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." % 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. -- George N. White III
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