06-21-2019 01:03 PM - edited 06-22-2019 01:59 PM
After applying the update 7QCN41WW from Lenovo Vantage advice, the touch screen seem dead now. I've also updated all the drivers it suggested me. I can see the touch screen in the list of devices and followed all the guides possible on this forum like disabling/enabling the device, removing and rebooting. I even enabled the downgrade in BIOS and flashed the previos BIOS version 7QCN38WW (fortunately, all the installed versions are stored on C:\BIOS), but no luck! It works with the pen, but not with fingers.
One other thing to consider - I've also updated some of the software that Lenovo Vantage suggested me as well as the drivers. I used to trust Lenovo - not something I'll continue to do........
Anything else I can try? It is still on the warranty but I cannot stay without a laptop for a month of "diagnostics" and have the drive wiped out after the service.
06-22-2019 12:44 PM
06-23-2019 08:58 AM
I have a Yoga 520 and I too have been facing touchscreen issues. There's a lot of new threads for the touchscreen issues on the forums as well, so I guess something has gone wrong software wise.
For me the system acts as if there's no issue at all and Windows reports that everything is fine.
06-23-2019 09:45 AM
Yes, I also noticed a big amount of threads, but no solution yet. And yes, Windows reports no issues, Lenovo Vantage reports no issues, everything is "fine" from the Software standpoint, but not from the user's one. Still hoping to get some official reply.
The same for me in the system status:
06-25-2019 11:23 AM
06-25-2019 10:36 PM
I've just updated Windows to the latest version possible - 1903. Installed ALL THE UPDATES as well. Everything from Lenovo Vantage is installed as well. BIOS was updated to 7QCN41WW. STILL NO RESULTS - WINDOWS SAYS I HAVE 10 POINTS TOUCHSCREEN, but it doesn't work. Tried again delete the device, update/rollback drivers, nothing works.
06-26-2019 08:24 PM - edited 06-26-2019 08:52 PM
I was going through some old screenshots of mine and noticed that a day or two ago instead of the usual 220.127.116.11 driver Windows 10 installs, it installed 18.104.22.168. This driver works well for the most part. Sometimes when I leave the laptop sleeping for a while it stops working till I reboot but apart from that it has been fine. Also, check the event manager and see the latest available event. Through the event manager I realized the old driver had some issues starting the device in Windows 10 which led me to using the Windows provided driver rather than the lenovo provided one.
Keep in mind you will lose the wacom pen app if you let Windows 10 install the driver, but then you can access all pen settings within Windows now.
06-26-2019 09:46 PM
Thanks for the report.
It seems like I have the same driver installed from 22-Jan-2019, and I have already uninstalled the Pen Application related to this Wacom piece of sh.. - still not working. Did you manage to get it working well?