12-28-2018 10:33 AM
I've noticed the computer always restarts with Blue Screen of Death, when I fold it into tablet mode, with the error code DPC_WATCHDOG_VIOLATION. It only happens when I fold it all the way, on the last 5 degrees, until then everything works fine.
At first, I thought this can be a software issue, so I have updated all drivers with Lenovo Companion and checked Windows Update. Everything is up-to-date. The problem is still present so I'm thinking to make a Service Request and before that, I want to make sure, I'm not missing something.
Do you have any idea why is fault occurs?
Solved! Go to Solution.
12-30-2018 04:56 AM
Same problem here. The laptop also shuts down unexpected when I close it the "normal" way. There is no possibility to suspend the laptop with closing it. And no possibilty to use the tablet mode.
This was both working fine till mid of december. I think there are some of the last drivers installed via Lenovo Vantage broken.
How can I find the broken driver? Or do I need to uninstall all of the last updates?
12-30-2018 05:26 AM
On the X1Y2, if you've installed the latest Intel Management Engine firmware update, there's a known issue where the Intel Sensor Solution driver must be at 126.96.36.19927 or later. If not, it'll BSOD on standby/hibernate. It also seems to affect the mode change. Vantage won't show it until Lenovo gets caught up after the holidays.
12-30-2018 06:05 AM
In the meantime, I have managed to fix the issue.
Updating all the drivers have solved the problem. I suggest it was the Sensor Solution driver, indeed, but I can't be certain because I have installed around 10 drivers in one reboot attempt.
Unfortunately, the Lenovo Update manager software (Vantage) does not find all driver updates, you have to download them manually.
12-30-2018 01:35 PM
I'm the person who originally reported the issue with the X1Y2 and light sensor in a different thread. After we figured out what the issue was, the fix from Lenovo and Intel was a firmware update for the sensor hub, which was posted along with the newest ME firmware. It was noted that the sensor hub firmware also required the updated driver or would cause BSODs. There's a note in the readme for the firmware about it. On another thread I posted in, the problem was a DPC_WATCHDOG_VIOLATION and the fix was the updated ISS driver.
01-01-2019 02:49 AM
01-11-2019 04:05 AM
That update fixed the issue for me as well. The readme of the update states:
[Problem fixes] - Fixed an issue where BSOD occurs after updating ISH firmware to 188.8.131.5220.
I had to endure 10 days of regular blue screen crashes despite auto-install of critical updates being enabled in lenovo vantage. Calling lenovo support was useless - they had no clue and didn't even suggest manually checking for driver updates!