Thinkpads Forum

The Postman wrote:I have been using Win10 on my W510 for quite a while now, and I am quite pleased except for the *****Expletives removed by Moderator***** upgrades all the time. Coming from an XP machine then to Win7 on this laptop, I cannot say that I am missing anything that I had before. I I no longer run on battery - it stopped functioning about a year ago, so I don't really know if Power Manager is working or not. I tried to download Lenovo Tools, but that was a failure, and I have not tried to do that for almost 6 or 8 months now. all in all, I am pleased. Win7 was a very good OS, and I think I can say the same for Win10 on this machine.

I bought a used W510 a few months ago that has Windows 10 installed on it. I manually added a bluetooth module to it as soon as I bought it.

There is no official support for Windows 10 on the W510, but I have not had any issues getting all of the hardware to function. I do sometimes run into some odd bugs:
1. The fingerprint reader does not always activate when waking up the laptop from sleep (fails about 10% of the time)
2. Can get sleep lag issues with getting the login prompt to reappear quickly.

My battery (9-cell) life is around 2 hours. I cannot recall if i have power manager running or not. Probably not.

The fingerprint scanner not waking up has been an issue since forever. My W520 has it too from time to time.

But with W10... fingerprint has been made useless anyway. You need to enable PIN before you can use the FPR. Yeah... no

The same with Bluetooth; no longer auto-accepting file transfers. Why came up with that idea??

Two problems with my W520 with Win10:

1. After Wake up from Sleep, there is a System Process running constantly using 15-20% of the CPU, the CPU fan running on max, and generally stuff running slower as you would expect. I am trying to figure this out, but can't. Windows forums say it's a driver issue, but so far, I've been unsuccessful in determining that.

2. If on battery, some application needs to use the GPU, then CPU is clocked at 800MHz, and then it never recovers to normal usage after the GPU using application is terminated.

Does anyone have any solutions to these problems?

zvuqniki wrote:2. If on battery, some application needs to use the GPU, then CPU is clocked at 800MHz, and then it never recovers to normal usage after the GPU using application is terminated.

That is normal for W520 using any OS.

zvuqniki wrote:1. After Wake up from Sleep, there is a System Process running constantly using 15-20% of the CPU, the CPU fan running on max, and generally stuff running slower as you would expect. I am trying to figure this out, but can't. Windows forums say it's a driver issue, but so far, I've been unsuccessful in determining that.

Have you ran "Driver Booster" to see if there are newer drivers for the various hardware devices within your laptop ?
(http://www.majorgeeks.com/files/details ... oster.html) .... (be sure to create your own System Restore Point before installing drivers)

hhhd1 wrote:

zvuqniki wrote:2. If on battery, some application needs to use the GPU, then CPU is clocked at 800MHz, and then it never recovers to normal usage after the GPU using application is terminated.

That is normal for W520 using any OS.

Is there some way to manually start normal usage of the CPU after you close the GPU using application?

Another issue is the lack of Lenovo Power Manager. So you need to use powercfg /batteryreport, but that one doesn't give a lot of info. No first use date, no mfg date, no cycle count. And all the capacities in (Wh) are faulty reported as mWh...

The Power Manager would from time to time inform the user if the battery went bad. With just W10.. forget it. When I installed W10, it was at 66 Wh, last july. Now, it is 42 Wh (full charge), but it never said anything.

Well, the new one reports 95Wh and the box from Lenovo is dated 2016-08-06, which, I guess is last August, pretty good. It's also 12 grams lighter

Today I connected external display via DP to w520. Installed latest nvidia drivers and unfortunately 1000M is not up to the task completely. Browsing in windows and firefox is sometimes jerky. This never happens with laptop own screen. Looks like that optimus is not working correctly. W10 tells me that I have two screens but in color profiles I have three sceeens. In otherhand youtube works well @60pfs dropping 0 frames. Own panel is FHD and external is 1920x1200. Atleast annoying screen flickering every now and then is gone.. That is traced to optimus and can be easily cure in bios by forcing intel as only gpu -when using laptop display only.

Edit: Found out that jerky feel is happening when cpu speed is lowest possible and sametime scrolling website with pictures or so causes suttering. Cpu speed doesn't response as quickly as it does when using intel graphics. I think it is what it is.

Only on battery.

No. When plugged.

On what powerplan?

Balanced. Bios is set full performance with AC. I'm kinda over with this. It is not that annoying.

On Maximum Performance the problem is also gone probably.