From: Marek Szuba
Date: Mon Nov 15 2004 - 11:05:52 EST
Recently I have attempted to, in addition to my Matrox framebuffer
console, enable a second head text console using mdacon driver;
unfortunately I have been able neither to get it working nor to find any
information on this in the docs or on the net.
First of all, some technical data - the kernel I use at present is 2.6.7
(following problems with 2.6.9 which I shall describe in a separate
post) and the second-head graphics card is an old PCI SVGA (which I
believe might be the reason why it doesn't work; then again, AFAIK it is
compatible with the MDA mode).
1. The second card got installed in a free PCI slot and the system got
booted. The primary graphics card works as usual, the monitor connected
to the secondary one remains in power-saving mode.
2. Having compiled the appropriate kernel module and loaded it with
"modprobe mdacon mda_first_vc=13 mda_last_vc=24", the following got sent
Nov 14 00:24:23 host kernel: mdacon: MDA with 8K of memory detected.
Nov 14 00:24:23 host kernel: Console: switching consoles 13-24 to MDA-2
3. Nothing else happened: the primary display works as usual and the
secondary monitor remains in off mode.
I have also tried loading the module with no options, obtaining
"Console: switching consoles 1-16 to MDA-2 80x25" but rendering the text
console unusable (probably due to fbcon).
Could you shed any light on the issue? If you need any more information,
please don't hesitate to ask.
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/