TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker or making a Paypal contribution here: paypal.me/SupportTMC

Anybody experienced this before? Very slow response time on front dash screen?

Discussion in 'Model S: User Interface' started by JMG, Jul 30, 2015.

  1. JMG

    JMG Member

    Joined:
    Feb 26, 2015
    Messages:
    546
    Location:
    NE Texas
    I've noticed this a few times now, and the only thing I can think of it might be related to is when the car is exposed to long periods of very high temperatures. We've been at 100 degrees for a few days now, and it seems to happen when the car has had a long time to sit and "bake".

    What I'm referring to is the computer, or operating system (for lack of a better term) lagging very noticeably. The first time I noticed it, was the worst it's been. The energy graph would stutter it's way up and down, very jerky. The rotating buttons on the steering wheel were VERY laggy (going back to my online gaming day terms...). For example, I would rotate the dial up or down and it might be 3-4 seconds before it would register that I had rotated it. The car itself handled and drove fine, but the interface on the dashboard was extremely slow. The closest thing I can compare it to is if you get an older PC computer that is loaded down with spyware and junk, then run a virus scan while simultaneously trying to render a video, and then try to surf the internet.

    It happened again yesterday, not quite as bad but still there. I am just wondering if the battery pack is so hot that it's dedicating less power to everything else?
     
  2. jerry33

    jerry33 S85 - VIN:P05130 - 3/2/13

    Joined:
    Mar 8, 2012
    Messages:
    12,753
    Location:
    Texas
    How long has it been since you last rebooted? It seems to me that most slowness (and it happens on maps for me) is due to memory fragmentation. Heat hasn't been a factor (happens in moderate temperatures as well).
     
  3. MrClown

    MrClown Autosteer Beta Tester

    Joined:
    Oct 3, 2014
    Messages:
    179
    Location:
    Denver
    I actually had this happen today for the first time, about an hour ago. I normally park in the garage but I had to move the car out to the driveway all day and it baked in the sun. It was a little over 90 degrees out today. When I moved it back into the garage I normally switch to the rear view camera so I can see if I'm far enough in and the display was very slow to respond. I had to tap the camera button many times and eventually held it down to get it to switch. I tried to turn on the A/C to cool things off and that took a lot of tapping to finally get it to register. It's all working fine now that things have cooled off somewhat. I hope that's not "normal" hot day behavior.
     
  4. apacheguy

    apacheguy Sig 255, VIN 320

    Joined:
    Oct 21, 2012
    Messages:
    3,713
    Location:
    So Cal
    No the battery pack does not step down the DC DC converter due to heat. The MCU has a fan which should be audible at interior temps in excess of 130 F. I have not noticed a slow down in reponsiveness, however, if the fan is not working it may not be adequately cooling. So check that, also reboot.
     
  5. woof

    woof Model S #P683 Blue 85 kWh

    Joined:
    Apr 30, 2009
    Messages:
    1,149
    Interesting! Just today I noticed the navigation (on the dash, not the 17") was very very slowly updating. It would scroll, then slowly fill in the image, as if it was coming from a very slow floppy disk with misaligned heads. And the air conditioning compressor was making so much noise that the car sounded like a Ferrari in first gear. It was 90 degrees out, cloudy, and the car was not baking in the sun. But this is the first time I've seen that much lag on the nav. Speedo seemed unaffected. I considered rebooting, but I needed the nav up to get me out of deepest darkest downtown Boston (I rarely drive the 'S there if I can help it!).
     
  6. andrewket

    andrewket 2014 S P85DL, 2016 X P90DL (soon 100)

    Joined:
    Dec 20, 2012
    Messages:
    5,043
    This happens to me every 20-30 days or so. A quick reboot fixes it.
     
  7. David99

    David99 Active Member

    Joined:
    Jan 31, 2014
    Messages:
    2,054
    Location:
    Brea, Orange County
    Yes I have had that happen many many times. It's a little less in the recent months.
     
  8. RyanT

    RyanT Member

    Joined:
    Sep 9, 2014
    Messages:
    184
    Location:
    Portland
    I notice a slowness when I use the navigator. It's the most noticable on the drivers screen, I think the turn by turn is the cause
     
  9. supratachophobia

    supratachophobia Active Member

    Joined:
    Sep 24, 2014
    Messages:
    1,980
    Location:
    Columbus, Ohio
    Make sure you don't have an unneeded routes programmed into the gps and try to keep your music playlists small if you can. Also, reboot regularly.
     
  10. jerry33

    jerry33 S85 - VIN:P05130 - 3/2/13

    Joined:
    Mar 8, 2012
    Messages:
    12,753
    Location:
    Texas
    ^^^^This. Rebooting fixes the problem until memory gets fragmented again.
     
  11. simonog

    simonog Member

    Joined:
    Jan 9, 2014
    Messages:
    350
    Location:
    United Kingdom
    This is the most likely cause. Interesting to know if rebooting fixes it for the OP.

    A second possible cause is heat related. If a processor gets too hot, a good OS will step down the clock speed as the faster clock speed means more heat generated by the processor.
     
  12. supratachophobia

    supratachophobia Active Member

    Joined:
    Sep 24, 2014
    Messages:
    1,980
    Location:
    Columbus, Ohio
    We need a snapdradgon 810 in there or better.
     

Share This Page