[Bug 2077396] Re: rtw89: reset IDMEM mode to prevent download firmware failure

This bug is awaiting verification that the linux-
realtime-6.11/6.11.0-1003.3~24.04.2 kernel in -proposed solves the
problem. Please test the kernel and update this bug with the results. If
the problem is solved, change the tag 'verification-needed-noble-linux-
realtime-6.11' to 'verification-done-noble-linux-realtime-6.11'. If the
problem still exists, change the tag 'verification-needed-noble-linux-
realtime-6.11' to 'verification-failed-noble-linux-realtime-6.11'.


If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.


See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: kernel-spammed-noble-linux-realtime-6.11-v2 verification-needed-noble-linux-realtime-6.11

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https://bugs.launchpad.net/bugs/2077396

Title:
rtw89: reset IDMEM mode to prevent download firmware failure

Status in HWE Next:
New
Status in linux package in Ubuntu:
Fix Committed
Status in linux-hwe-6.8 package in Ubuntu:
Invalid
Status in linux-oem-6.11 package in Ubuntu:
Invalid
Status in linux source package in Jammy:
Invalid
Status in linux-hwe-6.8 source package in Jammy:
Fix Released
Status in linux-oem-6.11 source package in Jammy:
Invalid
Status in linux source package in Noble:
Fix Released
Status in linux-hwe-6.8 source package in Noble:
Invalid
Status in linux-oem-6.11 source package in Noble:
Fix Released
Status in linux source package in Oracular:
Fix Released
Status in linux-hwe-6.8 source package in Oracular:
Invalid
Status in linux-oem-6.11 source package in Oracular:
Invalid

Bug description:
[Impact]
After reboot from UEFI HTTPs boot, RTL8851BE wifi were not working due to the firmware download fail.

[Fix]
Backport the Realtek patch from linux-next:

80fb81bb46a5 wifi: rtw89: 885xb: reset IDMEM mode to prevent download
firmware failure

[Test Plan]
1. Install Ubuntu image and boot into the OS，then power off system.
2. power on SUT, press F12 to choose UEFI HTTPs Boot.
3. wait 10 seconds and when see the available wireless networks，press Ctrl+Alt+Delete
4. Boot to OS, check if the WiFi function works

[Where problems could occur]
May cause regression.

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