Windows 8 and 8.1 Forums


Random Windows 8.1 BSOD while browsing - atikmdag.sys

  1. #11


    Posts : 7
    Windows 8.1 64-bit

    Oh, no! It Happened Again!


    Oh no, now I'm freaking out!

    I hadn't made any chances since my last post (removing the VPN, updating the driver from the Toshiba site again), and the computer was working fine, but I just got another BSOD with SYSTEM_THREAD_EXCEPTION_NOT_HANDLED (atikmdag.sys).

    Except this time, instead of getting stuck on the "we'll restart for you" blue screen (forcing me to eventually manually power off), my computer went into the restart process by itself.

    Then it went into the windows 8 "Updating, do not turn off" screen. It cycled through the progress process twice, then eventually went to the standard lock-log in screen as usual.

    I ran a new DM log right away, it's attached. Any ideas?

      My System SpecsSystem Spec

  2. #12


    My guess would be that you use Firefox as a browser. If so, you will find using another browser will cure your "problem". I have the same laptop as you (Satellite C75D-B7260} and have been fighting this error for several weeks. Tried several different Display Adapters from Toshiba, AMD and Generic while using Firefox. I even tried operating on only one CPU core, then 2 cores, then three and back to four and a few other complicated "solutions" found through Google, all to no avail.

    I hate Internet Explorer with a purple passion but decided to experiment. Lo and behold, went a week with no BSOD ATIKMDAG.SYS while using IE. So then started using Opera and was much better than IE and still no BSOD's after a week. I then ran across an aside comment in a Forum post somewhere where a poster mentioned all his problems occurred while using Firefox but went away when he disabled "Hardware Acceleration". I disabled that setting over a week ago now and have had no BSOD's while using my favorite Firefox. I had just decided my fix worked and was about to post the fix on the Toshiba Support Forums when someone else reported the same success.

    Start Firefox, click on the Settings Menu at the upper right side and then Options. Click on the Advanced Tab and uncheck the box alongside "Use Hardware Accelleration Where Available". Restart Firefox. I have not found any problems with that setting unchecked. As a plus, FF actually loads a bit faster than before and goes to website addresses a bit faster. AND, no BSOD's.

    I hope this works for you.
      My System SpecsSystem Spec

  3. #13


    Posts : 2,480
    Windows 10 Pro x64


    This is interesting. Please try and report back.
      My System SpecsSystem Spec

  4. #14


    Posts : 7
    Windows 8.1 64-bit

    Will try!


    Wow, thanks for the advice, cbwilsha!

    You were right, I was indeed using Firefox. I've disabled hardware acceleration, so I'll test it for a while and see how things go. Thanks for the tip.

    Oh, and are you using a VPN yourself? Does it cooperate?
      My System SpecsSystem Spec

  5. #15


    No, I don't use VPN so can't comment about that. BTW, if you haven't already, you ought to visit the Toshiba Laptop Forums at laptopforums.toshiba.com where you can learn a lot about your laptop. I've volunteered there for several years and we have quite a few very knowledgeable folks available for questions and problem solving.

    All the support details for your specific machine are located HERE. The latest AMD Display Driver for your model is HERE in case you need it.
      My System SpecsSystem Spec

  6. #16


    We're anxious to hear about what's going on with you, sarcasticwriter.
      My System SpecsSystem Spec

  7. #17


    Posts : 4
    win 8.1 64 bit


    i too have had the BSOD atikmdag.sys issue, Toshiba C75D-B7350......laptop a month old, BSOD (5 times) has occurred when using beloved FFox (varied amount of tabs), this morning BSOD happened just after startup and opening FFox (single tab), tried updating display driver via device properties, windows response "have latest driver"... have deselected hardware acceleration in FFox will wait to see what happens, and post if anything else happens , thx for the help provided
      My System SpecsSystem Spec

  8. #18


    I feel reasonably certain your BSOD problem will be solved. I've gone 10 days now back with FF since disabling hardware acceleration and no BSODs. Good Luck!
      My System SpecsSystem Spec

  9. #19


    Posts : 4
    win 8.1 64 bit


    I finally broke down after years of either making due with P3 equivalent/ Amd socket A desktop (circa 2001) [ Internet wise I go back as far as AOL 2.0 ] now running win7 or dead laptops from friends/neighbors and reviving them, to a brand new system that has issues basically out of the box a bit disheartening, hoping to hell that disabling Hardware acceleration resolves this issue, crossing everything but my transistors
      My System SpecsSystem Spec

  10. #20


    Posts : 4
    win 8.1 64 bit


    After posting i checked my driver using AMD Driver Autodetect, i was not using the latest driver and have upgraded to this driver AMD-Catalyst-Omega-14.12-Without-DOTNet45-Win8.1-64bit, will keep HA unchecked in FFox
      My System SpecsSystem Spec

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