** Description changed: [SRU Justfication] BugLink: http://bugs.launchpad.net/bugs/2154392 These binary firmware changes are required for full Wifi and Bluetooth MLO functionality on DGX Spark and other MT7925 devices [Impact] Lack of full Wifi and Bluetooth MLO functionality on DGX Spark and other MT7925 devices, particularly with some Netgear APs + + In the original firmware, calibration was performed every time the channel was set. + However, the DPD calibration results would sometimes become incorrect, causing degraded TX quality. + After performing a full scan and recalibration, the calibration values would return to their expected levels, and TX quality would be restored. + This explains why the TX rate improves after a full scan. + + In the new version of the firmware, calibration is now performed only once for the same channel. + Additionally, the issue with DPD calibration results drifting has been fixed. + As a result, high TX quality and TX rate are achieved immediately upon connection, without needing a full scan. [Fix] Apply the following vendor-proposed patches from upstream: WiFi - https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux- firmware.git/commit/?id=b981cd3786e8275c6954f880e95ad54cacc5ccb8 NN Prereq: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux- firmware.git/commit/?id=ff2b45687e7334c17853638a91f55be3295a71e0 BT - https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux- firmware.git/commit/?id=c8949c63516c4548075d28576c429561e8e5ec81 NN Prereq: https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=1e133c2d1d755520c0a653c96fd4e34505039455 [Test Case] 1. Verify that Wifi can still be established with a non-Netgear device with the updated blobs. 2. Verify that Wifi can still be established with a Netgear device with - the updated blobs + the updated blobs, and that TX quality is no longer degraded [Where problems could occur] As this is an opaque binary update, this could impact all MT7925 WiFi and Bluetooth devices [Other Info] This update originates from a support request by Nvidia
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2154392 Title: [SRU][S/R/N] mt7925: Fix scanning issues with Netgear APs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/2154392/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
