[SOLVED] Intermittent onboard video

linuxbird · 12-06-2015, 08:07 AM

I have an i7-3770k system, which is not overclocked, and has an add-on graphics board. The display is three NED EX231w displays in portrait mode, adjacent to each other.

One of the displays is driven by the Intel onboard graphics, and the other two are driven by the add-on graphics card.

The system runs Slackware 14.0, and I am using KDE.

The monitor attached to the onboard graphics is going blank periodically and KDE reports that a monitor has been disconnected. The monitor can go on and off several times a minute, or several times a day. Switching monitors shows that the problem is not in the monitor.

I have looked at messages and syslog, and found nothing.

My question is what should I be looking at to help me better isolate the possible cause of this problem?

Thanks for any guidance.

rokytnji · 12-06-2015, 10:44 AM

I see your point in posting this in hardware. But you would probably have received more attention posting this in the Slackware section of the site instead. Why I mention this. http://www.linuxquestions.org/questi...rt-4175545641/
Oh Well. Water under the bridge so to speak.

I'd poke around in /home/username/.xsession-errors

or poke around /var/log/xorg.log

or poke around

Code:

dmesg | grep vga

But not being a slackware 14 user handicaps my post.

Edit: re-reading your post. Your onboard graphics is the only problem. So here is how I post info on my onboard graphics.

run command as super user/root

Code:

lshw -numeric -C display
  *-display               
       description: VGA compatible controller
       product: C61 [GeForce 6100 nForce 405] [10DE:3D1]
       vendor: NVIDIA Corporation [10DE]
       physical id: d
       bus info: pci@0000:00:0d.0
       version: a2
       width: 64 bits
       clock: 66MHz
       capabilities: pm msi vga_controller bus_master cap_list rom
       configuration: driver=nvidia latency=0
       resources: irq:23 memory:fb000000-fbffffff memory:e0000000-efffffff memory:fc000000-fcffffff memory:c0000000-c001ffff

linuxbird · 12-07-2015, 07:08 PM

I found my problem...the dongle to the motherboard was intermittent, and after I reinserted it and secured it, things have run just fine. So much for reading the logs, and trying to be smart about fixing this.

BTW other things I tried including removal of the very light film of dust in the machine (at build time I added 3 fans and positively ventilated the case, with filters on the three fan inlets. It makes a difference!)

I also tapped around on the motherboard, looking for an intermittent in the video areas.

But in the end, it was a cable. Problem solved.