Fedora :: Display Flashes On And Off Repeatedly Every Few Minutes?
Jul 23, 2009
I'm running a Latitude E4300 with the Intel 4500HD integrated graphics. Lately, the display has started to flash on and off several times an hour. Usually all I have to do is move the mouse or hit a key, and the display comes back (the back light is on when this happens).
Once and awhile, my monitor goes into standby when this happens, but if I turn the LCD (a Dell 2007FP) off and back on, the display is back. This happens when using the internal LCD at 1280x800 or my external monitor hooked up via E-Dock.
I've tried a couple different monitors, and they all work fine. I have another hard drive for this machine that I have Windows 7 loaded on, and it works for hours and hours without exhibiting any video related errors.
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Feb 7, 2011
I have CentOS 5.5 installed and I'm having the problem of no display, though everything is working perfectly besides that. When I don't use the mouse for a while, the monitor flashes green, but then when I do finally move the mouse, the monitor turns solid green, just that no display is seen. How the situation came about is as follows. The display was working perfectly. I was trying to fix a friend's machine, so I unplugged the VGA cable from the back of the monitor (so that I can hook up the monitor to my friend's machine). Afterwards, when I re-plugged in the VGA cable from my linux machine to the monitor, I had no display.
Also, note that the machine is working perfectly. When I reboot, it boots up completely (I don't need to login as I turned this off) so I can ssh into it from another machine on my network. Another interesting point is that this linux machine is currently using a cheap graphics card and this is what the VGA cable is attached to on the back of the tower. However, the motherboard does have built-in graphics card, and I also tried hooking up the VGA cable to that... still no display. I should also mention that I tried testing the monitor by hooking it up to a laptop as an external monitor and it worked nicely. So the monitor is, in fact, working.
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Mar 28, 2011
I have ubuntu 10.04 on my laptop and when I`m doing my works on it for example surfing the net or other things the display starts raining.I mean the colors on display start going up and down and It hurts my eyes.I installed ubuntu 10.10 but the problem didnt solve.
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Dec 18, 2015
I'm having an issue with my display. Every few minutes or so it dims and a 4 note chord is played.
I have isolated it to: "new-host-5org.kde.powerdevil.backlighthelperQDBusConnection: system D-Bus connection created before QCoreApplication. Application may misbehave".
And it most certainly is misbehaving. I'm running Jessie 8.2 with the KDE desktop on a HP Elitebook 8730w with NVIDIA Quadro G94GLM graphics.
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Apr 6, 2010
I'm running a fullscreen display app which shows a 3D scene in OpenGL. The app runs continiously throughout the day unattended.
Here's the sequence of events in how it's loaded:
1) The computer is turned on, and boots into F11 (x86_64)
2) A non-privileged user is automatically logged on
3) The gnome startup applications list contains an entry for a loading script
4) The loading script waits for the network interface (eth0) to ccome up, then starts the display program
This all works just fine, except that about 30 minutes after the computer is turned on and the app starts running, the screen blanks out. Attaching a mouse to the system and moving it around a bit brings the screen back to life. Likewise, SSHing into the machine and killing / restarting the application works as well. Once either of these fixes has been performed, it runs flawlessly for the rest of the day.
I have turned off the screen saver, and set the power settings for monitor shutdown to 'never'.
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Jun 1, 2011
Fedora-15-i386-DVD.iso file, sha256sum is correct. Burning by k3b on a fedora14 system fails again and again at 98.4% of the burning. I downloaded again to another partition and the same happens again. The k3b-debug output:
[Code]...
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Jan 21, 2009
Recent FC10 totally clean install. Fully updated using yum.
Using gui /system/administration/network I set up my DNS to the two IP addresses I've been given.
$service network restart
cat /etc/resolv.conf and the secondary DNS has changed to the IP address of my
gateway (router, at 192.168.2.x)
I.e. something is overwriting resolv.conf
Prior to this install, I'd been successfully using fixed IP on the 192.168.2.x range quite happily. Now it only works on DHCP and DNS seems to take an age.
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Nov 27, 2009
I'm trying to upgrade to F11, and I'm having trouble. I attempted to download the x86_64 DVD .iso image by bit torrent, and it seemed okay, but when I started the installation the DVD failed the initial integrity check. I tried a second time with another DVD and got the same result.I tried running md5sum on the .iso image, but the response did not match what was in the CHECKSUM file that came with the .iso image -- should it? I tried downloading a live DVD image for comparison and found the same result - the response to the md5sum command did not match what was listed in the CHECKSUM file.Should these checksums match, or am I comparing apples and oranges? I thought the bit torrent client was supposed to check the files, but I'm not sure about that.
