@StickyD59 - Don't think restoring to factory settings is going to solve this problem, but will create lots of work for you reinstalling everything. And I certainly wouldn't restore to factory settings without imaging the entire disk first, or you'll lose all your personal files.
Exactly what "fault" do you have with that USB port, eg, no data transfer, no power, both...?
Does this happen with any USB device or only with a particular USB device in that port?
Thanks for the comments. There seems to be power but no data transfer - tried USB mouse, keyboard and memory stick. The other 2 sockets are fine.
I'm trying to introduce two USB video sources into OBS - one an HDMI source (through a USB encoder dongle), and the other a simple USB webcam. Just can't get the left hand USB to accept data.
Hard to know if this is a hardware or software issue, and it's possible you overloaded that one USB port and it failed.
Is this when running on battery, AC or either? Any of the diagnostics LEDs for a device or battery turned on?
Open Device Manager and click View>Show hidden... Is anything in DM marked with a ! or X?
Now look everywhere in DM for an "Unknown". If you find any, right-click and Uninstall. Then click Action>Scan for hardware... Reboot and test USB again. Start with something "easy" like a USB stick or the mouse.
If still not working, you may want to clear BIOS. This will require you to remove the motherboard battery which means some disassembly, and a fresh battery. The specs say it's a CR2032, but the picture shows a battery with cable and plug for the motherboard. Still could be a CR2032, but one with the cable. You'll have to confirm...
Reboot and start tapping F2 when you see the Dell splash screen to open BIOS setup
Copy down all current BIOS settings, to be safe
Power off, unplug power cord from rear of PC
Press/hold power button for ~15 sec
Open case and remove motherboard battery
Press/hold power button for ~30 sec
Install fresh battery
Close up and reboot
A simple workaround might be to get a multi-port USB hub with its own power adapter. Plug that into one of the working USB ports and plug its adapter into the wall. Then connect devices, one at a time to the hub and test each one, before adding the next one...
Thanks again for your comments. The dodgy port does seem to have power on it as memory sticks, port expander, etc. light up when I connect them.
There were no 'unknown' (or ! / X) devices when I looked through using the Device Manager.
I took screen shots of each USB port properties - memory sticks in two ports, and mouse/keyboard in the other. Seems like it just doesn't see anything on the dodgy port.
You didn't mention any status LEDs or if this happens only running on battery, and/or AC.
You do have an Unknown listed (right below USB Mass Storage Device) in the second image you posted. So you need to figure out which device that is. You can unplug each USB device, one at a time, and then look at that same Generic Hub to see when that Unknown entry disappears.
BTW: You never mentioned if the two new USB devices you tried to connect are USB2 or USB3. The PC's ports are USB2 so they can't provide enough power for USB3 devices. If either device is USB3, it's possible you overloaded the port so now even USB2 devices won't work.
I can't promise that resetting BIOS by installing a fresh battery will solve this problem, and this requires some disassembly. So you have to be totally capable doing that without causing any damage to the PC. You don't want to turn it into a useless door stop, and only you can make this decision.
Start by following the steps here to diagnose and fix USB issues, starting with Reset BIOS to factory defaults. Not the same or as good as replacing an old/weak battery, but it doesn't involve taking the PC apart. To be safe, before you actually reset BIOS to its defaults, be sure to copy down all current BIOS settings, and save that info, just in case.
If resetting BIOS doesn't help, continue down that list of "how-to" instructions...
RoHe
10 Elder
•
45.2K Posts
0
February 2nd, 2023 12:00
@StickyD59 - Don't think restoring to factory settings is going to solve this problem, but will create lots of work for you reinstalling everything. And I certainly wouldn't restore to factory settings without imaging the entire disk first, or you'll lose all your personal files.
Exactly what "fault" do you have with that USB port, eg, no data transfer, no power, both...?
Does this happen with any USB device or only with a particular USB device in that port?
StickyD59
3 Posts
0
February 2nd, 2023 13:00
Thanks for the comments. There seems to be power but no data transfer - tried USB mouse, keyboard and memory stick. The other 2 sockets are fine.
I'm trying to introduce two USB video sources into OBS - one an HDMI source (through a USB encoder dongle), and the other a simple USB webcam. Just can't get the left hand USB to accept data.
RoHe
10 Elder
•
45.2K Posts
0
February 2nd, 2023 15:00
@StickyD59 Version of Windows?
Hard to know if this is a hardware or software issue, and it's possible you overloaded that one USB port and it failed.
Is this when running on battery, AC or either? Any of the diagnostics LEDs for a device or battery turned on?
Open Device Manager and click View>Show hidden... Is anything in DM marked with a ! or X?
Now look everywhere in DM for an "Unknown". If you find any, right-click and Uninstall. Then click Action>Scan for hardware... Reboot and test USB again. Start with something "easy" like a USB stick or the mouse.
If still not working, you may want to clear BIOS. This will require you to remove the motherboard battery which means some disassembly, and a fresh battery. The specs say it's a CR2032, but the picture shows a battery with cable and plug for the motherboard. Still could be a CR2032, but one with the cable. You'll have to confirm...
A simple workaround might be to get a multi-port USB hub with its own power adapter. Plug that into one of the working USB ports and plug its adapter into the wall. Then connect devices, one at a time to the hub and test each one, before adding the next one...
StickyD59
3 Posts
0
February 3rd, 2023 06:00
Thanks again for your comments. The dodgy port does seem to have power on it as memory sticks, port expander, etc. light up when I connect them.
There were no 'unknown' (or ! / X) devices when I looked through using the Device Manager.
I took screen shots of each USB port properties - memory sticks in two ports, and mouse/keyboard in the other. Seems like it just doesn't see anything on the dodgy port.
Shal i go forward with the BIOS process?
RoHe
10 Elder
•
45.2K Posts
0
February 3rd, 2023 13:00
You didn't mention any status LEDs or if this happens only running on battery, and/or AC.
You do have an Unknown listed (right below USB Mass Storage Device) in the second image you posted. So you need to figure out which device that is. You can unplug each USB device, one at a time, and then look at that same Generic Hub to see when that Unknown entry disappears.
BTW: You never mentioned if the two new USB devices you tried to connect are USB2 or USB3. The PC's ports are USB2 so they can't provide enough power for USB3 devices. If either device is USB3, it's possible you overloaded the port so now even USB2 devices won't work.
I can't promise that resetting BIOS by installing a fresh battery will solve this problem, and this requires some disassembly. So you have to be totally capable doing that without causing any damage to the PC. You don't want to turn it into a useless door stop, and only you can make this decision.
Start by following the steps here to diagnose and fix USB issues, starting with Reset BIOS to factory defaults. Not the same or as good as replacing an old/weak battery, but it doesn't involve taking the PC apart. To be safe, before you actually reset BIOS to its defaults, be sure to copy down all current BIOS settings, and save that info, just in case.
If resetting BIOS doesn't help, continue down that list of "how-to" instructions...