Hi! I'm using an Intel Atom Boeard with gma500 graphics as mediaplayer for my projector at home. If I boot the System with projector switched off, I don't get a fb0 device and because of that can't start the X-Server. With projector switched on: fonk@srv51:~$ lsmod | grep gma500 gma500_gfx 177067 2 drm_kms_helper 39831 1 gma500_gfx drm 236285 2 drm_kms_helper,gma500_gfx i2c_algo_bit 12751 1 gma500_gfx i2c_core 32420 5 drm,i2c_i801,drm_kms_helper,i2c_algo_bit,gma500_gfx video 17750 1 gma500_gfx fonk@srv51:~$ fonk@srv51:~$ fonk@srv51:~$ dmesg | grep fb0 [ 1.003497] simple-framebuffer simple-framebuffer.0: fb0: simplefb registered! [ 20.022483] fbcon: psbdrmfb (fb0) is primary device [ 20.837518] gma500 0000:00:02.0: fb0: psbdrmfb frame buffer device fonk@srv51:~$ dmesg | grep gma [ 19.271925] gma500 0000:00:02.0: irq 47 for MSI/MSI-X [ 19.272088] gma500 0000:00:02.0: GPU: power management timed out. [ 19.384596] gma500 0000:00:02.0: trying to get vblank count for disabled pipe 1 [ 19.388027] gma500 0000:00:02.0: trying to get vblank count for disabled pipe 1 [ 20.837518] gma500 0000:00:02.0: fb0: psbdrmfb frame buffer device [ 20.837523] gma500 0000:00:02.0: registered panic notifier [ 20.837775] [drm] Initialized gma500 1.0.0 2011-06-06 for 0000:00:02.0 on minor 0 fonk@srv51:~$ With projector switched off: fonk@srv51:~$ lsmod | grep gma500 gma500_gfx 177067 0 drm_kms_helper 39831 1 gma500_gfx drm 236285 2 drm_kms_helper,gma500_gfx i2c_algo_bit 12751 1 gma500_gfx i2c_core 32420 5 drm,i2c_i801,drm_kms_helper,i2c_algo_bit,gma500_gfx video 17750 1 gma500_gfx fonk@srv51:~$ fonk@srv51:~$ fonk@srv51:~$ dmesg | grep fb0 fonk@srv51:~$ dmesg | grep gma [ 13.023401] gma500 0000:00:02.0: irq 47 for MSI/MSI-X [ 13.023534] gma500 0000:00:02.0: GPU: power management timed out. [ 13.119732] gma500 0000:00:02.0: trying to get vblank count for disabled pipe 1 [ 13.120015] gma500 0000:00:02.0: trying to get vblank count for disabled pipe 1 [ 13.755821] [drm] Initialized gma500 1.0.0 2011-06-06 for 0000:00:02.0 on minor 0 fonk@srv51:~$ Also I don't know if it's possible to "rescan" for the projector while the system is running. At least if I try to remove and reinsert the kernel module, I get a kernel panic... Any help will be appreciated! Best regards, Frank
Can you attach the panic.. it shouldn't break on a reload but that bit of the code was always a shade iffy.
Created attachment 148111 [details] Module removal Hi, attached you'll find the log that shows what happens after I try to remove the module. I think kernel "panic" isn't the exact expression... is it called kernel "oops"?