Re: fbcon scrolling madness + fbset corruption

3 messages, 3 authors, 2003-02-12 · open the first message on its own page

Re: fbcon scrolling madness + fbset corruption

From: Russell King <hidden>
Date: 2003-02-05 15:41:56

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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Passing the torch [was Re: fbcon scrolling madness + fbset corruption]

From: James Simmons <hidden>
Date: 2003-02-12 17:36:48

No one's commented on this yet.

James?
Sorry about the silence. The last month I have been devoting all my time 
to look for work. As of next month I will be out of money. Meaning no home 
to live in thus no internet. Because of this I like to have someone 
replace me. Antonino you have done some really great work. I like you to 
replace me to work with Geert to further the framebuffer layer. I still 
have a month left to live on so I will contribute as much as I can. Thank 
you.




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Re: Passing the torch [was Re: fbcon scrolling madness + fbset corruption]

From: Antonino Daplas <hidden>
Date: 2003-02-12 23:37:29

On Thu, 2003-02-13 at 01:46, James Simmons wrote:
quoted
No one's commented on this yet.

James?
Sorry about the silence. The last month I have been devoting all my time 
to look for work. As of next month I will be out of money. Meaning no home 
to live in thus no internet. Because of this I like to have someone 
This is unfortunate :-(
replace me. Antonino you have done some really great work. I like you to 
replace me to work with Geert to further the framebuffer layer. I still 
have a month left to live on so I will contribute as much as I can. Thank 
you.
I would like to help as much as I can with the development. However, I
won't be able to manage the BK repository since I don't have broadband
access (cannot recover from a failed bk clone).  It's best if you leave
this to someone who can.  

I'll be of better help if we can populate the CVS repository in
sourceforge?

Tony  




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