On 28 July 2011 16:55, Tom Gundersen <teg@xxxxxxx> wrote: > Hi Jason, > > On Thu, Jul 28, 2011 at 5:16 PM, Meyithi <mail@xxxxxxxxxxx> wrote: > > Does anybody know the difference between the quiet kernel parameter and > > loglevel=4 parameter? > > > > All of the info I can find states that they should be identical, and > > /proc/sys/kernel/printk is identical. > > They should be identical. Just look at the code: > < > http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=blob;f=init/main.c;h=d7211faed2adfb295caf46bbb9c70835f622eabe;hb=HEAD#l201 > >. > The quiet parameter just sets loglevel=4. Unless I'm missing > something. > > > I am however getting framebuffer > > corruption during boot when using quiet which doesn't occur when using > > loglevel=4. > > This is very odd. Any more info on this? Screenshots? Can you see a > difference in dmesg? > > Cheers, > > Tom > Apologies for the format of this post, was supposed to be a draft until I gathered a bit more info, but I accidentally sent the first message and was hastened. Anyway, there is a few things I'm looking into, firstly I'm using kernel26-ck with syslinux, and I also have intel_agp and i915 in mkinitcpio.conf for an earlier framebuffer. Using quiet seems to switch (or attempt to switch) to framebuffer earlier, my entire screen will go grey, then switch to black with a white box in the top left which looks to be 640x480 and then the boot messages will overwrite the white box and the system will commence to boot. Using loglevel=4, this does not occur. So there must be some difference somewhere, and although it's just initial framebuffer corruption it's fired up my curiosity. I've got a lot to try in order to pin this down, was just hoping somebody knew of any differences between quiet and loglevel=4 to save the fiddling. -- Jason Steadman http://www.meyithi.com/ http://twitter.com/meyithi
