Hello mate, Apparently could be a problem with the realtek audio drivers. Try to install the latest version it should solve your problem. Keep us posted. Then there are the Lenovo S21e and the Acer Aspire E 11. They both sell for around 170, thus are slightly more affordable than the other two options. Solved Hi, I have recently purchased my Lenovo Y50 and am starting to get screen flickers. There are horizontal lines flickering and the screen. Find your Laptops today. All the latest models and great deals on Laptops are on PC World. In this post Ill explain how to troubleshoot a dead laptop and find the problem. The following troubleshooting tips are. Lenovo Z570 Drivers For Ubuntu' title='Lenovo Z570 Drivers For Ubuntu' />Solved Lenovo Y5. Screen Flickering Page 2. FALSE ALARM. I switched on the PC yesterday and some initial flickering when switching from the Login screen to Desktop but very quickly stable. On desktop mode all looked good but when I launched OPERA the flickering got very bad and even worse than before for a few seconds lets say 3. Quickly got to stable and I managed to browse and check pictures, run a couple of other software, emails without any flickering or just very rarely. Basically is much much better than before after the initially strange amount of blinkingflickering. This morning I switched on and no flickering when I launched Opera but just a little bit when it switched from log in to desktop. PROBLEM NOT SOLVED BUT IS NOW MUCH BETTER, WILL KEEP ON TESTING. Solved Computer reboots by itself, something about kernel power Ok guys, so I downloaded the debugging tools for windows and I followed an online tutorial to read the dump file. Heres the result Loading Dump File C WindowsMinidumpMEMORY. DMPKernel Summary Dump File Only kernel address space is available. Symbol search path is SRVc symbolsttp msdl. Executable search path is Windows 7 Kernel Version 7. Bilgisayar/500/Bilgisayar_1498167.jpg' alt='Lenovo Z570 Drivers For Ubuntu' title='Lenovo Z570 Drivers For Ubuntu' />MP 4 procs Free x. Product Win. Nt, suite Terminal. Server Single. User. TS Personal. Built by 7. Machine Name Kernel base 0xfffff. Ps. Loaded. Module. List 0xfffff. 80. Debug session time Thu Jan 1. UTC 5 0. 0System Uptime 0 days 1. Loading Kernel Symbols. Loading User Symbols. Loading unloaded module list. Bugcheck Analysis                                                                                                                 Use Bug. Check C4, 9. ERROR Module load completed but symbols could not be loaded for vsdatant. ERROR Module load completed but symbols could not be loaded for asw. Tdi. SYSProbably caused by vsdatant. Followup Machine. Owner 0 kd Bugcheck Analysis                                                                                                                 DRIVERVERIFIERDETECTEDVIOLATION c. A device driver attempting to corrupt the system has been caught. This isbecause the driver was specified in the registry as being suspect by theadministrator and the kernel has enabled substantial checking of this driver. If the driver attempts to corrupt the system, bugchecks 0x. C4, 0x. C1 and 0x. A willbe among the most commonly seen crashes. Arguments Arg. 1 0. A driver switched stacks using a method that is not supported bythe operating system. The only supported way to extend a kernelmode stack is by using Ke. Expand. Kernel. Stack. And. Callout. Arg. Arg. 3 fffff. 80. Arg. 4 0. 00. 00. Debugging Details BUGCHECKSTR  0xc. DEFAULTBUCKETID  VISTADRIVERFAULTPROCESSNAME  System. CURRENTIRQL  2. LASTCONTROLTRANSFER  from fffff. STACKTEXT  Some useless stuff was erased hereSTACKCOMMAND  kb. FOLLOWUPIP vsdatant1. SYMBOLSTACKINDEX  5. SYMBOLNAME  vsdatant1. FOLLOWUPNAME  Machine. Owner. MODULENAME vsdatant. IMAGENAME  vsdatant. DEBUGFLRIMAGETIMESTAMP  4be. FAILUREBUCKETID  X6. BUCKETID  X6. 40xc. Ajax Update Div Every 5 Seconds. Followup Machine. Owner 0 kd lmvm vsdatantstart             end                 module namefffff. Loaded symbol image file vsdatant. Image path System. Rootsystem. 32DRIVERSvsdatant. Image name vsdatant. Timestamp        Sun May 0. BE6. E2. CACheck. Sum         0. 00. FD2. 1Image. Size        0. File version     9. Product version  9. File flags       0 Mask 3. FFile OS          4. NT Win. 32. File type        3. Driver. File date        0. Translations     0. Company. Name      Check Point Software Technologies LTDProduct. Name      Zone. Alarm Firewalling Driver. Internal. Name     VSDATANT. SYSOriginal. Filename VSDATANT. SYSProduct. Version   9. File. Version      9. File. Description  Zone. Alarm Firewalling Driver. Legal. Copyright   Copyright Check Point, LTD The dump file says Zonealarm is crashing my computer, so I uninstalled Zonealarm. Lets see if it does the trick.