C Crowley155 New member Joined Nov 22, 2017 Posts 1 Dec 5, 2017 #1 Hello, I work in the IT dept at my company and we recently purchased 25 Lenovo X1 Carbons as our standard laptop (replacing the Dell 5470 series). Unfortunately we've been having issues that are causing audio static & dropouts, mouse 'jerkiness', WiFi dropping, and other weird problems. We've been trying to fix this for several weeks and haven't been able to come up with anything or get any help from Lenovo. We've used a tool called LatencyMon and are seeing a lot of issues with wdf01000.sys. We've tried just about everything that we can think of. So far: Re-imaged several test machines using Lenovo repair tool We see this on machines right out of the box, and fully updated with most recent drivers & upgraded to Windows 1709 Fall Creators Update Updated BIOS Tried changing every BIOS setting we thought was relevant to performance/tweaking Tried updating drivers directly from vendors Xperf's don't show anything different or specific but we can re-run new ones We have a few HP Elitebook 840's and ~150 Dell 5470's with same specs (core i5, 256 ssd, 8gb memory) and we're not seeing these same performance issues [FONT="] [/FONT] [FONT="]------------------ System Information ------------------ Time of this report: 12/4/2017, 07:35:35 Machine name: LAPTOP-QOSSN6S9 Machine Id: {32A49C26-211D-499D-B617-479EC9A2C3A9} Operating System: Windows 10 Pro 64-bit (10.0, Build 16299) (16299.rs3_release.170928-1534) Language: English (Regional Setting: English) System Manufacturer: LENOVO System Model: 20HR000WUS BIOS: N1MET41W (1.26 ) Processor: Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz (4 CPUs), ~2.7GHz Memory: 8192MB RAM Available OS Memory: 8092MB RAM Page File: 2763MB used, 7248MB available Windows Dir: C:\WINDOWS DirectX Version: DirectX 12 DX Setup Parameters: Not found User DPI Setting: 144 DPI (150 percent) System DPI Setting: 144 DPI (150 percent) DWM DPI Scaling: UnKnown Miracast: Available, with HDCP Microsoft Graphics Hybrid: Not Supported DxDiag Version: 10.00.16299.0015 64bit Unicode[/FONT]
Hello, I work in the IT dept at my company and we recently purchased 25 Lenovo X1 Carbons as our standard laptop (replacing the Dell 5470 series). Unfortunately we've been having issues that are causing audio static & dropouts, mouse 'jerkiness', WiFi dropping, and other weird problems. We've been trying to fix this for several weeks and haven't been able to come up with anything or get any help from Lenovo. We've used a tool called LatencyMon and are seeing a lot of issues with wdf01000.sys. We've tried just about everything that we can think of. So far: Re-imaged several test machines using Lenovo repair tool We see this on machines right out of the box, and fully updated with most recent drivers & upgraded to Windows 1709 Fall Creators Update Updated BIOS Tried changing every BIOS setting we thought was relevant to performance/tweaking Tried updating drivers directly from vendors Xperf's don't show anything different or specific but we can re-run new ones We have a few HP Elitebook 840's and ~150 Dell 5470's with same specs (core i5, 256 ssd, 8gb memory) and we're not seeing these same performance issues [FONT="] [/FONT] [FONT="]------------------ System Information ------------------ Time of this report: 12/4/2017, 07:35:35 Machine name: LAPTOP-QOSSN6S9 Machine Id: {32A49C26-211D-499D-B617-479EC9A2C3A9} Operating System: Windows 10 Pro 64-bit (10.0, Build 16299) (16299.rs3_release.170928-1534) Language: English (Regional Setting: English) System Manufacturer: LENOVO System Model: 20HR000WUS BIOS: N1MET41W (1.26 ) Processor: Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz (4 CPUs), ~2.7GHz Memory: 8192MB RAM Available OS Memory: 8092MB RAM Page File: 2763MB used, 7248MB available Windows Dir: C:\WINDOWS DirectX Version: DirectX 12 DX Setup Parameters: Not found User DPI Setting: 144 DPI (150 percent) System DPI Setting: 144 DPI (150 percent) DWM DPI Scaling: UnKnown Miracast: Available, with HDCP Microsoft Graphics Hybrid: Not Supported DxDiag Version: 10.00.16299.0015 64bit Unicode[/FONT]
xilolee Moderator Staff member Joined Dec 31, 2013 Posts 3,670 Location World, Europe, Italy Dec 6, 2017 #2 Re: High DPC Latency | Lenovo X1 Carbon (20HR000WUS) Hi Crowley155. :welcome: (Moose here ) Not sure if I/we can help, but without any logs is almost impossible (for poor mortals like me, at least). Could you read this thread (click) and provide the logs?
Re: High DPC Latency | Lenovo X1 Carbon (20HR000WUS) Hi Crowley155. :welcome: (Moose here ) Not sure if I/we can help, but without any logs is almost impossible (for poor mortals like me, at least). Could you read this thread (click) and provide the logs?