On Tue, Oct 28, 2025 at 8:16 PM Stephen Morris <[email protected]> wrote:
> *From:* Stephen Morris <[email protected]> > <[email protected]> > > *Sent:* Wednesday, 29 October 2025 at 09:10 UTC+11 > > *To:* [email protected] > > *Subject:* RE: Network USB Dongle Connection Issue > > *From:* George N. White III <[email protected]> <[email protected]> > > *Sent:* Sunday, 19 October 2025 at 01:13 UTC+11 > > *To:* Community support for Fedora users <[email protected]> > <[email protected]> > > *Subject:* RE: Network USB Dongle Connection Issue > > On Sat, Oct 18, 2025 at 3:12 AM Stephen Morris <[email protected]> > wrote: > >> Lsusb sees the dongle without any issues but I can't identify what >> chipset the dongle is using. >> >> What does lsusb exactly print? >> >> >> I thought the issue may have been fixed with deleting the network >> definition for the wifi and recreating it with the new dongle, but having >> used the wifi interface for several minutes it disconnected and reconnected >> again, which is better than what it was previous as it was unusable. The >> lsusb output is below, but when I ran this originally, before the device >> was usable, the section that tells me the manufacturer name wasn't >> displaying, but like originally I can't see anything obvious that tells me >> exact chipset. >> > > Usually the ID 0846:9072 is enough. You can check the LHDB with < > https://linux-hardware.org/?id=usb:0846-9072>. I see one LHDB probe with > this device. It is shown as "working", but doesn't give the name of an > in-kernel driver, so either may be using a very new (possibly buggy) > in-kernel driver or a 3rd party driver. "inxi -Nzxx" should tell you what > driver is being used. > > From the Linux Kernel Driver Database: < > https://cateee.net/lkddb/web-lkddb/MT7925U.html>: "This adds support for > MT7925-based wireless USB devices, which support operation at 6GHz, 5GHz, > and 2.4GHz IEEE 802.11be 2x2:2SS 4096-QAM, 160MHz channels." > > Thanks George, that module looks like it might be it. The dongle/router is > a tri-band 802.11be device with 2.4GHz, 5GHz and 6GHz bands. I've tried a > modprobe of that module but at the moment it doesn't seem to be doing > anything, I'm trying to see if it is actually installed. > > > % modinfo mt7925u > filename: > /lib/modules/6.16.12-200.fc42.x86_64/kernel/drivers/net/wireless/mediatek/mt76/mt7925/mt7925u.ko.xz > license: Dual BSD/GPL > description: MediaTek MT7925U (USB) wireless driver > author: Lorenzo Bianconi <[email protected]> > firmware: mediatek/mt7925/WIFI_MT7925_PATCH_MCU_1_1_hdr.bin > firmware: mediatek/mt7925/WIFI_RAM_CODE_MT7925_1_1.bin > alias: usb:v0E8Dp7925d*dc*dsc*dp*icFFiscFFipFFin* > depends: > mt7925-common,mt792x-usb,mt76-usb,mt76,mt792x-lib,mt76-connac-lib > intree: Y > name: mt7925u > retpoline: Y > vermagic: 6.16.12-200.fc42.x86_64 SMP preempt mod_unload > [...] > > >> Just as a matter of interest is there anything I can do to increase the >> connection speed? At the moment the device is running at 29.2 Mbps but it >> is capable of connecting at up to 6 Gbps. >> While writing this email the device has disconnected and reconnected a >> number of times, which then also causes all the active firewall zones to >> also bounce. >> [...] >> > > > Look for details with journalctl. You may need newer firmware. Some > systems have buggy USB, or a mix of USB2 and USB3 ports. > > Under windows the device has a driver supplied with it to enable the > device, which also lights a light on the side of the dongle and it connects > at 2882/2882 Mbps on the 6GHz channel. > > I've issued the command inxi -Na -E and it has given me the following > output, does this mean there is no driver available for it? This display is > after issuing a modprobe mt7925u and a depmod -a. > > Device-4: NetGear Wireless_Device driver: N/A type: USB rev: 3.2 > speed: 5 Gb/s lanes: 1 mode: 3.2 gen-1x1 bus-ID: 6-2:2 chip-ID: > 0846:9072 > class-ID: 0000 serial: 000000000 > > regards, > > Just following up on this if modprobe mt7925u doesn't appear to do > anything, and the firmware for the 7925 chipset is installed and support > for that chipset appears to be in the kernel, how do I load the kernel > module as the kernel config appears to be specifying that the support is > modularized rather than static. > > There should be error messages. Start with the dongle unplugged. Open a couple terminal windows. In one window, run "journalctl --no-hostname --follow" and then cnnect the WiFI dongle and in the other window run "modprobe -v mt7925u". -- George N. White III
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