On Mon, 27 Dec 2021 at 15:11, Íñigo Huguet <ihuguet@xxxxxxxxxx> wrote: > I've been experiencing similar problems, but they're solved at v5.15 > version, at least for me. > > How are you installing the kernel? Custom build? Have you updated the > firmware to latest versions, as well? I use Fedora Rawhide with default kernel and firmware packages. $ uname -r 5.16.0-0.rc6.20211223gitbc491fb12513.44.fc36.x86_64 $ rpm -q linux-firmware linux-firmware-20211027-126.fc36.noarch > > For me, these differences seem to be the normal effect of the driver > not recognizing the device. By the kernel logs, it looks like this: After reboot: $ dmesg | grep mt7921e [ 8.629358] mt7921e 0000:05:00.0: enabling device (0000 -> 0002) [ 8.630229] mt7921e 0000:05:00.0: ASIC revision: 79610010 [ 9.687652] mt7921e: probe of 0000:05:00.0 failed with error -110 # rmmod mt7921e # modprobe mt7921e [ 215.514503] mt7921e 0000:05:00.0: ASIC revision: feed0000 [ 216.604741] mt7921e: probe of 0000:05:00.0 failed with error -110 After cold boot after shutdown: $ dmesg | grep mt7921e [ 8.545171] mt7921e 0000:05:00.0: enabling device (0000 -> 0002) [ 8.545757] mt7921e 0000:05:00.0: ASIC revision: 79610010 [ 8.631156] mt7921e 0000:05:00.0: HW/SW Version: 0x8a108a10, Build Time: 20211014150838a [ 8.912687] mt7921e 0000:05:00.0: WM Firmware Version: ____010000, Build Time: 20211014150922 [ 8.938756] mt7921e 0000:05:00.0: Firmware init done [ 9.753257] mt7921e 0000:05:00.0 wlp5s0: renamed from wlan0 It looks like something is not re-initialized after a reboot. Laptop BIOS is latest: Version 316 https://dlcdnets.asus.com/pub/ASUS/GamingNB/G513QY/G513QYAS316.zip Maybe anyone from the pci mailing list can lid some light why pci device not re-initialized after a reboot? -- Best Regards, Mike Gavrilov.