Here is what I get when I execute "apport-collect 1446027" in terminal
with xdiagnose installed: ERROR: Could not import module, is a package
upgrade in progress?  Error: No module named PyQt4.QtCore

I'm currently running Kubuntu 14.10 Plasma Next technical preview. I've
got a working Kubuntu 14.04.2 disk image, so if there's no way to
circumvent this in 14.10 Plasma Next, I could quickly restore the image
and try the trick again. Or should I better try the same command in a
14.04 LiveCD environment? The bug can be reproduced on any Ubuntu flavor
and kernel version.

(Un)fortunately, it turns out this is not an X.org bug. Somehow I had a
sudden shutdown while on UXA acceleration and low battery -- in fact,
just a single shutdown in two days and a half though I'm intentionally
running the battery as low as possible and watching lots of online
videos -- but it's clearly not X.org itself. Switching back to SNA,
however, immediately resulted in multiple shutdowns.

I was able to dump and tear down the BIOS portion of the netbook's UEFI
BIOS and edit it to enable access to lots of hidden power management
options. I also updated the CPU microcode and I'm currently struggling
to inject a newer VBIOS OROM based off a generic Sandy Bridge VBIOS. The
latest official BIOS seems to contain some really dated OROMs.  I'm
almost sure we have to blame BIOS, not Linux.

-- 
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

Reply via email to