Hi all,
I have a clean install of a 13.2 on a new laptop (AMD A10, Radeon HD 8650G). System works great; for a week or two I used the default graphic driver, but I could see the performance was off. I installed the proprietary one (gflrx) and the system is faster and improved graphics.
Since then I cannot recover the system after sleep/hibernation; the system gets stuck on black screen
any hints/ideas?
Try to set SLEEP_MODULE=“kernel” in /usr/lib/pm-utils/defaults and/or HIBERNATE_RESUME_POST_VIDEO=“yes”.
If the file does not exist, make sure you have pm-utils installed (should be by default).
What desktop are you using?
If KDE, does it work if you disable compositing before sleep/hibernation? (Shift+Alt+F12)
thanks, will try tonight and update the post (currently at work)
Tried all of the above,
the problem persists…
yes, I use KDE
Well, unfortunately this seems to be a wide-spread problem with the proprietary drivers (also nvidia)…
Unfortunately there’s not really a fix in sight AFAIK. E.g. the nvidia developers blame the kernel, while the kernel developers blame nvidia, for not doing things “properly”.
Try to disable desktop effects completely in “Configure Desktop”->Desktop Effects, does that help?
HI Wolfi,
I am retrying the default radeon driver (removed fglrx) -
so far so good…
thanks for the support!
Probably not the worst choice… 
AMD is actively supporting the development of the opensource radeon driver since years, and in some benchmarks (depending upon the actual chipset and Linux/Kernel/Xorg versions) it’s doing even better than the proprietary driver…
So if you don’t really have a good reason reason to use fglrx, you probably shouldn’t IMHO.
(nvidia is a different story though…)
This is true - and I noticed that with use of Opensuse
since 2012 I make sure all my new PCs do not have nvidia cards - with preference on the AMD one (I tried the intel which worked fine with minor bugs, such as no screen dimming etc)