Lenovo 11e E/Edge :: E440 Screen Flickering When Plugging In / Out AC Power
Jul 5, 2014
My Lenovo E440 screen flickers when I plug or unplug the AC power charger. I think this happened after I installed all the drivers. This doesn't occuer when the windows was still 'fresh-installed'.
I read on other thread that this also happened on other machines and I think the cause is the same, the refresh rate change from 60Hz to 50Hz when I plug the AC power and then it goes back to 60Hz when I unplug the AC power. So I plug the AC power then change both refresh rate to 60Hz. It went fine when I unplug the charger, but when I plug the charger again the refresh rate for while plugged in change to 50Hz again no matter how I try (so it flickers again when I plug the charger again).
Also, I am using Windows 8.1 Enterprise Evaluation and I've installed the latest Windows Updates, Lenovo System Updates, and Nvidia driver update.
My question is:
1. Is this software error or what? If it is software error then shouldn't this occur on all user?
2. What is the difference between the display refresh rate? Which one should I use (I though higher refresh rate is better)? Why does the refresh rate change when I plug/unplug the charger? If I remember correctly AC power source is 50Hz, does it related to this problem?
View 3 Replies
ADVERTISEMENT
Jan 22, 2015
I bought a lenovo e440 specs i5-4300M(2.6GHz),4GB RAM,500GB 5400rpm HD,14in 1366x768 LCD,1GB NVIDIA N15V-GM, CDRW/DVDRW,802.11bgn wireless, 1Gb Ethernet,UltraNav, Camera,6c Li-Ion, running windows 8.1 64 bit all drivers are installed and working properly .
My problem is when i am using avidemux or handbrake or nero recode 2015 to convert video my cpu usage is always at 100%.its not using the nvidia cuda capabilities to take load off the cpu .its like the switchable graphic is always stuck on intel 4600 .
I tried updating the graphic cards and latest bios update .tried putting the power at high performance. Opened nvidia settings and added programs to the list to be used with nvidia graphic processor . In bios i have selected the nvidia graphic card ... still the same cpu is at 100% during video converting .
View 5 Replies
View Related
Sep 21, 2008
Can any E440 and E540 owners confirm whether these laptops feature the ability to remap the Fn and Ctrl keys? I understand a BIOS setting provides this function on previous E-series models, but haven't found information specific to the newer models that confirms this setting is present.
View 2 Replies
View Related
Feb 22, 2014
I have another question regarding the E440 specifically. The technical spec sheet says optional fingerprint reader, but I don't get that option on any of the customizations for this laptop. Is it really no longer an option?
View 5 Replies
View Related
Feb 22, 2014
I have a newish (4/2014) Thinkpad E440 with a 500 GB HD. All of a sudden, the hard drive has filled up. I cannot account for all of the space. Here's what the system says:
35.2 GB available of 452 GBApps: 31.4 MBPictures: 76.1 GBVideos: 137 MBMusic: 20.9 GBDocuments: 8.14 GBDownloads: 0 bytesRecycle bin: 0 bytes
So you can see this is a wee bit over 135 GB. Where in the world is the rest of the space? Here's what I've looked at / done so far:
"System Protection" is turned on and is currently using 10.48 GB. I have the max set at 3% (13.59 GB). There are currently 3 saved restore points. --> EDIT now it says it's using 5.97 GB and there are only two restore points now.I've run "Disk Cleanup" and it says I could regain 33.6 MB. Whoo-whooooo!The disk was 1% fragmented so I ran defrag.I ran the error checking tool on the drive and it said there were no errors on the drive. Now, after finishing the defrag, I've lost more space "as we speak"20.4 GB available of 452 GBApps: 31.4 MBPictures: 76.1 GBVideos: 137 MBMusic: 20.9 GBDocuments: 8.14 GBDownloads: 0 bytesRecycle bin: 0 bytes
FYI: When I go to Lenovo Solution Center and click on Support and then go to Configuration History, the calender there shows the yellow triangle with the exclamation point in it for "System Events" on every single day that I use the laptop. When I click on one of those days, it shows multiple "Application Errors". This has been going on since the day I got it. I don't know if there is a log somewhere that is spiraling out of control.
