen shot it looks like a perspective view or something. http://i1115.photobucket.com/albums/k553/lmt337/Screenshotfrom2012-07-04103519.png I should also add I have a dual monitor setup and nvidia graphics. The switcher still works but the fact the screens dont fit my actual screens is driving me nuts. Thanks in advance for any help.

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• Logout or shutdown shows terminal

  - by N.N.

  When I logout or shutdown the terminal (the one I reach with Ctrl Alt + F7) is sometimes shown before the login screen appears or before the computer is shut off. Is there a way to stop this behavior? More explicitly. If I logout the terminal is sometimes shown for a second before the login screen appears. Also, sometimes when I shutdown (from within Unity or Gnome) the terminal is shown, sometimes for the whole shutdown process or just for a second or two. I've had this problem throughout 10.04, 10.10 and 11.04 and I've always used the standard Ubuntu variant. I've also noticed this happening on a fresh install of Natty on a friends netbook, so it's not local to my computers.

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• How can I programmatically block user input for a given time?

  - by black_puppydog

  As a person working in computer science working offline to avoid facebook and thelike is not always (meaning hardly ever) possible for me since I mostly have to be online to work. I have tried leechblock and similar things but the problem becomes that at some point I start making systems for myself to hack, which is kind of pointless if oyu have root. I would very much like to try out the method described here. (Short version: reboot your PC every time finish a task or get bored with it) Unlike for the author of this blog my work is mainly done not in screen sessions but in IDEs ans other not-so-fast-to-start-up stuff, meaning a full reboot including loading all my programs will take its time. So, the question is: How can I block all user input and preferrably blank the screen for a given amount of time? The idea would then be to have a keyboard shortcut to activate the script/program (which would probably also have to have root i guess?)

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• Ubuntu dual boot OS crashed my computer. Now my computer won't boot. Please Help

  - by uBuntu noob

  I've just tried to install ubuntu 12.04 dual boot OS with Windows 7 and it finished installing in ubuntu. However, it said that the bootloader "grub.." failed to install. The same exact problem here I receive the error 'grub-install /dev/sda failed' while attempting to install Ubuntu as the computer's only OS. . When I tried to restart my computer, it went to the hp screen since my computer is a dv6 hp laptop and then it goes into this black screen with no words or any buttons will work. There is just a blinking underscore that seems like it'll allow me to type but makes error sounds when I type. Is this because I possibly partitioned my memory incorrectly? Any help would be greatly appreciated. I'm very desperate. ANY HELP would be great. Thanks.

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• Ubuntu freezing after boot

  - by jbm1991

  I have ubuntu 12.04 LTS dual booting with windows 7 on my laptop without any problems and felt like doing the same on my desktop. However now that I have installed Ubuntu on the desktop through Wubi, if I boot into ubuntu the log in screen is as far as I get. I see my username and the password box but everything is completely unresponsive. I can move the mouse around the screen fine I just can't click on anything and the keyboard doesn't seem to work at all as I've tried a few shortcuts and there's no response at all. I have done a some searches and I think it's a driver issue but I don't know how to fix them as I'm pretty new to ubuntu and cannot log in at all. Desktop specs if needed: Intel core i7 2700k, NVidia GTX 580, 8GB RAM. Thanks in advance

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• How can I increase resolution when impossible to set up nvidia driver?

  - by Asimov4

  I was stuck at 1024x758 before creating an /etc/X11/xorg.conf file as follows which works well to allow me to have a resolution of 1920x1200 with the vesa driver. Section "Device" Identifier "Configured Video Device" Driver "vesa" EndSection Section "Monitor" Identifier "Configured Monitor" HorizSync 24.0 - 83.0 VertRefresh 50.0 - 75.0 EndSection Section "Screen" Identifier "Default Screen" Monitor "Configured Monitor" Device "Configured Video Device" SubSection "Display" Viewport 0 0 Depth 24 Modes "1920x1200" EndSubSection EndSection But now my display is kind of slow. I have an NVIDIA GeForce 8600GT but really cannot find how to set up the driver to work. Are there any alternatives to VESA that would work faster?

