memtest86 is not on my system and apt would not install it. it is a desktop. I will attempt to reseat the pci-e card in the morning.
On Sun, Nov 5, 2017 at 6:09 PM, Robert Krawitz <[email protected]> wrote: > On Sun, 5 Nov 2017 17:52:45 -0500, Michael wrote: > > good thought yet all returned ok > > You could try memtest86 (which is much more thorough -- it's a mini-OS > of its own that needs to be booted). > > I would certainly not be surprised if it's thermal in nature. If you > are using OpenCL, I wouldn't be surprised if it's the video card if > it's the only intensive thing you do using it. But it could be the > motherboard, it could be the CPU, it could be the memory. > > Is this a laptop or desktop? Particularly if it's a desktop, does it > have a separate discrete graphics adapter (in a PCIe slot) or is it > using the integrated graphics if your CPU has such? > > If it's a separate, discrete graphics adapter there's a fair-ish > chance it could simply be the mechanical connector that's flaky. You > can try removing the card and reseating it, or putting it in a > different PCIe slot. You could try (carefully!) cleaning the contacts > on the card with a pencil erasor -- just make sure that the card is > grounded when you do this. > > If it has discrete graphics and is a laptop, it's probably not > feasible to replace the graphics adapter. Higher-end laptops these > days use what are called MXM modules (which are discrete cards), but > they're not easy to remove and you need to be very careful putting > things back together. If the laptop's under warranty, get it serviced > that way; if not, you're probably better off buying a new laptop. > > If it's using integrated graphics (on either a laptop or desktop), the > CPU could be bad (the integrated graphics is on the CPU chip). That's > not that easy to test, because the graphics logic is connected to the > CPU via an internal (to the die) PCIe link. > -- > Robert Krawitz <[email protected]> > > *** MIT Engineers A Proud Tradition http://mitathletics.com *** > Member of the League for Programming Freedom -- http://ProgFree.org > Project lead for Gutenprint -- http://gimp-print.sourceforge.net > > "Linux doesn't dictate how I work, I dictate how Linux works." > --Eric Crampton > -- :-)~MIKE~(-: ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to [email protected]
