08-09-2016 06:05 PM
Something odd. I got the Windows 10 Anniversary Update a couple of days ago (Aug 3 2016).
I usually keep my screen resolution at 1600x900 (easier on my aging eyes for everyday use).
Now I have noticed that when I reboot, my login screen is garbled - only the top-left quarter of the login screen can be seen. I need to shutdown and restart, and then all is fine.
This only happens after a full reboot (not a hibernate), and only seems to be the 1600x900 resolution.
3200x1800 (the native resolution) and 1920x1080 do not seem to exhibit this issue.
Note that all three of the above-mentioned resolutions have the same aspect ratio
Any ideas? Is it just me?
Solved! Go to Solution.
08-09-2016 06:32 PM
If you have the Yoga 900-13ISK, I would update your video card drivers to the latest 126.96.36.19963 version released by Lenovo on 7/26/2016 by clicking on the link below; making note of where it will be saved so you can run after it downloads. You may already have the latest, but if so the installer will just tell you so, and if not, it will install the latest versions.
Intel VGA Driver for Windows 10 (64-bit) - Yoga 900-13ISK verion 188.8.131.5263 - 7/26/2016
Once the file named 87lk01af.exe file has downloaded, run the file and follow the prompts to install.
If it still misbehaves, download and install the latest Intel Chipset driver 87li01af.exe using the link below in the same fashion as you installed the one above.
Intel Chipset Driver for Windows 10 (64-bit) - Notebook verion 10.1.1.9 - 4/13/2016
Hopefully these updates will take of that problem for you.
08-09-2016 07:25 PM
Thank you for the reply.
Yes, it is a Yoga 900-13ISK. Purchase in April 2016.
I am pretty sure I already have all the updated drivers, but I followed your instructions regardless:
... starting with resolution at 1600x900...
1) Installed VGA Driver (followed your provided link). Note that the installer did NOT mention that it was newer
2) Rebooted, as requested by installed
3) Observed same issue (only top-left quarter of login screen showing)\
4) Proceeded to intsll Intel Chipset Driver
5) Rebooted, as requested by installed
6) Observed same isse
Wierdness is that when the issue occurs, I shutdown (via power button on side) and restart, and all is then well.
Again, issue does not occur when machine is coming out of hibernation
See attached. Please pardon the terrible screenshot. I have hilighted in red the portion of the login display that is visible. If I attempt to log in, the text box for the password is "off the screen" (ie: in the black area)