The startup messages for uvesafb were: Nov 16 22:19:05 debian kernel: [ 23.476272] uvesafb: NVIDIA Corporation, nv44 Board - p382h1 , Chip Rev , O EM: NVIDIA, VBE v3.0 Nov 16 22:19:05 debian kernel: [ 23.508283] uvesafb: protected mode interface info at c000:d3a0 Nov 16 22:19:05 debian kernel: [ 23.508288] uvesafb: pmi: set display start = c00cd3d6, set palette = c00cd440 Nov 16 22:19:05 debian kernel: [ 23.508291] uvesafb: pmi: ports = 3b4 3b5 3ba 3c0 3c1 3c4 3c5 3c6 3c7 3c8 3c9 3cc 3ce 3cf 3d0 3d1 3d2 3d3 3d4 3d5 3da Nov 16 22:19:05 debian kernel: [ 23.511052] uvesafb: VBIOS/hardware doesn't support DDC transfers Nov 16 22:19:05 debian kernel: [ 23.511056] uvesafb: no monitor limits have been set, default refresh rate wil l be used Nov 16 22:19:05 debian kernel: [ 23.516863] uvesafb: scrolling: ypan using protected mode interface, yres_virt ual=6144 Nov 16 22:19:05 debian kernel: [ 23.743379] Console: switching to colour frame buffer device 128x48 Nov 16 22:19:05 debian kernel: [ 23.762168] uvesafb: framebuffer at 0xc0000000, mapped to 0xf8b80000, using 24 576k, total 262144k Nov 16 22:19:05 debian kernel: [ 23.762171] fb0: VESA VGA frame buffer device
The only difference I see is that "no monitor limits" because I had the monitors turned off. I run a 2-seat system and normally gdm brings up the 2 monitors, but not this time: it brought up only one, so I had to restart gdm. Unfortunately I did not save the Xorg logs of that startup. Hugo