Ubuntu :: Not Starting - Monitor Goes Blank Although My Processor Is Running
Jul 18, 2010
Recently the power went when i was using ubuntu and my system shut down since the ups took too long to supply power. So i started my system and choose to boot linux, but it said display drivers not detected, linux running in low graphic mode, and it said 1. run windows in low graphic mode for now...2. reset to previous graphic mode- i chose this and it restarted, since then the ubuntu loading page appears and then my monitor goes blank although my processor is running.....why is this happening?.....i have a ati 5770 graphic card through which it should display.
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Apr 5, 2011
I can't figure out why but my processor is running at 100% on all four cores, and the fan is running at max speed. All I did was double click an a.out file created by g++, and it is running at full speed now.
[IMG]file:///tmp/moz-screenshot.png[/IMG][IMG]file:///tmp/moz-screenshot-1.png[/IMG]
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Apr 8, 2010
Is there a program already in Ubuntu or that i can download to monitor my processor temperature on the desk top?
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Dec 20, 2009
Basically system monitor and the "top" command show 2 cpu cores when I only have 1 (a 3 Ghz P4 on my work computer).
I'm not sure if the two are related but I frequently get 100% CPU usage when running a few programs together (Kile, Firefox, Chrome and okular for example) at which point even the movement of the mouse cursor slows down.
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Apr 23, 2010
My ubuntu isn't starting up today. I can't remember anything unusual happening last night, not even a standard system update.
It presents me with the Grub loader, screen goes blank, and that's as much as I get. I have gone into a recovery mode through the grub loader, and that gives me a bit more info, but I don't know what to do with the information it is giving me.
It says: Gave up waiting for root device. common problems (etc) ALERT! /dev/disk/by-uuid/<long name> does not exist. Dropping to a shell.
It is right - the /dev/disk/.... does not exist. A different file with an equally long filename does exist
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Oct 19, 2010
Im a freshman ubuntu user and i have been enjoying it till this morning. I installed filezilla ftp client software this morning and it worked. I later restarted my laptop and the boot process was normal until it was to show the log in screen. At that point, the screen remained blank. its been 3 hours and 10 restarts later and im still here...
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Mar 30, 2010
Running Slow and Pegging Processor When Using Mozilla and Kdenlive
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Mar 2, 2010
The situation is that I have an MPI-parallel fortran program. I run it and it's distributed on N processors, and each of these processes must call an external program.
This external program is also an MPI program, however I want to run it in serial, on the processor that is calling it, as if it were part of the fortran program. The fortran program waits until the external program has completed, and then continues.
The problem is that this external program seems to run on any processor, and not necessarily the (now idle) processor that called it.
how I can call the program and ensure it runs only on this processor?
Extra information that might be helpful:
If I simply run the external program from the command line (ie, type "/path/myprogram.ex <enter>"), it runs fine. If I run it within the fortran program by calling it via
CALL SYSTEM("/path/myprogram.ex")
it doesn't run at all (doesn't even start) and everything crashes. I don't know why this is.
If I call it using mpiexec:
CALL SYSTEM("mpiexec -n 1 /path/myprogram.ex")
then it does work, but I get the problem that it can go on any node.
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Jan 24, 2011
I have 8 cores system, but I only want to use 4 cores of it. Are there any commands to show which cores are running tasks?
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Dec 20, 2010
identifying the number of cores each processor is running.
I have checked /proc/cpuinfo but i dont find any core details inside it and I can find only no of processor and its speed.
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Mar 16, 2011
Unix command that allows to know which process is running on processor core?
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Mar 19, 2010
I had xp sp3 installed on my system celeron 2.0 ghz.and two hard disks.I had installed succesfully ubuntu on other disk. after restart I can see dual boot menu. one xp professionl and other ubuntu. I clicked on the ubuntu but after logging only a cursur blinks on a blank screen. I can see the choice menu "normal","verbose" etc but when I started in normal mode, a blank screen appears and a cursor blinks.
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Oct 19, 2010
Slack 13.0 X sometimes fails to start after boot about 50% of the time. linux says "starting X11 session" then I get a blank screen with a flashing cursor and absolutely nothing else. I can <ctrl>-<alt>-<F7> and get a text prompt, log in, and startx from a command prompt. After that, I can reboot once or twice and still get a graphic login, but will soon revert to the dumped condition. I have reinstalled X and KDE twice now as well as deleting my .kde folder. This condition started when I inadvertently ran out of disk space on my /home drive. Since then I have migrated /home to a larger drive and watch it's disk space very carefully.
