03-06-2017 09:33 AM
On bios 34 it would crach occasionally but not as much as 35. But on 28ww bios it does not crash at all and it is the best bios version released as theres zero fan issues, lagging issues and no crashes.
03-06-2017 10:37 AM
Oh boy.... So I downgraded to BIOs 28. My battery was running low but I had it plugged in so I was not too worried about it. I went back into BIOS settings to update it to run the intel virtual machine, hit "save and exit" and then it proceeded to update itself back to BIOS 34. Thats weird. So I go back through the motions and reinstall 28 but as soon as I restart the computer it starts to self update back to 34.
Then my computer dies mid update.
As it turns out my power source was plugged into my computer but not to the wall. Now it's stuck in a weird boot loop. I tried holding the power button but that just turns it off. I tried the BIOS button on the side but that just brings it to the boot loop.
Does anyone know how to reinstall the bios?
03-06-2017 01:34 PM - edited 03-06-2017 01:34 PM
If you lost power mid-BIOS-write, and can't even boot to BIOS, I think you more than likely corrupted the BIOS itself. Call Lenovo, but my guess is you'll have to ship it out for service. :-(
03-08-2017 10:25 AM
I tried 28, 34, and 35 and nothing helps. Can anyone help on this? Is there a central ticket opened with Lenovo to address this issue?
28 worked OK for a few days, but it's back to the same issues. 34 and 35 are more pronounced, for sure, but 28 is no fix for me. I have the 16GB/512GB 4K version of the 910.
This is disappointing and I'm wondering what the root cause is as, surely, not everyone is experiencing this but just living with it?!? This is also the source of many not great reviews of this product, specifically due to this issue, so it's important to fix for a variety of reasons.
03-09-2017 09:36 AM
My answer is two fold:
The issue for me was that once a day the laptop would slow down and then completely freeze, as i learned, due to possible incompatibility between Chrome and the video driver.
Hope this helps.
03-10-2017 06:37 AM - edited 03-10-2017 06:40 AM
Interesting. I do believe that what's going on is related to the video driver somehow, based on the kernel routine that process explorer shows spiking when the problem happens (VidMMInterface). I don't, however, believe that it is specifically an incompatibility with Chrome, for a few reasons - for one, I was able to repro with Firefox and Edge as well. Only going back to BIOS 28 has helped for me (haven't seen the problem since, actually). Please report back if the new graphics driver helps, it seems plausible it will.
My guess is some sort of three-way interaction between the graphics driver, low-level CPU power management rules (in BIOS), and video-memory-intensive operations (really, system memory as the Intel 620 graphics don't have dedicated video mem).
Completely agree with the previous poster, Lenovo really should be working on this. Irritating glitches like this are why people buy macs. **bleep** the cost, at least Apple works the bugs out.
03-11-2017 02:01 PM
From where are you guys downloading an updated video driver? No luck through Lenovo or Intel's sites. What is the version number of the new driver? Thanks!