Source: linux Version: 3.2.41-2 ATI Radeon 9100 is an old R200-based card, which is expected to work fine with KMS without non-free firmware installed [1], and indeed it does, except one thing: the system freezes during hibernation. After I execute pm-hibernate, the monitor goes into stand-by mode, the HDD LED stays active for about 10 seconds, just like during normal hibernation process, then it switches off... and nothing happens. Pressing Ctrl-Alt-Del and Alt-SysRq-B has no effect, so the hardware reset button is the only option available. This leads to an inevitable loss of all unsaved data with a risk of filesystem corruption. The system hibernates and resumes just fine, if booted with either or both: - firmware-linux-nonfree package installed; - radeon.modeset=0 kernel option. In both cases the monitor doesn't go into stand-by mode during hibernation and stays active until poweroff.
[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=697229 -- Алексей Шилин
