Messages in this thread |  | | From | "Thorsten Glaser Geuer" <> | | Subject | Basic Text Mode (was: Re: Question about SysRq) | | Date | Mon, 2 Apr 2001 16:35:56 -0000 |
| |
> Thought, i really love all sysrq properties of linux, so i need less often > to make hardware resets an then await and fear, what fsck will print.
101% ACK
> One more property, that i'd like to have should be request key to force the > most basic text mode (say 80x25) on the console, when eg. X freezes and > i kill its session, then last gfx mode resides on the screen and see no way > to restore back the text mode - /usr/bin/reset or something alike will not > do it. But it seems to be not a good idea at all, does it ?
It is a very good idea, and to implement quite easy. You just do have to diff between three types of video cards (MDA, MGA and HGC vs. CGA and AGA vs. EGA+). Then you do direct register writes. For the HGC I did it recently in a DOS proggy which switched from text to gfx and back. I had a TSR which simulated a gfx BIOS. Only problem is, I lost the source. But I could rewrite and test it on request. I even would put it under GPL for the kernel (normally this is a no-no for me), just ask me. I will write it in NASM then because I can't the AT&T syntax. For non-i386 Platforms I do not know about this topic. (IIRC the Apples didnt even have a text mode) Maybe I could look up the EGA register values somewhere.
-mirabilos
- 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/
|  |