I forgot to say I use Kaspersky Pure 3.0 for virus software and I have it performing a Full Scan, a Vulnerability scan and a Critical Areas scan every day. I also scanned the drive with Malware Bytes and it did not find any malware. Also I am running Win 8.1 - it came that way from Lenovo.
View 1 Replies
View Related
Jul 16, 2011
I just took delivery of a new E440. I've noticed that when I type a " character, on the first key press nothing appears on the screen. If I type another " then two appear together.
Is this a 'feature' - a way of turning it off so I get just what I type, or Does this indicate I have a keyboard problem?
View 3 Replies
View Related
Feb 22, 2014
I did have 10 updates that failed to install for some reason. The error code for all of these is the same (80240054) but I don't get any results on the MS site for that code.
Article 3004394 December 2014 update for Windows Root Certificate Program in Windows
Article 3012199 December 2014 servicing stack update for Windows 8.1 and Windows Server 2012 R2
Article 3013816 December 2014 MDM client update in Windows
Article 2994290 Update to Language Interface Packs for Windows 8.1 and Windows RT 8.1
Article 3008925 Microsoft security advisory: Update for vulnerabilities in Adobe Flash Player in Internet Explorer: December 9, 2014
Article 2989930 "Not Connected" status for a paired Surface Pen in Bluetooth settings on Surface Pro 3
Article 3008923 MS14-080: Cumulative security update for Internet Explorer: December 9, 2014
Article 3013769 December 2014 update rollup for Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2
Article 3013126 MS14-085: Vulnerability in Microsoft graphics component could allow information disclosure: December 9, 2014
Article 3013410 December 2014 cumulative time zone update for Windows operating systems
I don't use IE and it's obviously not a Surface Pro... Why Bluetooth would go away?? My computer also ended up in Airplane Mode for some reason, but I turned that off. On the Network Window under Wireless Devices, Bluetooth shows as Off and is grayed out...
View 1 Replies
View Related
Feb 18, 2014
I bought this computer on Jan. 1st and so far I love it, however, a few days ago I noticed that everytime I connect or disconnect my charger the screen goes black for a few seconds. It's not the worse problem however it is extremely annoying! I tried checking both the intel graphics settings and power management settings to see if an adjudtment would work but it has not.
View 2 Replies
View Related
May 24, 2014
I use a USB MIDI keyboard (Akai LPK25) with my Ideapad. I've not previously had an issue with this configuration, but since about a week ago, as soon as I plug in the device the touch screen becomes disabled. Removing the device doesn't restore touch screen functionality; I actually have to reboot.
Was there a recent USB upgrade that's causing this issue?
View 2 Replies
View Related
Jan 20, 2015
I have screen flickering problem with my Acer Aspire 725 with windows 8 OS. Flickering stops when i remove the power supply. I could see the battery plugged and unplugged symbol in Windows 8 continuously. Whether i should replace my battery or power supply adaptor?
View 1 Replies
View Related
Oct 29, 2012
Loving my Yoga 13 so far have had it since Oct 26th when it was released. Like everyone else I had some issues with partitioning yadda yadda yadda, got that taken care of, but lately I've noticed that my screen brightness seems to flicker, ALL the time, when switching from program to program if the color changes on the screen I notice that the brightness changes as well in noticeable increments. I have the automatic brightness setting set to OFF, so I can't imagine that's the reason.
View 9 Replies
View Related
Jan 5, 2014
When plugged into the adapter my Levovo Z570 screen flickers between bright and dark when on certain webpages or doing certain tasks. I have changed the battery and this makes no difference. This doesnt happen when on battery power.
Note that the brightness is flicking between the battery brightness setting and plugged in brightness setting. So if there is a large difference between the two the flickering is very noticable and distracting. If I make the battery brightness the same as the plugged in brightness the flickering doesnt happen.
Lenovo IdeaPad Z570 15.6 inch Laptop - Gunmetal (Intel Core i7 2670QM, RAM 8GB, HDD 750GB, NVIDIA GT520M 1GB, Blu ray, WLAN, BT, Webcam, Windows 7 Home Premium 64 Bit
View 1 Replies
View Related
Jul 3, 2014
This Lenovo X1 Carbon (2014) screen starts randomly flickering when traveling in trains and running on battery. We already ran all system updates and it happens less often, know but it happens. Here is a video of how it looks like: [URL]
View 8 Replies
View Related
May 25, 2014
Just received my new X1 model# 20a70037-US last week and right out of the box the screen was already flickering. When the laptop is booting up in the POST screen you see a bunch of little white dots all over and as soon as you get to the windows login screen the flickering begins. Just like on this video I found online [URL] ....
