Comment 5 for bug 523027

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Loïc Minier (lool) wrote : Re: DRM Framebuffer crash - fail GDMThinkpads with Intel X4500HD

I get this as well on a Thinkpad X301 with a X4500HD card, but not on 100% of boots; on some boots things just work.

The symptoms are:
you get a mouse on a black screen, but the cursor is blinking on the top left; after a couple of seconds I get some kernel messages from sda or sdb in the top left where the cursor was; pressing some keys results in weird chars being written at the top left too. Pressing Ctrl-Alt-F1 goes back to a clean tty1, and pressing Ctrl-Alt-F7 goes back to a clean gdm. If I try to login from that gdm, I see:
Feb 25 09:12:35 bee kernel: [ 28.609195] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id
then gdm respawns the login screen, and I can login normally.