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Sep 29, 2009
I upgraded from fedora 6 to fc10 using a net-inst iso. Everything went great however when I rebooted gnome wouldn't start up and there were other error messages, however thats not my current question. I figured id login as root, I put my pw in and the screen briefly flashes and then back to login prompt. The flash is a message saying something about no shell. Same occurs when trying to logon to my main user account. I can boot to single user and see that all my partitions are there and the data is there. My password file has the shell at the end of the entries.
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Mar 3, 2010
I was running Fedora 10 I belive- no issues - did an update to 12 via DVD and now the screen continuously flashes... I see posts about Nvidia issues - but this laptop uses ATI based on HP's website.
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Jun 26, 2011
I don't really have any Linux experience. But I wanted to try it out. Now I'm afraid I did not set this up properly. Grub gives me 3 options:
Fedora (2.6.38.8-32.fc15.x86_64)
Fedora (2.6.38.8-26.rc1.fc15.x86_64)
Other
When I select <Other> to boot into windows... it starts to try to boot... but then flashes a quick blue screen & restarts. I tried to boot into Window's normal mode, safe mode, and command line... all just restart fdisk -l gives the following:
[Code]....
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Mar 15, 2011
I'm using mencoder to capture audio from a Encore ENLTV-FM3 video capture device. I have recently noticed that, since one week ago, when the machine was forcibly restarted due to a power outage, all recordings are slightly pitched, they play back slower than they should.
I narrowed down the problem to the following command line:
$ time mencoder -really-quiet -tv driver=v4l2:device=/dev/video1:chanlist=us-cable:audiorate=32000:alsa:adevice=hw.1:input=0:amode=1:normid=11 -endpos 00:10:00 -ovc copy -oac pcm -of rawaudio -o test-32000.wav tv://69
real 9m54.886s
user 0m5.536s
sys 0m1.740s
$ ls -l test-32000.wav
-rw-r--r--@ 1 martin martin 76800000 Mar 15 17:20 test-32000.wav
Somehow, mencode managed to gather precisely 10 minutes worth of raw audio in 9m 55s. That's not physically possible, unless the capture device's A/D converters are "overclocked". I can't think of any other explanation besides hardware failure. Can that be? Could it be that something got burnt during the power outage and now the capture device's internal clock went nuts?
Since the machine's restart, I've also noticed dmesg is flooded with entries like this:
CE: hpet increased min_delta_ns to XXX nsec
Which seem to indicate that the computer's high precision event timer is somehow out of sync. Does this have to do with the audio issue? Can it be that the audio converter's sample rate is linked to the HPET? I'm totally lost here. Has anyone bumped into something similar?
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Aug 3, 2010
I just installed Fedora 13 on my HP HDX 16 laptop (and accidentally corrupted my vista partition by resizing it so I'm pretty much stuck now. ^_^)
The light for the wifi toggle button constantly flashes between blue and orange (normally meaning the wifi card is on or off). Does anybody know how I can fix this?
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Jun 29, 2010
I did not have any /etc/X11/xorg.conf, so I read on these forums that system-config-display would create one for me. I ran system-config-display and it created an xorg.conf. But now my display is all messed up!! So, I deleted the xorg.conf and nothing changed. Why on earth would the display still be messed up if I deleted the file that was causing it?? Does system-config-display change somethign else?
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Dec 24, 2009
I am using fedora 11. I have disable power management and screensaver.
[Code]....
However, when I reboot my computer, it will still come to a black screen after 10 minutes. When I move my mouse once, it never sleep again.
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Mar 3, 2010
X crashes exactly 10 minutes after log on, and I am returned to log in screen. I am running: Kernel Linux 2.6.30.10-105.2.23.fc11.i586. Gnome 2.26.3. on a Dell Laptop.
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Dec 1, 2010
I have installed Fedora 14 Security Spin, and want to display all disks & partitions available in a GUI display. How can I achieve that?
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Aug 21, 2009
I have f11 installed on as a vm on virtualbox 3.0.4. It takes forever to boot. I modified /etc/udev/udev.conf and changed udev_log="info" to udev_log="debug" and rebooted the system. When the progress bars came up I hit Esc and watched the boot process. Udev runs through approximately 7-800 items before it ever tries to load anything else. Is there a way that I can change this? I have been through the forums and can't find anything similar to this. I thought maybe that it was the "Floppy" issue so I went ahead and blacklisted the floppy drive (as this is a vm I don't have access to the BIOS) anyway.
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Jan 5, 2010
I just installed fedora 12 on my new harddrive, and it's booting up extremely slow (but once I'm logged into the system, it all seems to run fine). Right now my set-up looks like this: 1TB HD: new install of fedora 12 300GB HD: Windows xp & my previous install of fedora 12
My previous installation of fedora 12 never booted this slow until after I installed Fedora 12 on my new HD. It seems to freeze right before the log in screen, and after I log in, both installations take about a minute to get to a usable desktop. I pressed the Esc key during startup to see if anything was wrong, and it didn't hang up on anything. However, as it was loading the login screen (where it first begins to get sluggish), I was kicked out of the terminal view and forced to wait in the gui for log in.
