On Sat, Oct 20, 2012 at 8:30 AM, Rolf Eike Beer <eike-kernel at sf-tec.de> wrote: > I have an older Laptop with this card in it: > > [ 0.813208] agpgart-intel 0000:00:00.0: Intel 945GM Chipset > [ 0.813284] agpgart-intel 0000:00:00.0: detected gtt size: 262144K total, > 262144K mappable > [ 0.814188] agpgart-intel 0000:00:00.0: detected 8192K stolen memory > [ 0.814377] agpgart-intel 0000:00:00.0: AGP aperture is 256M @ 0xc0000000 > > I observe the following strange behavior: if I start up the system (grub2, > openSUSE 12.1) I see the splash screen appearing shortly. In most cases it > will then disappear and the screen will become just black. This is not the > delay "X is loading but has not put anything on the screen", but it is much > earlier. I'm asked for a crypt password during bootup, which in most cases now > happens totally in the dark, i.e. no console messages at all, no prompt. > Booting just to runlevel 3 leaves me with a black screen but a functional > system. > > The strange thing is: sometimes (like 10%) things are just working, i.e. I > have console output. I've tested with 3.1.10 as well as 3.6.2 and both have > the problem. I've run a number of 2.6 kernels before on this system, but I do > not recall when the problem occured or which is one that definitely worked. > > Starting X will always get the screen back into working state, i.e. the system > is normally usable after startup, but it is just annoying to see nothing > during startup. > > Any hints, patches, whatever? Please attach drm.debug=0xe to your kernel cmdline, boot 3.6 and attach complete dmesg (up to the point where X makes something appear on the screen). -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch
