Am Freitag, den 15.01.2010, 17:32 +0100 schrieb Bruno Kleinert: > Maybe there's something in the logs on my amd64/Radeon system. I'll look > at these files tomorrow. I had some annoying trouble to suspend the machine. To make things short: For the whole weekend I only got two cycles of suspend -> resume, as the box locks up when the system is snapshotted...
But I found out something interesting: I'm using GNOME as desktop environment, so I'm also using gnome-screensaver. Quite funny: If I make GNOME *not* start the gnome-screensaver, then, of course, the screen doesn't get locked by the gnome-screensaver when the machine is suspended and resumed. But then I get *no* black screen after the resume, and also switching to a text console shows up text! Maybe it's some crazy bullshit, but I have a guess where this could come from: ;) gnome-screensaver fades the display to black when it gets active, maybe this is done by manipulating color/contrast/whatever settings (?). I guess so, because the text "snapshotting the system" at the text console is often very dark and sometimes invisiable after gnome-screensaver got active to lock the screen before the machine starts the suspend procedure. Now, if the machine gets resumed, maybe these color/contrast/whatever settings don't get successfully restored or restored at all. It's a stupid guess, but maybe it points someone into the right correction what causes this regression bug. The bug appears since xserver-xorg-core 2:1.7.4-1 and its dependencies is installed on that system. Btw.: My first attempt to downgrade mesa packages back to 7.6.1-1 did not fix the bug as it did on my notebook. But let's better leave that out to avoid confusion. The current workaround to avoid the black screen after resume is to disable gnome-screensaver. Do you have any hints where I should have a closer look at? I'd like to have a look at these color/contrast/whatever settings of the X server and/or the graphics hardware, to compare them before and after a resume if they are changed. But I have no idea how to obtain these settings from the X server. Do you know to I can access them? Cheers - Fuddl
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