Messages in this thread | | | Date | Wed, 5 Feb 2003 15:51:27 +0000 | From | Russell King <> | Subject | Re: fbcon scrolling madness + fbset corruption |
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No one's commented on this yet.
James?
On Sun, Feb 02, 2003 at 07:57:44PM +0000, Russell King wrote: > This doesn't appear to solve the ywrap problem - I still get > places where the screen doesn't scroll. I decided to write a > small program to dump out the contents of fb_var_screeninfo, and > where stuff goes horribly wrong: > > bash-2.04# ./tst > Visible: 1280x1024 > Virtual: 1280x1632 > BPP : 8 > Offset : +0+2352 > bash-2.04# ./tst > Visible: 1280x1024 > Virtual: 1280x1632 > BPP : 8 > Offset : +0+2392 > > Up to the point where it goes wrong: > > bash-2.04# ./tst > Visible: 1280x1024 > Virtual: 1280x1632 > BPP : 8 > Offset : +0+528 > bash-2.04# ./tst > Visible: 1280x1024 > Virtual: 1280x1632 > BPP : 8 > Offset : +0+568 > bash-2.04# ./tst > Visible: 1280x1024 <--- this is the last line on the screen > Virtual: 1280x1632 > BPP : 8 > Offset : +0+608 > bash-2.04# > > So it looks like something isn't limiting the yoffset in the generic > console layer; an xoffset of 2392 when the maximum virtual Y is 1632 > is just nonsense. > > I also noticed an additional problem with fbcon: if I change the > resolution using fbset, the change occurs, except I end up with > corrupted mess on the screen (the reminents of the original display.) > The shell prompt is nowhere to be seen. > > Hitting ^L clears the screen and then the shell prompt is visiable.
-- Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux http://www.arm.linux.org.uk/personal/aboutme.html
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