XPost: linux.debian.bugs.dist 
 From: u.kleine-koenig@baylibre.com 
  
 Hello, 
  
 On Thu, Sep 04, 2025 at 03:38:32PM +0200, Philipp Klaus Krause wrote: 
 > Package: src:linux 
 > Version: 6.16.3-1 
 > Severity: normal 
 > X-Debbugs-Cc: debian-amd64@lists.debian.org, pkk@spth.de 
 > User: debian-amd64@lists.debian.org 
 > Usertags: amd64 
 > 
 > Dear Maintainer, 
 > 
 > with Linux 6.16.3, my system (MSI Bravo Laptop, Ryzen 4800H, Radeon RX 
 5500M) 
 > fails to suspend. Suspend works with Linux 6.12.38. 
  
 So this happens reliably with a (so far) 100% reproduction rate? 
  
 > I'm reporting this on the system while running 6.12.38-1. Below You will 
 find 
 > the relevant dmesg output from attemping to suspend using "systemctl 
 suspend" 
 > on 6.16.3 and, for comparison, the dmesg output from suspending on 6.12.38. 
  
 There are some changes to the amdgpu driver in newer stable version for 
 6.16.x, but none of them looks very relevant to your problem. 
  
 Can you please bisect the problem using the kernel packages available at 
 https://snapshot.debian.org/package/linux/ to find the first affected 
 version? 
 (That is, pick a version between 6.12.38 (current newest good) and 
 6.16.3 (current oldest bad) and test that. Depending on the outcome 
 update your notion of "current newest good" or "current oldest bad" and 
 repeat until you find two consecutive packages where one is good and the 
 other is bad. If that sketch of the procedure is too sparse for you to 
 follow, please ask for more details.) 
  
 The likely outcome is that the first broken version is the first package 
 for a new major release. In that case the followup is likely to continue 
 bisecting using git on the mainline history. Instructions will follow 
 then. 
  
 In the end make sure to uninstall all the old kernel versions again. 
 This might also be necessary in the middle of the bisection process if 
 space in /boot runs out. 
  
 Best regards 
 Uwe 
  
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