bxdobs Posted March 20, 2016 Share Posted March 20, 2016 I have been using HDSDR with a Lenovo ThinkPad W510 Laptop and a RTL2832/R820T DVB-T+DAB+FM DV3 USB2.0 for over 2 years on top of XP Pro 32B SP3 with no issues ... I recently did a fresh install of Win 7 Pro SP1 on this machine which is certified and originally delivered with W7 Pro 64b, but cannot get any SDR software to recognize/find the RTL Device in Win 7 ... I rebooted this machine today in XP and proved that the RTL device is still working properly (HDSDR 2.7)So basically, for some reason, I cannot get any of the latest versions of 3 SDR programs; SD#, HDSDR or SD-RADIO to find this RTL device in Windows 7 Pro 64b SP1I downloaded all the Software and details from Zadig, SD#, HDSDR, and SD-RADIO sites, sifted through numerous links on this topic to no avail.After initially inserting the RTL device, Windows 7 fails to install drivers (which was expected) ... downloaded and installed the latest WinUsb (v6.1.7600.16385) driver using Zadig 2.2.689 ... Windows 7 indicates the device has been installed correctly.Laptop has 2 USB 2.0 ports and both are returning the same resultsResults:- SD# says it cannot find a RTL DEVICE- HDSDR 2.7 with ExtIO_RTL2832.dll cannot find a RTL DEVICE- SDR-RADIO with RTLUSB-20130209 cannot find a RTL DEVICE- rtl-sdr both the 32 and 64 bit versions of rtl_test return NO DEVICESome observations between W7 and XP- W7 has 2 Bulk-In Device entries ... XP has none- W7 has 2 USB Composite Devices ... XP has 1 USB Composite Device- in W7 the Zadig instructions say to install the driver on the Bulk-in 0 Device ... in XP this driver appears to be attached to the Composite Device- both W7 and XP appear to be using the same revision of WinUsb v6.1.7600.16385I have deleted ALL Composite and Bulk-in devices several times for both 2.0 USB ports and reinstalled the Bulk-in 0 device with no difference Just ran USBDeview.exe version 2.55 ... it is reporting that Bulk-In 0 is not connected (confusing as Zadig wants the WinUSB driver installed on this device) ... Bulk-In 1 is connected and Composite device name is RTL2838UHIDIR Any suggestions would be greatly appreciated Quote Link to comment Share on other sites More sharing options...
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