I uninstalled the Intel drivers and now it's flickers less and the laptop is somewhat usable. I should be receiving my replacement unit this week, can't wait to have this laptop working 100%.
View 2 Replies
View Related
Dec 11, 2012
My W530 laptop is new. I finally got it all loaded up and ready to work with and then I started to get screen flickering issues. The screen will flicker all different colors and then it will restart the computer. The computer will start up and act normal. I have video of the issue.
The audio in the video is not from the computer. [URL] ....
View 5 Replies
View Related
Dec 31, 2014
So my battery from my Thinkpad e420s Laptop was broken and I ordered a new one and exchange it. But now when I go to the Power Manager it says Battery Error and I cant charge it. And when I take out the power plug it shuts down immediately. What can I do?
View 1 Replies
View Related
Jun 23, 2013
I connected with the power plug and there was no green/yellow light next to the power socket. It seems not charging at all. Now it is forever dead. Tried to take the battery pack off, and connect it directly power plug, still dead.
View 3 Replies
View Related
Nov 10, 2013
Validity fingerprint sensor - how to replace power-on password with fingerprint?
new fingerprint manager for thinkpads with VALIDITY reader has only fingerpint enrolment capabilities and cant find any optio to use fingerprint instead of power-on password or HDD-password thinkpad e431 ....
View 1 Replies
View Related
Feb 27, 2013
I bought 2 of these in oct 2011 for my twins going to college. My daughters has had no problems. The other one died in may 2012 and was repaired under warranty. It died again in November 2012. I was able to get it running by removing the battery and disconnecting the cmos battery and letting it sit for a while.
It happened again, and this time I can't revive it. I want to add that I think there was something wrong when we got it back from repair. The battery icon for the Lenovo power management did not work, but the windows one did. In hindsight I think this had something to do with nvram problem I have since heard so much about.
View 1 Replies
View Related
Jan 27, 2013
This is a brand new TP T440p and I installed a fresh copy of Windows 8.1 Pro on it (licenced). I've applied all Windows updates and installed all drivers/BIOS updates from Lenovo System Update.
The computer works fine, but when I put it to sleep and wake it back up, the external monitor is almost always flickering (there is a 1mm movement to left and right, line by line - I'll shoot a video, if the camera will be able to capture the movement, because it's very "fine"). Sometimes it stops after a few minutes, but most of the time I need to re-boot the computer.
Also, not always, but many times the WiFi connection is lost and I can't reconnect unless I reboot the computer.
[URL]
View 5 Replies
View Related
Oct 20, 2013
I have an S440. I've had it for one week. Two days ago I downloaded the Windows 8.1 update from the store. Since then, when I start up the computer, it doesn't even taken me to the 'sign in' screen. There's just a black screen. When I move the cursor, it briefly appears, flickers, then disappears again.
I understand this is an issue with the graphics drivers. So I ran Windows in safemode and disabled Intel R HD Graphics family and AMD Radeon HD 8600 series graphics drivers.
This, unfortunately, hasn't fixed the problem. It still boots to a black screen with an occasionally flickering cursor. I'm currently running in safemode.
View 9 Replies
View Related
Dec 30, 2012
I have a Thinkpad Edge E520. The volume and brightness keys are working, but the on screen display I used to have is gone. I tried everything I could find on the web, still not working.
View 4 Replies
View Related
May 21, 2013
I bought a Lenovo thinkpad E430 recently with Windows 8 operating system. There is no print screen button in it even with Fn key. How to get print screen.
View 2 Replies
View Related
Aug 18, 2011
I just got my lenovo thinkpad edge e420 and after about a month of using it the on screen display for volume, microphone, camera, etc the f buttons has stopped showing up on my screen. I had not updated any drivers or anything i think i may have uninstalled one of the programs for this by accident i am not sure....
View 3 Replies
View Related
Feb 10, 2014
I was wondering what the correct resolutions are of the 3 available screens on the customizing page of the Lenovo E540. I can't find it anywhere and I really want them for comparing.