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Mar 19, 2010
We are running IPmonitor to monitor the disk usage on our Linux servers. It does not seem to coincide with what is reported when running df -h. For example on a Red Hat 5.3 server - our IPmonitor shows that 85% is used on the /usr partition, however when I do a df -h on the server it shows that 91% is used. Why there would be a discrepancy? IPmonitor uses SNMP.
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Oct 14, 2009
I have just installed Fedora11 on my machine - the installation failed to start the x server so I had to install with the textbased installer. When the installation completes, I boot up and first I update Fedora with "yum update". Then I install a nvidia driver with "yum install kmod-nvidia". Then I run nvidia-xconfig to make a config file. But when I try to run "X", I just get a blank screen. I can run system-config-display fine, and setup my resolution etc. The log doesnt seem to give me any errors.I have two Geforce Fx3500 card in the machine.
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Oct 11, 2010
I want to install Suse 11.3 on a Proliant server. I thought not to take the obvious Windows CD's (little sorrow now) and try Linux. I used an USB Live CD to start. I tried all the startup options like apci=off and so on. Also tried lower resolutions and VESA. Still no luck. After running and starting (seeing in ALT-F4 the Kernel loading), all ALT screens get a blank black screen. Only option is to restart, while then SUSE is displaying it is going down.
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Oct 14, 2009
I have just installed Fedora11 on my machine - the installation failed to start the x server so I had to install with the textbased installer. When the installation completes, I boot up and first I update Fedora with "yum update". Then I install a nvidia driver with "yum install kmod-nvidia". Then I run nvidia-xconfig to make a config file. But when I try to run "X", I just get a blank screen. I can run system-config-display fine, and setup my resolution etc. The log doesnt seem to give me any errors. I have two nvidia Fx3500 card in the machine. I have tried the 173, 185 and 190 driver - same thing.
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Feb 23, 2010
I'm a newbie so apologies if there is a trivial answer to this.
I (maybe somewhat rashly) tried to connect my tv to my laptop (Dell Latitude D400) running Ubuntu 9.10.
I plugged in the cable, went to the System>Display menu, where it had detected the model and make of tv (Samsung 19" LCD) (I think the resolution was 1650 x 1050 or similar). I clicked the box to activate the second monitor with the "Virtual resolution" adjusted. It told me to log out then log back in.
I accordingly logged out but then couldn't log back in. It had evidently changed the resolution not only on the 2nd monitor but also on the laptop monitor. A box was visible on screen but completely illegible/unclear since the laptop monitor couldn't display that resolution.
After a few restarts and button pushes it is now restarting at a terminal (I enter my username/password at a command prompt on an otherwise blank screen rather than the graphical interface loading up).
Question: are there any commands that could change the resolution back to its original settings then restart the Ubuntu graphic interface? Some thing similar to the "load with last known good configuration settings" option in Windows maybe.
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Jan 17, 2009
I have an old-address-list file which is having around 1500 entries. I need to convert this addresses in to a specific format.
The old-address-list file>
# cat old-address-list-file
dn: CN=Muhammad Hadhi K.M,OU=IT Dept,OU=Example Company H.O,DC=example,DC=com
cn: Muhammad Hadhi K.M
[code]....
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Feb 16, 2010
I just replaced my PSU and now my computer is not booting up. To make sure that my new psu is not causing the problem, I put my old one back in but it still doesn't boot up. My system powers on, motherboard led glows, the processor starts running and so does the graphics card. The monitor stays blank though. Nothing shows up on the monitor. Just a blank screen with the monitor led blinking. What could be the problem ? It was working fine before I replaced my psu.
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Jul 31, 2011
Natty install -- ATI 9800 is the video board.
I installed Natty on it with the machine hooked up to a Samsung LCD with a 1680x1050 resolution over DVI. No problems at all. I want the box to pretty much output MP3s and web video, so I'm not needing much. When I take the box and hook it via DVI to my LCD, I get a blank screen on boot up. I try sticking the natty CD in it, and I get a blank screen trying to live boot it too. The LCD doesn't do 1680x1050, so I brought it back to my Samsung and set the default resolution to something nice and safe: 1280x1024. Still the same behavior. When I take splash mode off, I see a "load fallback graphics devices fail" error as it is booting up. Hard for me to think the driver is the fault here when it works on my over LCD just fine.
