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From: "Antonino A. Daplas" <adaplas@hotpop.com>
To: linux-fbdev-devel@lists.sourceforge.net,
	Francois <f.taiani@computer.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [CONFIG_FB_NVIDIA] Mirrored characters on the console on a G5
Date: Thu, 14 Apr 2005 13:51:19 +0800	[thread overview]
Message-ID: <200504141351.19243.adaplas@hotpop.com> (raw)
In-Reply-To: <1113298311.5465.159.camel@mac-francois>

On Tuesday 12 April 2005 17:31, Francois wrote:
> Dear linux-fbdev team,
>
> I've just compiled a new 2.6.12-rc2 kernel for my PowerMac G5. I've got
> the following problem: I get "reversed" characters on the console if I
> use CONFIG_FB_NVIDIA in the kernel. For instance, instead of an E, I get
> a
>
> xxx
>   x
>  xx
>   x
> xxx
>

Only characters are mirrored, and not the entire row (ie, row starts at the left
side, and not at the right)?

Can you try fbset -accel false and see if it helps?

If it does, this is a problem with nvidia's imageblit function which converts
big-endian bitmaps to little endian?  Perhaps the help reverse_order() is not
needed for your arch.  Can you comment out calls to reverse_order() in
drivers/video/nvidia/nv_accel.c?


> Switching CONFIG_FB_NVIDIA off eliminates the problem. My G5 contains a
> GeForce FX 5200 Nvidia Card.

I think rivafb supports this particular chipset, but without acceleration.

Tony




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  reply	other threads:[~2005-04-14  5:52 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-04-12  9:31 [CONFIG_FB_NVIDIA] Mirrored characters on the console on a G5 Francois
2005-04-14  5:51 ` Antonino A. Daplas [this message]
2005-04-14 16:52   ` Francois
2005-04-15  3:07     ` Antonino A. Daplas
2005-04-20 17:21       ` Francois
2005-04-22  2:50         ` Antonino A. Daplas
2005-08-17 16:04           ` Francois Taiani

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