XPost: linux.debian.bugs.dist 
 From: carnil@debian.org 
  
 Control: tags -1 + moreinfo 
  
 Hi 
  
 On Wed, Oct 08, 2025 at 12:52:47PM +0200, Sanjoy Mahajan wrote: 
 > Package: src:linux 
 > Version: 6.16.9-1 
 > Severity: normal 
 > File: /usr/lib/modules/6.16.9+deb14-amd64/kernel/drivers/gpu/drm/i915 
 > 
 > 
 > When I start chromium, the display (Xorg with no config file) hangs for 
 > 10 or so seconds, the screen goes black for a few seconds, and it 
 > returns.  This hang--blank--return cycle repeats twice more.  Then all 
 > is fine. 
 > 
 > Here are relevant lines from the dmessages.  (I've also attached the GPU 
 > error state.) 
 > 
 > It's an old laptop (Thinkpad T61), but this problem appeared only after 
 > a dist-upgrade a few days ago (while running kernel 6.12).  Maybe it's 
 > triggered by the upgrade of chromium (went from v140.0 to v141.0)? 
  
 So do I understand correctly that the kernel was no changed while 
 noticing this behaviour change? In this case please do roll back as 
 well first the chromium version. 
  
 If not please do downgrade to the preivous kernel you were running and 
 see if you can trigger the problem. If you only by chaning the kernel 
 then are able to trigger the problem in one version and not in the 
 other this might be a good start for a bisect of upstream versions. 
  
 Let's clarify first the above. 
  
 Regards, 
 Salvatore 
  
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