Hello, I currently have a problem on mint 22 kernel 6.8.0.51 on a Dell latitude 5490. I would say that 8 times out of 10 it does not come out of sleep, I have to force shutdown. The problem occurs especially when I click on started/sleep. I just did the latest bios update, no change.
#Sleep Dell latitude 5490
cloud summit
brazen depot
Did you try waking it with a single short press on the power button?
cloud summit
Did you try waking it with a single short press on the power button?
Yes I tried, so I think the problem is the standby mode not the exit from standby, the power button is always on and I have to force the reboot by a long press
brazen depot
There are two possible modes to do this, Sleep and Hibernate. The latter only becomes available if you have sufficient swapspace for all data in RAM, so you may need to increase swap. If that doesn't work reliably, either, welcome to the club. I have an HP that categorically refuses to sleep/wake properly. Some laptops are just an assortion of firmware bugs that get fixed in driver... but only in Windows.
cloud summit
There are two possible modes to do this, Sleep and Hibernate. The latter only be...
ah I understand, but in standby the ram does not empty normally? I am not sure if I have swap to confirm. on the other hand I have 16gb of ram and in general I have nothing running before going into standby, I have at least 90 95 percent available. normally everything stays in ram until waking up right? swap is especially in case of saturated ram or close to filling?
brazen depot
Swap has two uses here: Generally, it is used by the kernel to set aside some things from RAM and load them back in. With enough RAM, it is technically not needed, but still advised to have for rather complicated reasons. Mint defaults to just 512MB of swap.
The second use is writing all memory content to swapspace, so the system can stop powering the RAM, for a deeper sleep state. That is Hibernate, and that is why you will probably need anywere from 3-8GB of swap to do it. Since some RAM is always just cache, you will not need a full 16GB of swap. But if you have very memory-intensive usage, perhaps go to 12GB. Hibernate should show up as an option in the shutdown options when there is enough swapspace available.
cloud summit
Swap has two uses here: Generally, it is used by the kernel to set aside some th...
Sorry for the late reply, I'll see if I can modify the partition to test or try with another pc
Or disable swap memory to force the system to put in ram ?