On Wed, May 27, 2026 at 09:12:56PM +0200, Yunseong Kim wrote: > Can you try this way? > > sudo usermod -a -G power $USER
Hello Yunseong, The group power does not exist on Debian. > # kernel parameter > i915.enable_psr=0 mem_sleep_default=deep snd_hda_intel.dmic_detect=0 > intel_idle.max_cstate=1 i915.enable_dc=0 > > Link: > https://www.linkedin.com/pulse/fixing-sleepsuspend-dell-latitude-54xx-linux-hemish-mononymous/ Unfortunately the post does not say which kernel was tested. It does not hurt to try but it look like a different issue. Cheers, Bill.