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Mar 14, 2010
Screen is blanking out after x minutes. Don't know how to set it to not do that.
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Feb 8, 2011
FC13. In Screensaver, I've made sure no screensaver is selected. In Power Management, PowerDevil is unchecked, profile is set to "performance" and that profile is set to never dim the screen. In fact, just to be sure, I edited all the other unselected profiles to not dim the screen. I've done this as a user, and I've done this as root. My monitor still gets turned off at the 10 minutes mark (I used a stopwatch).
Site search only turned up this thread, but I'm using kde not gnome, and I can't locate a screensaver daemon to kill.
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Feb 24, 2011
I've been using Fedora 5 for a few years and have never had a problem with it. Recently I upgraded to Fedora 14 and have run into a problem with the desktop freezing a few minutes after it comes up. I can move the mouse pointer around but nothing happens when I click on any icon. This happens with Gnome as well as KDE. I haven't tried Xfce. I think I read somewhere that the freezing is a problem with my video chip which is an SiS located on the motherboard. Is there a way to fix this problem?
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Aug 9, 2011
I use LXDE for about 2 days now, having several issues, but most important, its the only DE that hangs up itself every 10-60 minutes.
All i do is surf the web, watch a movie or listen music (mp3). I have no idea what could it cause, i dont get a error message.
Its acting like, do you know the old hughe black vynil long play discs? when they had a scratch, they were repeating it over and over and over and over and over and over... Well its kinda the same, just that it repeats either the music or the video (just the audio), mouse is frozen, and nothing but power shutdown works anymore.
After the 3 other DE's i was using, i kinda like LXDE the most, but that bug (?) is pretty annoying.
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Mar 19, 2010
I have been having an issue with my screen blanking out after a few minutes (number of minutes unknown), since I reinstalled Fedora 12 (KDE) a couple of weeks ago. I have tried, yes, a lot of things to try to set it so that it doesn't blank out, to no avail. I have spent a lot of time on the Fedora forum seeking resolution, with a variety of suggestions, all to no avail. I went into System Settings > Power Control, and fooled with things around there and they didn't work. I tried xset and dpms and shutting them off. Still no cigar.
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Dec 2, 2008
I am having this problem with F 10. First I get the infamous message: Could not detect stabilization, waiting 10 seconds. at the beginning of the booting process. then after I initiate startx, I use gnome, all works fine and only for few minutes and the system freezes. At first the mouse freezes, then after 30 seconds or so, the mouse's cursor can move but clicks are ineffective, not even Ctrl+Alt+Backspace, or Ctrl+Alt+Del. I have to do hard reset.
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Aug 9, 2010
Im running Ubuntu 10.04 with the latest updates and im connecting from windows xp using tortisesvn.When I do svn+ssh//Connection_name/var/svn/repoI can connect just fine. The problem is that im asked 3 times for my password before the folder will display. I guessing its 3 times because the repo is 3 levels deep. In tortise if I click a folder to go another level deeper im asked for my password again. "Connection_name" is the name of the onnection profile I setup in Putty which is used by tortise via plink. I tried setting up a auth key but that didnt help either. If I use putty to open up the "connection_name" ssh connection, im only asked once for my password and can operate as normally expected.
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Aug 13, 2009
After logging into fedora about 5 minutes into the session everything except the mouse freezes on the screen. There is nothing that works. A hard reboot is done and the same thing happens after logging in. The system use to work fine up until a few weeks ago. I suspect it may be an yum update.
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Jan 13, 2010
I have installed Fedora 12 on a brand new pc, quad core, 4 GB RAM. Within 1-2 minutes after I log in, the computer stops responding. I can move the mouse and click on, but it is too slow, and the cursor drags.
Running Top shows that Xorg takes 80% of the CPU.
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Oct 25, 2010
After Gnome logon it may hangs in any moment (window scroll, app start, opening url)
If sound was playing in that moment it continuously repeats last sample (about 1 second length), but do not respond to mouse move/click or keyboard. If to let it stay in this state nothing change - sound sample still repeats and no response to input. I need to reboot it by reset button. Sometime when I press reset nothing happen then after couple of seconds computer turns off, after 1-2 sec on and then starts booting.
During first 15-20 minutes after booting it may hangs multiple times but after that it works without problems.
Tried do not logon 20 minutes after boot - do not help, it hangs anyway. Only helps logon and do nothing for awhile.
This behavior have started after F12 installation. F13 installation changed nothing, only F11 worked perfectly.
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Oct 30, 2010
Is there any option to hibernate desktop computer (on AC power) automatically after staying idol for say.. 30 minutes?In System>Preferences>Power Management there is a option to Put computer to sleep when inactive for minutes. But no option to automatic hibernate.
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