On Mon, 31 May 2010 20:04:53 -0500 Steven P. Ulrick wrote: > What is "nomodeset" SUPPOSED to do? The newest kernels have (God knows why) moved the video mode setting into the kernel (the only explanation I've ever seen for why this is a good idea is that the monitor goes "click" less often that way). So all the programming of the hardware specific clock rates and registers on the video card happen in the kernel during initial boot rather than in the X driver when the X server starts. (And the X driver developers hate having to deal with both possibilities, so they'd really like no one to ever use nomodeset). The "nomodeset" kernel parameter turns off this feature and leaves the system BIOS video setting in place during boot. Because the kernel may need the video driver loaded to do mode setting, the nouveau driver is probably included in the initrd image, hence the need for both "nomodeset" and "rdblacklist=nouveau" to keep the kernel out of the video mode business so the binary nvidia driver can then do mode setting when X starts with no conflicting drivers loaded in the kernel. That, at least, is my summary of the obscure bits of information I've absorbed over time (maybe incorrectly) about this mode setting issue. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
