Manfred Eifler wrote on Sat, 2 Dec 2006 21:05:11 +0100:
Hallo Liste,
ich habe zum Testen zusätzlich den Kernel-xen installiert und zwei Probleme.
- Wie kann ich die Bilschirmauflösung des Textmodus eistellen? Die Schrift ist riesig, aber nur beim Booten dieses Kernels. Ich ging davon aus, dass in der menu.lst der eingetragenen vga-Wert dafür verantwortlich ist. Änderungen haben nichts geändert.
/usr/src/linux/Documentation/fb/vesafb.txt How to use it? ============== Switching modes is done using the vga=... boot parameter. Read Documentation/svga.txt for details. You should compile in both vgacon (for text mode) and vesafb (for graphics mode). Which of them takes over the console depends on whenever the specified mode is text or graphics. The graphic modes are NOT in the list which you get if you boot with vga=ask and hit return. The mode you wish to use is derived from the VESA mode number. Here are those VESA mode numbers: | 640x480 800x600 1024x768 1280x1024 ----+------------------------------------- 256 | 0x101 0x103 0x105 0x107 32k | 0x110 0x113 0x116 0x119 64k | 0x111 0x114 0x117 0x11A 16M | 0x112 0x115 0x118 0x11B The video mode number of the Linux kernel is the VESA mode number plus 0x200. Linux_kernel_mode_number = VESA_mode_number + 0x200 So the table for the Kernel mode numbers are: | 640x480 800x600 1024x768 1280x1024 ----+------------------------------------- 256 | 0x301 0x303 0x305 0x307 32k | 0x310 0x313 0x316 0x319 64k | 0x311 0x314 0x317 0x31A 16M | 0x312 0x315 0x318 0x31B To enable one of those modes you have to specify "vga=ask" in the lilo.conf file and rerun LILO. Then you can type in the desired mode at the "vga=ask" prompt. For example if you like to use 1024x768x256 colors you have to say "305" at this prompt. If this does not work, this might be because your BIOS does not support linear framebuffers or because it does not support this mode at all. Even if your board does, it might be the BIOS which does not. VESA BIOS Extensions v2.0 are required, 1.2 is NOT sufficient. You will get a "bad mode number" message if something goes wrong. 1. Note: LILO cannot handle hex, for booting directly with "vga=mode-number" you have to transform the numbers to decimal. 2. Note: Some newer versions of LILO appear to work with those hex values, if you set the 0x in front of the numbers. für eine 1024x768 Auflösung sollte demnach vga=791 funktionieren. PS: suse-linux@suse.com ist nun opensuse-de@opensuse.org Mit freundlichen Grüßen / Best regards, Oliver Meißner-Knippschild <lists.o@la-familia-grande.de> PGP-Fingerprint: FA5D 891C 298B 08DF 1ED7 9AFB 57B1 B3D7 3109 925A Download key at: http://www.la-familia-grande.de/keys/3109925A.txt -- Wenn ich wüsste, was Kunst ist, würde ich es für mich behalten. Pablo Picasso