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• Full brightness and keyboard backligh at boot

  - by joelalmeidaptg

  I own an Asus N56VZ, and each time I start Ubuntu (13.10 and prior versions) my screen brightness and keyboard backlights reset their values to the max. Ubuntu doesn't save my settings on reboot. I was wondering if someone could help me with this? It is horrible when, at night, I turn on my computer - it is like looking directly to the sun, and it hurts my eyes. I tried googling and none of the pages I found actually helped. I think my issue might be grub-related. I have a dual-boot with Windows 8.1, so before I start my computer I see grub to choose my operating system. My screen starts at full brightness as soon as I reach grub. Maybe he is making the OS forget about my last values, overriding it with its? Does someone knows how to solve this? Thanks in advance :) PS: I'm using bumblebee with Nvidia driver 304, but this issue existed before I installed it.

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• How to install a NVIDIA driver for 11.10

  - by Hurumhei

  I have a Thinkpad T61p with Quadro FX570M. I just installed the Ubuntu 11.10. I have tried to download the driver LINUX DISPLAY DRIVER - X86 version 295.20 from NVIDIA, but I do not manage to install it. If I open System Screens, there is an unknovn screen driver. My installation works fine except, fails on resume with a black and white pattern all over the screen and I have difficulties detecting an external monitor. Please, if you have any clue - help me out.

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• Old CRT screen's high resolution doesn't work anymore on windows 7

  - by Mixxiphoid

  One year ago I decided to switch from Windows XP to Windows 7. I had a 17" CRT monitor with a screen resolution of 1600x1200 which worked fine on Windows XP. While installing Windows 7 everything went well until Windows 7 was going to install the video card its driver. Windows 7 puts the screen to its recommended resolution and my screen became black. I waited a few minutes to be sure the installation was finished. I turned off the computer by hand and restarted the computer on a resolution of 800x640. When windows 7 was done installing I went to screen resolutions and the resolution of 1600x1200 was on the top of the list with '(recommended)' next to it. I tried putting it on 1600x1200 but again my screen went black. I installed all windows 7 updates including the video card driver from the NVidia site (NOT from Windows 7). I tried about everything to make it work on 1600x1200 but with no succes. The highest resolution I got with the crt monitor was 1280x1024. I had a TFT screen which had 1280x1024 as max resolution and had better colors, so I used that one till today. My video card is 9600GT and my power supply is beyond sufficient. I even tried to install the driver I had on XP to see if it worked, but no results. I tried classic mode on windows 7, changed the dpi, the frequentie and the monitor settings, but nothing worked. I really like a vertical resolution of 1200, but it seems today I'm bound to all those standard monitors with a resolution of 1980x1024... Can anybody explain to me what the cause is that it worked on Windows XP but not on Windows 7? And maybe a solution to the problem (I actually gave up on getting it fixed...) Thanks a lot in advance. SOLUTION I downloaded the according monitor driver and installed it. Next I rebooted my computer on low resolution (800x640) and connected the CRT monitor. When Windows 7 booted successfully I went to computer management and 'update the driver' of my monitor. I manually selected 'Generic PnP monitor' and made that one active. I want to advanced settings at 'Screen resolution' and selected the mode '1600x1200 (32-bit) 80 Hertz (95 Hertz did not work). Now I had my resolution on 1600x1200. I repeated the earlier step to select the original monitor again instead of the Generic monitor. Quite a way to solve this problem, but it worked! Thanks a lot you all.

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• Turn Off Google Chrome Annoying Link Hover

  - by Volomike

  I like Google Chrome a lot, but there are two problems I have with it. The Address Bar search history feature that I want to turn off, and the feature where I hover over a hyperlink and in the bottom lefthand corner it shows a light blue hover tooltip about where that link goes. I really don't care where a given link goes and wish I could turn that feature off, even if I have to install a Google Chrome Extension. So, for these two reasons, I will not install Google Chrome as my primary browser and will remain with Firefox. So, is there a fix to turn the annoying link hover tooltip feature off?

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