From: John Zielinski <hidden> Date: 2004-06-19 02:20:25
I'm just wondering why the clearing of video memory was added to
radeonfb_pci_register? The memory still belongs to vgacon at this
point. There are a few other problems with this: there is a noticable
delay while the screen is totaly blank, vgacon can't save the text
screen to the shadow buffer, and all further output until the takeover
is invisible (vga font is wiped) so an oops here wouldn't be readable.
John
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Il Fri, Jun 18, 2004 at 10:20:17PM -0400, John Zielinski ha scritto:
*This message was transferred with a trial version of CommuniGate(tm) Pro*
I'm just wondering why the clearing of video memory was added to
radeonfb_pci_register?
AFAIK without that radeonfb will display the content of the memory as
random garbage.
Luca
--
Home: http://kronoz.cjb.net
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Linus Torvalds
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From: John Zielinski <hidden> Date: 2004-06-19 19:46:30
Kronos wrote:
AFAIK without that radeonfb will display the content of the memory as
random garbage.
I does fix it but the side effects I listed make it a bad idea,
especially the fact that the radeonfb driver doesn't own the memory
yet. Tony has posted a proper fix for the problem so whoever put this
in, please remove it.
John
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From: Benjamin Herrenschmidt <benh@kernel.crashing.org> Date: 2004-06-23 16:00:18
On Fri, 2004-06-18 at 21:20, John Zielinski wrote:
I'm just wondering why the clearing of video memory was added to
radeonfb_pci_register? The memory still belongs to vgacon at this
point. There are a few other problems with this: there is a noticable
delay while the screen is totaly blank, vgacon can't save the text
screen to the shadow buffer, and all further output until the takeover
is invisible (vga font is wiped) so an oops here wouldn't be readable.
I added that to fix reports of users complaining they had garbage displayed
on boot. I didn't think about the interaction with vgacon (see, I have
absolutely no legacy hardware doing crappy VGA mode ;)
Maybe that should be reversed ....
Ben.
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From: Benjamin Herrenschmidt <benh@kernel.crashing.org> Date: 2004-06-23 16:04:14
On Sat, 2004-06-19 at 14:46, John Zielinski wrote:
Kronos wrote:
quoted
AFAIK without that radeonfb will display the content of the memory as
random garbage.
I does fix it but the side effects I listed make it a bad idea,
especially the fact that the radeonfb driver doesn't own the memory
yet. Tony has posted a proper fix for the problem so whoever put this
in, please remove it.
Provided Tony fix gets upstream instead of beeing lost for 6 more
monthes in the fbdev tree ...
Ben.
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On Wed, 23 Jun 2004, Benjamin Herrenschmidt wrote:
On Sat, 2004-06-19 at 14:46, John Zielinski wrote:
quoted
quoted
AFAIK without that radeonfb will display the content of the memory as
random garbage.
I does fix it but the side effects I listed make it a bad idea,
especially the fact that the radeonfb driver doesn't own the memory
yet. Tony has posted a proper fix for the problem so whoever put this
in, please remove it.
Provided Tony fix gets upstream instead of beeing lost for 6 more
monthes in the fbdev tree ...
Nah, Tony is doing his best to get stuff merged with Andrew...
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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