On Lenovo's website, they state that this BIOS updates AMD PI 1004 patch D to fix S0i3 issue. Lenovo seems to update the BIOS DTCN20WW (V1.06) for ideapad 5 14' today. Try to use hibernate option rather than suspend, since machine does support S4 suspend to disk mode.Try to patch ACPI DSTS table, so that we can enable deep S3 suspend to memory mode.Keep using S0iX modern standby mode, and try to fix the 'no response while resume' problem.

Summarize the potential solution to suspend problem: So maybe someone can help this part to patch the ACPI. Maybe we can try to patch a few line of code to get S3 works.īut my knowledge to ACPI patching is limited, I have tried several modification and just can't get it work. But for some reasons, the S3 just doesn't show up in support suspend mode list. I have check this machine's ACPI DSDT, seems that it does include S3 suspend mode in Lenovo's original setting. I found that some Lenovo X1 Carbon users have done the ACPI patch to fix the same S3 suspend problem ( source), it is done by editing ACPI DSDT table. So maybe we need to enable S3 in ACPI DSTS setting. It seems that there is no S3 suspend (suspend to memory) support available.

Then I check dmesg | grep ACPI | grep supports, it shows ACPI: (supports S0 S4 S5). But after I edit grub file with mem_sleep_default=deep, it still remains unchanged in mode. From my past experience with Dell XPS laptop (which also has this kind of suspend no response when resume issue), it seems that I need to change to suspend to memory mode deep (which is S3 deep suspend). I think this is the default S0 suspend mode (S0iX modern standy mode). Originally I use Pop OS 20.04 (based on Ubuntu), but I then try Manjaro Gnome, the suspend issue is still there.Īfter checking cat /sys/power/mem_sleep, it shows that I'm in. The BIOS version is DTCN18WW, and I have updated kernel to 5.7.7. My machine is Lenovo ideapad 5 14' (with AMD 4600u).

But if I close the laptop lid and let it suspend for like 10 minutes, when I reopen the laptop lid, the screen will still in black and have no response. If I manually suspend for like 1 minute, it can resume properly.

Lenovo ideapad brightness issue