General :: Fullscreen GLUT App Display Blanks After Approx 30 Minutes
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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Dec 14, 2010
Since upgrading to 11.04, my screen goes blank if I am not active for 10 mins. This is really annoying if I'm sat on the sofa watching a movie through the computer!
The screensaver is set to 1 hour and the power management settings are set to 'never'. I never had this problem with the previous Ubuntu version. I'm on a desktop rather than a laptop.
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May 16, 2011
My debian squeeze + testing + unstable came with gdm3.
After setting in /etc/gdm3/daemon.conf:
AutomaticLoginEnable=true
AutomaticLogin=myname
I don't have to type in my username and password on startup. But after a few inactive minutes the screen blanks out, and I have to type in my password now in order to continue. For me hitting any key would be enough. How can I change that?
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Jan 22, 2011
which will show a png from GIMP on the screen in fullscreen mode. I was using GIMP and there is an option to save my image as an .h or .c file. I tried .h and it saves it as some kind of very large variable. I want to call this from my own C program and display it on the screen.
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Jul 6, 2010
I am using lucid and the adobe-flashplugin 10 package. When I watch programmes in fullscreen on the BBC iPlayer or Channel4-on-demand player it works fine but switches back to windowed mode after about 5 or 10 minutes. I put it back into fullscreen and the same thing happens after the same sort of time. I read this thread about flash switching out of fullscreen when the volume is adjusted, but I'm not adjusting the volume...how can I fix this?
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Nov 16, 2010
Need a Linux solution for looped slideshow from pictures in some folder. Pictures may be deleted and added, so it's a bonus if it doesn't stop/crash if currently shown picture is deleted.
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Feb 3, 2011
I have two Ubuntu 10.4 machines (and Ubuntu continues to hide more and more xorg.conf config such that I no longer know where to find it). One is a laptop running dual headed - DP1 is the internal screen, and VGA1 is an external monitor; both are running at 1600x900. The other machine is a desktop running both VGA1 and HDMI1 (which is actually a display port with a DVI adapter) at 1600x900. So in both instances my desktop is 3200x900. I run a VNC server on the laptop and connect to it (via SSH tunnel) from the desktop - when I press the full screen hot key, I get a 1600x900 view of the remote machine on one monitor, and half of my local desktop on the other monitor - the "full screen" only expands to fill one local monitor.
Normally this is exactly what you want when you full screen a web browser, email client, or other application. I'm sure there's some X magic to make it clear what a full screen actually entails, and the vnc client application is just dutifully accepting what it's told. While I would like to keep the normal full screen behavior for regular applications, but when I'm VNCing to another 3200x900 machine, I'd really like full screen to stretch across both local displays. Resizing the window to be "close" isn't quite good enough since I still have local panels at the top and bottom of one display (though I can set them to autohide), plus the VNC client application window border (since it doesn't appear to respect -notitle).
Is there any good way to have X lie to a single application about the "full screen" size? Can I get it to lie to all applications? xrandr --noprimary appears to have no effect.
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Mar 1, 2010
I can't play videos on fullscreen with VLC player for more than 7 to 8 minutes. It heats up my laptop & then CRASHED...[Compaq c785tu, 2 GB Ram, Ubuntu 9.10]
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Mar 31, 2011
os: fedora 9how do i check if i have glut.h installed?actually,i tried to run graphics programs in KdevelopC/C++ ,i included the line#include<GL/glut.h>and it shows an error at all functions including glut functions when i compiled it.also i have gone to project->project options->configure options->linker flags->-lglut
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May 6, 2011
Actually I used a skeleton init script provided in /etc/init.d/ and did some edits to run my own daemon process. This is my source code of file
#! /bin/sh
### BEGIN INIT INFO
# Provides: statd
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
[Code]...
Where is a mistake and this script also not printing a "starting [DAEMON]" or "stop [DAEMON]" when I executed the command sudo service [daemon] start/stop
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Nov 14, 2010
I've setup postfox on Fedora 13 in order to send emails to and from gmail. I thought this was working, but it is dropping approx 50% of mails with an error. The other 50% work OK. It seems completely random.
I've read the link but I stil dont quite understand.
My machine is just a PC, on talktalk's network in the UK.
