More info: I have just realized I cannot switch to console mode with Alt + Ctrl + F1. I got the error:
[ 1178.504192] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 1sec aborting [ 1178.504198] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing CEA6 (len 62, WS 0, PS 0) @ 0xCEC2 [ 1178.641188] Skipping EDID probe due to cached edid The origin seems to be the frame buffers: [ 16.193573] Console: switching to colour frame buffer device 170x48 [ 16.197882] fb0: radeondrmfb frame buffer device [ 16.278582] fb1: inteldrmfb frame buffer device The X system and kernel are using i915 module but the console it's attached to the radeon device. Any ideas of how can I disable one or the other? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/312756 Title: MASTER: support graphics card hot switch -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs