I have managed to get an HP Envy with AMD Volcanic Island GPU suspending when the lid shuts and coming out when it's opened. However, when it does out of hibernate is ridiculously slow to load programs and when they do load they run more slowly than after a "fresh" boot.

Is there any information I could supply or find that might help track down what is doing this please? I've Googled this and found instance of computers taking a long time to come out of suspend but that's not the issue here. It comes out of suspend quite quickly, but the system is very slow afterwards.

Running top command might be a start. http://www.tecmint.com/12-top-comman...ples-in-linux/

Some distro's have a gui system resource monitor too. Many other performance metrics are available.

Others may have some suggestions too.

If you have a menu item to suspend, have you tested it in comparison with suspend by closing the lid? I suspend my Mint computer (Intel i3 processor) from the E17 menu frequently, and, upon my opening the lid, it resumes functionality seamlessly. Full disclosure: I do not habitually suspend by closing the lid.

By the way, what distro/version are you using?

I would guess it's still in one of lower power (sleep) states.

@jefro, top was the first thing I tried. Nothing is hogging resources. It takes ages to load programs which would, I think, suggest it's really slow access to the HDD. If the browser is already launched it runs reasonably well. If Lire Office is running it takes, for example, a while to bring up the save dialogue.

@frankbell, I have tried pm-suspend from the command line and that is the same.

@syg00, that's an interesting idea. How do you find out whether it still is a lower power mode?

I'm on Mageia 6 STA1 BTW.

Depends on what you have installed; maybe these might help. Run on good and bad systems and compare.

I did this before and after suspend:

cat /proc/cpuinfo | grep "MHz"

cpu MHz : 1796.598
cpu MHz : 1796.598
cpu MHz : 1796.598
cpu MHz : 1796.598

The results were identical both times, so I don't think it's the CPU. That is possibly borne out by the fact that it's more to do with the time it takes to load a program. Once it's loaded it's not so bad. For example, I can play a video, it tales VLC ages to boot but once it's there it plays flawlessly.

This seems to point to an issue accessing the SATA interface maybe.