View 1 Replies
View Related
Nov 7, 2009
The thing they call "edge to edge glass" which is really just plastic above an ordinary screen. The thing is, that the screen under that edge to edge plastic is a nice anti-glare screen, no kidding! You can see this if you take your laptop in sunlight and tilt it the right way.
So what's happening is you're getting the worst part of an anti-glare screen (reduced contrast ratio) plus the worst part of a glossy screen (unless you have a really pretty face).
I took the plastic thing off, cut along the black/clear border, pulled out the middle, and stuck the centerless border back on the laptop.
Result? THIS SCREEN IS FANTASTIC. Yeah ok, of course I would say that. But if you knew me, you'd know that was way out of the ordinary and really meant that THIS SCREEN IS FANTASTIC.
One thing you may not have considered is that the screen in its default position has yet another flaw, both sides of that glossy plastic thing are glossy, so some of the light coming from the screen is reflected back to the screen, and as you know light reflected onto the screen has a yellowish tint. That is my guess as to why the whites on this screen are really really white now, and the screen is much brighter. This also explains why other 300nit screens used to look so much brighter than this.
I will have more pics when I am able to charge the battery to my good camera. If anyone has any questions about removing that plastic thing I'll be happy to answer your questions, it's actually pretty easy. For those interested, here is how I did it:
1. I removed the "star" head screws, this was accomplished not with a special star head screw driver, but an ordinary flat head precision screw driver.
2. Put some paper over a hacksaw blade to avoid scratching, wedged it under the plastic near the top where the camera is, and snapped out the first of the several lock-in points on along the top edge. I proceeded to detatch the rest of the top of the screen in this way.
3. Both the left and right sides were held on mostly by adhesive, the very edge point locks in slightly, but the efforts removing these sides are focused mainly on separating the adhesive bond.
4. I pulled upward on the plastic and it came right off, there seems to be no adhesive or lock-in points on the bottom side.
5. Using the center of the screen as a test area, I tested several cutting utilities and decided on the utility knife. To my surprise, the plastic was about 1mm thick.
6. I clamped the screen down to the table, with a straight edge positioned 1mm inward of the black line, to give headroom for errors.
7. I cut along these lines, and repeated step 6 for each side, and pushed out the center to reveal the border piece that now resembled a common laptop screen enclosure border.
8. I used a medium grit sand paper to bring the cut lines to meet the black lines, and finished it off with a fine grit sand paper.
9. I applied some electrical tape to the area between the edge of the screen itself, and the edge of the laptop on the right and left sides because there was light leakage, and then popped the border back on and screwed it down.
Found the charger! Here's the high res shots. They do *some* justice to the screen quality.
View 10 Replies
View Related
Nov 7, 2009
I went insane and cut along the black-to-clear border of the m1340 screen thing. The thing they call "edge to edge glass" which is really just plastic above an ordinary screen.
The thing is, that the screen under that edge to edge plastic is a nice anti-glare screen, no kidding! You can see this if you take your laptop in sunlight and tilt it the right way.
So what's happening is you're getting the worst part of an anti-glare screen (reduced contrast ratio) plus the worst part of a glossy screen (unless you have a really pretty face).
I took the plastic thing off, cut along the black/clear border, pulled out the middle, and stuck the centerless border back on the laptop.
View 5 Replies
View Related
Feb 21, 2011
I recent did Microsoft and Lenovo updates and I have lost the On-Screen Volumn display. Not the Volumn icon in the task bar, I lost the display that shows the volumn going up or down on the screen. The video support suggested installing Power Management but this did not work. I have tried uninstalling and reinstalling the audio drivers, also did not work.
View 8 Replies
View Related
Oct 7, 2012
I have a problem with my Lenovo. The problem is that whenever I plug or unplug my pc adapter, the screen goes black for a second or so. I didnt experience this problem before, it started to occur a week or 2 ago.URL....
View 1 Replies
View Related
Apr 22, 2010
I saw on the Dell website when customizing a Studio 15 that they give the option for that. From what my research finds that it is simply a glosser screen? Is that right?
What are the benefits and the down side to these edge-to-edge screens?
View 8 Replies
View Related
