Re: [BK fbdev updates]

["Bom Luzares-Daplas" <bombom@oak.compass.com.ph>]

-----Original Message-----
From: James Simmons <jsimmons@infradead.org>
To: Antonino Daplas <adaplas@pol.net>
Cc: Linux Fbdev development list <linux-fbdev-devel@lists.sourceforge.net>
Date: Friday, November 08, 2002 8:03 AM
Subject: Re: [Linux-fbdev-devel] [BK fbdev updates]


>
>> > fbcon_switch has to be rewritten. I'm going threw the process of
cleaning
>> > up the upper fbcon layer. Its such a mess. Yuck!!!
>> Thank goodness for this :)  I was already thinking of adding an 'Option
>> Usefbdev' for the xfree86 driver.
>
>There is already a option like that for XFree86.
Yes, but not all drivers support it, I think only one of the ATI's.

>
>> > Yes!!! Of course there is the issue is the framebuffer that actual one
>> > used for vgacon or is it independent, thinking multihead here.
>> >
>> I was trying to confirm if vgacon should restore its own state or not.
>>
>> But this one is neat :)  I added VGA save/restore state routines to
>> fb_open() and fb_release().  I was able to boot to a VGA console, fired
>> up XFBDev and DirectFB and exited back again to a VGA console.  DirectFB
>> came back without problems, XFBDev needed a console reset.
>
>WOW!!! That is way to awesome. I have always wanted to see that actually
>work.
>
Yeah, I love it too :)


>> I guess the save/restore state routines will only be needed for graphics
>> card with a VGA core.  I think multiple graphics card or multi-head
>> systems will not be affected since the driver will only be
>> saving/restoring its own hardware anyway.
>
>Correct. One thing I do like is when you insmod a driver it doesn't change
>the mode. For example for the neomagic fbdev driver I compiled as a module
>and then insmod while using vgacon. Its didn't change the graphics mode so
>I was able to find a nasty bug. I could change the video mode once I did a
>set_var via userland.
>
Right, insmoding fbdev does not change the mode, at least that's how the
i810fb driver works.
Only upon explicit mode change will it do so.

>> config FONT_8x16
>> bool "VGA 8x16 font" if FBCON_FONTS
>> depends on FB && SGI_NEWPORT_CONSOLE=y
>>
>> I changed the '&&' operator to '||' in my case.
>
>Applied.
>
>> > > 5.  The cfb_* drawing functions still behave erratically, especially
in
>> > > emacs.  Geert has made some versions that work correctly for me.
This
>> > > was discussed in a thread sometimes ago.
>> >
>> > Where are the patchs. I like to incorporate them into BK.
>> The patch exceeded 40K uncompressed, so here's a link:
>>
>> http://i810fb.sourceforge.net/draw_ops.diff.gz
>>
>> The diff is against 2.5.45 plus your fbdev.diff.
>
>It didn't work. Can you send me those files direct. I like to apply them.

The patch did not, or unable to download?  I think Sourceforge had a
scheduled outage.
You can try again.  Currently, I'm experiencing a hardware failure, I'm
currently doing this in
a Windows box. So I won't be able to send it to you for some days yet.

Tony




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