lkml.org 
[lkml]   [2002]   [Mar]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Screen corruption in 2.4.18
On Sat, Mar 23, 2002 at 10:06:47AM -0600, Steven Walter wrote:

> > Don't get it wrong. I *do have* an VT8365. VT8365 (ProSavage KM133) is
> > somewhat the same as VT8363 (KT133), except that 8365 has an integrated
> > Savage graphics card (which *I use*).
>
> Aha... I see. And in thinking about it, I realize that my motherboard
> also has this integrated graphics card. Perhaps this is the difference?
> Unfortunately, it seems they both report the same PCI id, so I don't
> really know of a way to differentiate them.

I can verify Danijel's report -- I have the same setup
(VT8363+VT8353, a.k.a. ProSavage KM133), and I experience the
same screen corruption. Clearing only bit 7 of register 55 fixes
the problem; clearing bits 5 and 6 causes the video to go all
borky. There's been another thread about it on lkml over the
last week or so.

> I looked at that datasheet, and the datasheet for the 8363. Both said
> not to program offset 55, and both said the bits we are clearing are
> "reserved." Perhaps we should contact VIA directly, tell them the
> problem we're having with their current fix, tell them our theory, and
> ask if we're right.

Heh, a VIA contact who knows what the hell that register does
would be nice :).

In the meantime, I'd probably suggest a patch which looks for
clears only bit 7 of Rx55 if an 8363 and an 8365 is found. I'll
whip one up later today.


--
#ozone/algorithm <ozone@algorithm.com.au> - trust.in.love.to.save
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:25    [W:0.490 / U:0.112 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site