[Mageia-dev] What the hell is wrong with MGA2s suspend/sleep/hibernate?

Tue Nov 20 13:22:58 CET 2012

On 11/20/2012 12:30 AM, Johnny A. Solbu wrote:
+> In the last day, a simple typo have sendt my MGA2 desktop system so sleep. (The Sleep key is right next to the F12 key. I use F12 extensively.)
+> When it wakes up, there is NO network (ethernet) of any kind. Nothing!
+Assuming you're using KDE, KDE Power Management has been AFU for months 
+now.
+
+Originally, the problem was that if you disabled all use of 
+sleep/hibernate, dpms would get turned on with a random (usually short) 
+timeout, and the display would randomly (and often) go dark.
+
+This never got fixed, but new PM bugs have surfaced.  What I notice 
+currently is that PM has lost the ability to distinguish 
+AC/Battery/LowBattery.  I was seeing the display dim when on AC, even 
+though dimming was shut off for AC.  On a guess, I shut off dimming for 
+Battery, and the display brightened again.  After a while, it dimmed 
+again, so I shut dimming off for LowBattery, and it brightened up again 
+and hasn't dimmed since.
+
+So, my advice would be to disable Sleep/Hibernate on all power settings 
+and see if your symptom disappears.
+