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Bug#1035824: installation-reports: unable to detect Realtek RTL8188EUS 802.11n USB WiFi adapter

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  Bug#1035824: installation-reports: unable to detect Realtek RTL8188EUS 802.11n USB WiFi adapter Cyril Brulebois <kibi@debian.org> - 2023-05-09 21:50 +0200

#79002 — Bug#1035824: installation-reports: unable to detect Realtek RTL8188EUS 802.11n USB WiFi adapter

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Control: reassign -1 src:linux
Control: tag -1 patch

Hi,

Cyril Brulebois <kibi@debian.org> (2023-05-09):
> Fabian Greffrath <fabian@debian.org> (2023-05-09):
> > Sadly, another failed attempt to install Debian on my brand-new Lenovo
> > IdeaPad 5, this time using a USB dongle equiped with the Realtek
> > RTL8188EUS chip set.
> > 
> > The installer failed to detect the network adapter and presented me
> > with a list of kernel modules, none of which got my device to work.
> > This is what dmesg reports after I plug the adapter into a USB port on
> > my current device, which is obviously not the same one as the report
> > applies to  (which is why I removed all of the appended logs):
> > 
> > [42871.476218] usb 1-4: new high-speed USB device number 19 using xhci_hcd
> > [42871.624725] usb 1-4: New USB device found, idVendor=0bda, idProduct=8179, bcdDevice= 0.00
> > [42871.624729] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
> > [42871.624731] usb 1-4: Product: 802.11n NIC
> > [42871.624732] usb 1-4: Manufacturer: Realtek
> > [42871.624733] usb 1-4: SerialNumber: 00E04C0001
> > [42871.936975] r8188eu: module is from the staging directory, the quality is unknown, you have been warned.
> > [42871.970033] usbcore: registered new interface driver r8188eu
> > [42872.005633] r8188eu 1-4:1.0 wlx482254c71aaf: renamed from wlan0
> > [42872.597812] r8188eu 1-4:1.0: firmware: direct-loading firmware rtlwifi/rtl8188eufw.bin
> > [42872.597825] r8188eu 1-4:1.0: Firmware Version 11, SubVersion 1, Signature 0x88e1
> > [42881.731472] r8188eu 1-4:1.0: firmware: direct-loading firmware rtlwifi/rtl8188eufw.bin
> > 
> > Interstingly, calling dmesg on the system where the installation
> > attempt failed, the line starting with 42871.936975,i.e. where the
> > actual kernel module is loaded, and all following ones are omitted.
> 
> Please share the full /var/log/syslog (compressed).

Nevermind, as spotted by Pascal Hambourg, the staging driver isn't shipped
in nic-wireless-modules (name that's slightly different from the usual
drivers/staging/rtl8**).

Reassigning to src:linux and tagging accordingly.

Merge request coming up (once Salsa upgrades are over), but the r8188eu-udeb
branch is already available in my fork:
  https://salsa.debian.org/kibi/linux/

Tested locally by hotpatching the relevant linux-support file, with the same
line addition, resulting in the following debdiff:

    Files in second .deb but not in first
    -------------------------------------
    -rw-r--r--  root/root   /lib/modules/6.1.0-8-amd64/kernel/drivers/staging/r8188eu/r8188eu.ko

Unlikely to appear in time for RC 3, chances should be better for RC 4 (but
it really depends on whether we'll need or want another linux upload in the
next few days).


Cheers,
-- 
Cyril Brulebois (kibi@debian.org)            <https://debamax.com/>
D-I release manager -- Release team member -- Freelance Consultant

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