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Jun 21, 2010
I have a new ubuntu 10.04 install, it is the third that I have done recently. On this particular install (unlike the others) the screen goes unexpectedly blank at seeming random intervals and any motion restores the screen. It is acting like a screen saver with the blank screen option set. My screensaver preferences are set to use a screen saver 'for a 7-minute idle period. The lock screen option is off. For AC power management never is chosen for "put computer to sleep" and 30 minutes is chosen for the "put display to sleep" option.
This is a compaq presario desktop.
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Jan 29, 2011
I'm using Ubuntu 10.10 server edition on AMD 64-bit machine. When I try to open system monitor(system->administration->system monitor) it's not starting. Then i use console to open system monitor using command #gnome-system-monitor then it gave me the following error on the console.** (gnome-system-monitor:19279): WARNING **: SELinux was found but is not enabled.
*** glibc detected *** gnome-system-monitor: malloc(): memory corruption: 0x0000000000881d80 ***
======= Backtrace: =========
/lib/libc.so.6(+0x774b6)[0x7f1ec27054b6]
[code]....
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Feb 5, 2011
I just installed ubuntu 10.10 did a clean install, formatting the previous ones. Install completed successfully, rebooted, entered in GRUB, chose linux, linux starts the my screen goes black, there is no signal coming to my monitor, linux runs fine though i think because I hear the ubuntu login drum. I press ctrl+alt+F1, but can't get to console either, the screen is looking for input signal. Should note the I have a Palit NVdia 9600GT gpu because I saw that people with NVdia card sometimes have similar problems.
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Aug 19, 2010
I changed may graphic card, earlier I used NVIDIA FX5500 with nvidia driver, now I was trying to use ATI Radeon 7500, but there are problems with graphic configuration. At first attempt server started but after I changed a screen resolution the monitor went blank. I restarted a computer but after the X server started immediately the monitor wnet blank. I found that for completely for me unknown reasons Xorg was trying to use an NVIDIA glx module with radeon driver. I removed this nvidia driver, I expected ubuntu would be able automatically to set up a proper configuration, but instead of ubuntu complained about a missing driver. I also tried manually to set up some basic config using Xorg -configure but after that the Xorg server was stuck.
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May 17, 2010
After the login screen, my laptop screen is active but the external LCD monitor hooked to my laptop goes blank which was active to that point.
Here are quite a few details which might help you in diagnosing the problem
alt + clt + f1 takes the monitor screen to command line but alt + clt + f7 fails to bring it back to GUI. The monitor just freezes!!
Contents /etc/X11/xorg.conf
# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
[Code].....
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May 26, 2011
Previous Fedora releases allowed me to connect to my external monitor via an HDMI-DVI cable to use as my main monitor from my laptop. However, after I did a fresh install of Fedora 15, I have this problem that when I login to gnome 3, both laptop screen and external monitor go blank. I cannot ctrl-alt-f2 to go to terminal. I end up having to ssh from another machine and reboot. Each time, the reboot doesn't even work since I have to go and kill Xorg before it starts to reboot.plymouth and gdm seem to be fine and show up the external monitor. It is only when I login to gnome3 that I get the blank screens.
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Feb 1, 2010
I have an Acer Aspire 5100 with AMD turion 64X2 and an ATI radion XPRESS 1100 graphics card.I recently installed suse 11.2 (clean install) without much trouble but I've always had some intermittent trouble were the screen would just go blank after boot up (before login screen) this did not happen always and never happened in safe mode or on XP on the same laptop, ergo software fail.Anyway, this morning I have a laptop with absolutely nothing on the screen from start to end. I also get a loud beep followed by two shorter beeps!If I let the boot up progress I can blindly find myself in normal Suse or in safemode or even in XP all without anything on screen
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Jan 5, 2010
i have installed ubuntu in my laptop.since i have AMD processor fedora doesnt support AMD processor..the recent version fedora 12 supprots AMD processor.i am doing my final project in ns2 hence it should support tht too!!! Which is the best choice to override ubuntu grub fedora 12 or redhat linux.
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Jul 18, 2011
I run LXDE with Openbox as WM on Fedora 15. When I watch videos with Totem or VLC, the monitor doesn't register any activity, and goes into power saving mode (goes blank) after a certain amount of time (about 10-15 mins). How can I prevent this from happening? (I just switched over to Fedora from Arch, using GDM and Openbox. I didn't have this problem on that installation, so it's probably not hardware related.)
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