https://bugs.freedesktop.org/show_bug.cgi?id=75127
--- Comment #24 from Sandeep sandy.8925@gmail.com --- Oops, typo in last comment. When I turn off the GPU using:
echo OFF > /sys/kernel/debug/vgaswitcheroo/switch
and then try to turn on the GPU using:
echo ON > /sys/kernel/debug/vgaswitcheroo/switch
GPU reset messages are printed in the kernel.
(e.g) 7213.870052] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 7213.870055] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing E2F6 (len 2585, WS 4, PS 4) @ 0xE9E0 [ 7213.904826] [drm:radeon_dp_link_train_cr] *ERROR* clock recovery reached max voltage [ 7213.904827] [drm:radeon_dp_link_train_cr] *ERROR* clock recovery failed [ 7567.068285] [drm:atom_op_jump] *ERROR* atombios stuck in loop for more than 5secs aborting [ 7567.068289] [drm:atom_execute_table_locked] *ERROR* atombios stuck executing E2F6 (len 2585, WS 4, PS 4) @ 0xE9E0 [ 7567.103047] [drm:radeon_dp_link_train_cr] *ERROR* clock recovery reached max voltage [ 7567.103048] [drm:radeon_dp_link_train_cr] *ERROR* clock recovery failed