That's exactly what I tried on my second RMA Attempt. I was trying to use Windows 8.1 and had intermittent shutdowns.
It was all like: -- I downloaded all the official drivers and power management software from your website. It hangs. -- We do all the testing on Windows 7. This model does not support Windows 8. -- Why I am able to select Windows 8 in the Downloads section for my model and download W8-only driver packages then? Why is there a Super Hybrid Engine package specifically for Win8 listed for my model? -- Does this mean UX21E *officially* supports Windows 8? Stop being a jerk and use Windows 7. We don't support Win 8. -- I'd rather stick with Linux but it also hangs. -- Just remember we ran every factory test possible and all hardware components are in perfect health. There's no need to return to us for a third time. Bye. It was Microsoft support who told me to do a hard CMOS reset. Microsoft says that there were numerous complaints about this behavior from people who tried to use Windows 8 on ASUS Zenbooks (not only UX21E) They told me some people claimed that the issue was gone forever after a single CMOS reset. This wasn't my case, though. I wasn't able to make a report with http://cdimage.ubuntu.com/daily- live/current/vivid-desktop-amd64.iso during the "vendor custom throttle engaged" stage because with this LiveCD, my netbook starts shutting down erratically iunder zero load at about 27% charge and ASUS's built-in throttle only activates at 19-20%. Resetting the CMOS does not help. Besides UEFI boot, I also tested with legacy boot (to eliminate the possibility of a faulty EFI OPROM) and it is still all the same. Ubuntu is much more lighter on resources (especially GPU) than Kubuntu so I can't explain this. I used to install the vanilla Ubuntu out of curiousity back when 14.04 was released and only had shutdowns according with the "Flash Player + high power consumption" scenario. I sincerely hope there is way to block BIOS from interfering with the power management in vendor-specific ways, rather handing it off onto the Linux kernel. So far I use the "Native ASPM" and "Native PCI-E" BIOS options (they prevent BIOS from doing anything with ASPM and PCI-E runtime PM) -- I get lower temps, better battery time and slightly lower shutdown probability. I mentioned the situation in my e-mail to ASUS on Friday, their response is still "Linux is bad for your ASUS device" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1446027 Title: SNA acceleration causes sudden shutdowns and corrupts CMOS data on the the Asus UX21E ultrabook on a wide variety of kernels since at least Ubuntu 14.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1446027/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
