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Re: secondary graphic card has no memory
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From: Johannes G. <joh...@gm...> - 2004-09-22 21:35:26
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Dear list members,
thank you very much for your replies!
Because Vojtech Pavlik wrote that it has to do
with x86-64 mainboards I installed on the same hardware
(AMD64+K8S8XMainboard+NVidiaFX5200+MGAMillenium)
2.4.27 kernel for i386 architecture with Jean-Daniel Paugets
patch. lspci -v showed:
00:0a.0 VGA compatible controller: Matrox Graphics, Inc. MGA 2064W
[Millennium] (rev 01) (prog-if 00 [VGA])
Flags: stepping, medium devsel, IRQ 5
Memory at 40000000 (32-bit, non-prefetchable) [disabled]
[size=16K]
Memory at 40800000 (32-bit, prefetchable) [disabled] [size=8M]
Expansion ROM at ffff0000 [disabled] [size=64K]
...
01:00.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX
5200] (rev a1) (prog-if 00 [VGA])
Flags: bus master, 66Mhz, medium devsel, latency 248, IRQ 11
Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
Memory at f0000000 (32-bit, prefetchable) [size=128M]
Expansion ROM at feae0000 [disabled] [size=128K]
Capabilities: [60] Power Management version 2
Capabilities: [44] AGP version 3.0
I wrote
echo 1 > /proc/bus/pci/hackvideo
and started the second XServer from
an xterm on the first XServer:
X :1 -layout MGA vt17
which gave me the error
(EE) MGA(0): Cannot read V_BIOS
I must point out that I used XFree86 4.0.3.1 from
SuSE 9.0 distribution without prefbusid-patch.
Nothing was displayed on the second monitor and I
had to kill -9 the second XServer from another xterm,
it did not react on <Ctrl-Alt-Backspace> from the second
keyboard.
When I stoped all XServers and started only one Xserver with
X -layout MGA
from the console both monitors went blank, the leds on my
keyboard did not work any more and I had to turn the power off.
Yours,
Johannes Gajdosik
-----------------------------
Ludovic Pollet wrote:
> Does lspci returns the same before and after you start the X server ?
Yes, it does.
----------------------------
Petr Vandrovec wrote:
> > When I start X on the MGA I get the error
> > (WW) ****INVALID MEM ALLOCATION**** b: 0xffffc000 e: 0xffffc000
> > correcting
> > (EE) MGA(0): No valid MMIO address in PCI config space
> > (EE) Screen(s) found, but none have a usable configuration.
>
> If you'll build matroxfb into kernel, it should force kernel to
> allocate
> MMIO regions for Matrox card, and it will also take a care about
> initializing
> matrox's hardware during bootup (X do not contain that code).
Im sorry but make menuconfig tells me:
Support for frame buffer devices (NOT IMPLEMENTED)
with the 2.4.27 bruby kernel.
But I will try 2.6.8.1 later.
------------
Aivils wrote:
>> I have kernel 2.4.27 for AMD64 (xf86_64) and use Jean-Daniel .
>> Paugets
>> patch which I have slightly modified by replacing "i386" with
>> "x86_64"
>> where it seemed appropriate to me.
>
> --- arch/x86_64/kernel/setup.c~ 2004-08-19 14:40:13.000000000 +0300
> +++ arch/x86_64/kernel/setup.c 2004-09-22 09:46:59.952898432 +0300
> @@ -577,7 +577,7 @@ void __init setup_arch(char **cmdline_p)
> iommu_hole_init();
> #endif
>
> -#ifdef CONFIG_VT
> +#if 0
> #if defined(CONFIG_VGA_CONSOLE)
> conswitchp = &vga_con;
> #elif defined(CONFIG_DUMMY_CONSOLE)
Thanks very much for the patch. I had to remove the whole block
in order to make it compile.
>> I had to hack a little on IA32
>> support, but finally the result was quite ok for me.
I wanted to ask you about arch/x86_64/ia32/ia32_ioctl.c.
I did the following:
----------------------------------------------------
static int do_fontx_ioctl(unsigned int fd, int cmd, struct
consolefontdesc32 *user_cfd, struct file *file)
{
struct consolefontdesc cfdarg;
struct console_font_op op;
int i, perm;
perm = vt_check(file);
if (perm < 0) return perm;
if (copy_from_user(&cfdarg, user_cfd,
sizeof(struct consolefontdesc32)))
return -EFAULT;
cfdarg.chardata = (unsigned char *)
A(((struct consolefontdesc32 *)&cfdarg)->chardata);
switch (cmd) {
case PIO_FONTX:
/*gaj
if (!perm)
*/
return -EPERM;
/*
op.op = KD_FONT_OP_SET;
op.flags = 0;
op.width = 8;
op.height = cfdarg.charheight;
op.charcount = cfdarg.charcount;
op.data = cfdarg.chardata;
return con_font_op(fg_console, &op);
*/
case GIO_FONTX:
/* gaj
if (!cfdarg.chardata)
*/
return 0;
/*
op.op = KD_FONT_OP_GET;
op.flags = 0;
op.width = 8;
op.height = cfdarg.charheight;
op.charcount = cfdarg.charcount;
op.data = cfdarg.chardata;
i = con_font_op(fg_console, &op);
if (i)
return i;
cfdarg.charheight = op.height;
cfdarg.charcount = op.charcount;
((struct consolefontdesc32 *)&cfdarg)->chardata =
(unsigned long)cfdarg.chardata;
if (copy_to_user(user_cfd, &cfdarg,
sizeof(struct consolefontdesc32)))
return -EFAULT;
return 0;
*/
}
return -EINVAL;
}
static int do_kdfontop_ioctl(unsigned int fd, unsigned int cmd,
struct console_font_op32 *fontop, struct file *file)
{
struct console_font_op op;
int perm = vt_check(file), i;
struct vt_struct *vt;
if (perm < 0) return perm;
if (copy_from_user(&op, (void *) fontop,
sizeof(struct console_font_op32)))
return -EFAULT;
if (!perm && op.op != KD_FONT_OP_GET)
return -EPERM;
op.data = (unsigned char *)
A(((struct console_font_op32 *)&op)->data);
op.flags |= KD_FONT_FLAG_OLD;
vt = (struct vt_struct *)((struct tty_struct *)
file->private_data)->driver_data;
/*gaj
i = con_font_op(vt->vc_num, &op);
*/
i = con_font_op(vt->fg_console->vc_num, &op);
if (i) return i;
((struct console_font_op32 *)&op)->data =
(unsigned long)op.data;
if (copy_to_user((void *) fontop, &op,
sizeof(struct console_font_op32)))
return -EFAULT;
return 0;
}
static int do_unimap_ioctl(unsigned int fd, unsigned int cmd,
struct unimapdesc32 *user_ud, struct file *file)
{
struct unimapdesc32 tmp;
int perm = vt_check(file);
if (perm < 0) return perm;
if (copy_from_user(&tmp, user_ud, sizeof tmp))
return -EFAULT;
switch (cmd) {
case PIO_UNIMAP:
/* gaj
if (!perm)
*/
return -EPERM;
/*
return con_set_unimap(fg_console, tmp.entry_ct,
(struct unipair *)A(tmp.entries));
*/
case GIO_UNIMAP:
return -EPERM;
/* gaj
return con_get_unimap(fg_console, tmp.entry_ct,
&(user_ud->entry_ct),
(struct unipair *)A(tmp.entries));
*/
}
return 0;
}
--------------------------------------------------------------------
I do not care much about fonts on the console but you certainly
know a better solution.
Also thank you for your hint using 2.6.8 kernel, I will try that.
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