On a recent occasion, after upgrading to Linux 2.4.27, the only differences between the output fresh after boot and after restarting X were these -(II) GLINT(0): FIFO_CONTROL: 0 +(II) GLINT(0): FIFO_CONTROL: 10000 -(II) GLINT(0): SCISSOR_MODE: 2 +(II) GLINT(0): SCISSOR_MODE: 0 Note that this is on GLINT(0); GLINT(1) stays exactly the same. I'm confused.