I use dyndns to allocate a DNS alias (well several actually) to my dynamic IP address - not sure if this is relevent.
Is it failing due to a reverse DNS lookup on the dyndns host? Or is it because it cannot resolve my localhost.localdomain?
I used to have this running on opensuse and swear it used to work 100% of the time.
What am I doing wrong?
Quote:
Nov 14 18:12:40 linuxserver1 postfix/smtpd[14619]: connect from localhost.localdomain[127.0.0.1]
Nov 14 18:12:40 linuxserver1 postfix/smtpd[14619]: 367D428388: client=localhost.localdomain[127.0.0.1]
Nov 14 18:12:40 linuxserver1 postfix/cleanup[14622]: 367D428388: message-id=<20101114181240.367D428388@linuxserver1.localdomain>
Nov 14 18:12:40 linuxserver1 postfix/qmgr[2834]: 367D428388: from=<myaccount@gmail.com>, size=3309455, code....
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Apr 25, 2011
since some update to the latest Flash, I've been getting a weird issue. If I'm watching a flash video in fullscreen (via firefox) and hit "esc" to leave full screen, about 20-40% of the time it will screw up the monitor's display of everything. The entire screen gets weird white and colored pixels randomply all over the screen (see the attached picture). Restarting is the only thing that fixes this. I tried logging out and back in but the issue remains. I have two questions:
1. How do I fix this without a restart?
2. What could be causing this?
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Jun 3, 2010
I would like to use a linux box to display message in big big big into the monitor in something nice.
Freevo like would be great [url]
Big fonts and fullscreen to display it... would be perfect.
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May 31, 2011
I am working on a gym class display screen which was built by others. It is operated under Ubuntu. Everytime I click on Firefox, the page goes to fullscreen, but the problem is that the gym class display is not zoomed to full screen (which is what we need). there are black blank parts on both the right and the bottom of the screen.There is no shortcut key working under firefox either, which means I can't zoom the screen or even enter url for any websites.I checked the gym class website on my computer, everything looks perfect. I think there must be some setting wrong on the operating machine.
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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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Jun 9, 2011
I'm running nxfree to log into my remote xubuntu PC from my local xubuntu laptop since the X protocol was broken.Has been working fine. Recently upgraded from Lucid 32bit to Maverick 64bit Xubuntu.Now when I run nxclient in fullscreen mode, if I minimize the window (or just log out) my local display does not return.I'm left with just the background colour. The windows are still there but not visible. For example I can:* randomly right-click and a menu pertaining to the invisible window appears;* press alt-tab and cycle through the windows but activating one does not display it (it remains invisible);* press ALT-F and bring up the current active (but invisible) application file menu;Basically I press ALT-F and ALT-TAB and close everything and then log out and log back in to restore the windows/panels.
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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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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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Mar 13, 2010
I need to edit myfile in a script.I tried items below but it did not change anything.
myfile:
141 aaaa bb Jun 4'09su Jun15'09mo yyyy
206 vvv nn Jun 4'09su Jun16'09tu tt
208 bb yyyy Jun 4'09su Jun15'09mo vvvvvvvv
[Code].....
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Jul 25, 2011
I'm looking for some sample C++ code that uses OpenGL on XCode 4.1 for OSX Lion. All I have found so far are GLUT and/or Objective-C samples. Has anyone come across something similar to what I'm after? I really just need something simple that allows me to open a window, or start in fullscreen.
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Mar 15, 2010
I have verified using yum that I have the most uptodate glut, freeglut, freeglut-devel etc., yet when I compile Example 2-6 from the Red Book at http://www.glprogramming.com/red/chapter02.html#name16, I get a window that is too small for the program output, includes display from other windows, and will not redraw after being resized.
I get slightly better behavior with the SGI sample program mentioned in the same book, 'checkers.c'. Again, the initial size is too small, but at least it will resize and redraw the checkerboards entirely inside the resized window. What is going on here? Is this some bug in glut? I can't see anything obviously wrong in their glut initialization, which looks like:
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB);
glutInitWindowSize (350, 150);
[code]...
Then again, since I am such a newbie to glut, I am not sure I would recognize what, if anything, they did wrong. what ARE the valid and useful command line parameters I could have passed to the main() above?
