Hi Bill, On 5/23/26 8:22 PM, Bill Allombert wrote: > On Sat, May 23, 2026 at 06:13:25PM +0200, Yunseong Kim wrote: >> Hello again Bill, >> >> On 5/23/26 14:09, Bill Allombert wrote: >>> On Sat, May 23, 2026 at 02:02:06PM +0200, Yunseong Kim wrote: >>>> Hi Bill, >>>> >>>> On 5/23/26 13:48, Bill Allombert wrote: >>>>> On Sat, May 23, 2026 at 01:34:34PM +0200, Yunseong Kim wrote: >>>>>> Your shared file is missing important information for approaching this >>>>>> issue. >>>>> >>>>> Sorry, it took me some time. >>>>> Please find the data for 6.12.88+deb13, which suspends fine but fails >>>>> ater resume. >>>>> >>>>> Cheers, >>>> >>>> No problem, Please take your time. As a fellow Dell user, it’s an >>>> interesting and pesky bug. >>>> >>>> If you can share the kernel log and the output of lsmod, I can check the >>>> relevant >>>> changes/patches in the stable kernel release version and compare the >>>> differences. >>> >>> This should be in the tarball I attached in the previous email. >> >> Thank you, It is really helpful. >> >> Could you try it on the problematic kernel? >> >> # Unload bluetooth kernel driver >> modprobe -r btusb btintel >> >> # your scenario >> echo disk > /sys/power/state suspends the system. > > Well the system suspends, resumes then halts immediately after resuming. When > I reboot it, > it resume agains then halt, etc. > > But at least it does not display 'FAILED' before halting.
Thanks for the testing! Can you try this way? sudo usermod -a -G power $USER # 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/ > I join the log. > > Cheers Best regards, Yunseong