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Apr 30, 2010
I have a external USB Transcend Hard Drive having capacity 320 GB Formated in NTFS. I have installed ntfs-3g module in my centos 5.4 box for accessing or writing this drive. I am facing a problem in this HDD that when I try to transfer data from cantos machine to this hdd which is approx. 40 GB then after copy of some GB of data to external drive copy gets stuck and also it don't give me any error.. I am able to copy 1 to 5 gb data in my ext. drive. I have checked this drive in same machine on windows xp this situation is same in this platform also and also it gives me in this an error message that write delay failed. I have checked this drive on my laptop which having same winxp sp3 but problem was same.
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Sep 8, 2010
I've been having this issue since at least 9.10. I'm randomly encountering disk thrashing and application freezing which lasts around 30 seconds. Some applications seem to encounter this more often than others. Firefox and Picasa are pretty reliable at reproducing the issue. It also happens often when I'm using Transmission. CPU usage is not unusually high during the 'thrashing' sessions. Running iotop hasn't shed any light on the problem either. I was wondering if anyone else has encountered this or maybe someone could give me some clues. I'm running a dell inspiron 530 with ubuntu 10.04 64bit. I have 4gb of ram. Here is my 'df -h' if that is helpful.
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 103G 26G 73G 26% /
none 2.0G 288K 2.0G 1% /dev
none 2.0G 1.1M 2.0G 1% /dev/shm
none 2.0G 232K 2.0G 1% /var/run
[Code].....
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Dec 1, 2009
I've got a problem with my VLC MediaPlayer (v1.0.3-GoldenEye). During video-playback, my screenbrightness is turned to zero after approx- 30 seconds of playback. After turning the screen brightness to high again, the same thing starts over again. By now, I encountered that changing screen resolutions (e.g. after closing a fullscreen application with a different resolution) also turns my brightness to 0.
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Jan 15, 2011
I have installed torcs (using sbopkg) and the dependencies plib, OpenAL, and freealut. On running it I get
Quote:
GLUT: Fatal Error in torcs-bin: failed to create OpenGL rendering context.
I am not sure if it is relevant but this is xorg.conf
Quote:
# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 1.0 (buildmeister@builder62) Tue Jul 28 19:48:57 PDT 2009
Section "ServerLayout"
[code]....
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Jul 17, 2010
We have a computer, was windows, we installed ubuntu. It worked well for several months, but once in a while the screen would blank out. The computer was still on, the lights on the computer box are still on, but I can't get the screen to show anything. In the last couple of days, it now does this a couple of times a day. I have to hit the computer off switch, do a shut down, and reboot.
Any particular set of keys I can switch to get the screen to go back on? Like ctrl alt delete?
Also, how do I check the computer to see if there are any problems with the computer? There is system, system testing, does that check the hard drive, start up sequence, anything else? What else can I use to test the computer, system.
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Sep 24, 2015
During idle moments the last two evenings I thought I would try out Mahjong on my laptop. At first it worked ok then on the subsequent games it blanks my laptop screen after say 10mins and I have to reboot. I am using the updated Jessie. Is this a screen burnout?? My display in "settings" is showing unknown
Correction it now blanks using Iceweasel too
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May 24, 2010
I am running a nvidia gt220 video card and dual monitors. The acer monitor blanks out and in periodically. Quite often at times. I believe this is a driver problem. What I am wanting to do is roll back to an older driver. In the nvidia repository I only see the newest one listed and that is the one I am using.
I am thinking the 185 driver is what I have used before without any problems. Really not sure which one it was, but it was an older one. So the question is how can I get back to the older drivers so I can try and see which one it was.
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Jul 15, 2010
No problems with CD-RW, but DVD+RW are being blanked in an incorrect way. Ubuntu cannot recognize them at all after the blanking. I have to take the disks to another computer having Windows installed to blank them via Nero, and after that I they become OK for burning in Ubuntu via Brasero. I've got an old LG CD/DVD drive which was working fine in Windows. Who can recommend another program for CD/DVD burning for Ubuntu 10.04? (correctly blanking, certainly) I have installed the suggested updates for Brasero but of no avail.
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