Messages in this thread | | | Date | Mon, 27 Jul 1998 17:45:39 +0000 | From | Sid Boyce <> | Subject | Re: VESA VGA Frame Buffer |
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Martin Wrote.............. > I'm afraid you didn't read the docs too well... > Both of these modes are _text_ modes, not _graphics_ modes. Vesafb is a > graphics driver, so it's of no use specifying a text mode.
>> With VGA_CONSOLE I get the old stream of message output and I've given >> the lilo prompt ... >> vga="ask,mode=0778" >> vga=vesa:redraw
> I'm sure you didn't find these options anywhere as both of them make no sense.
> Just use "vga=ask" and enter mode "0303" to get 800x600x8.
From vesafb.txt...... The graphic modes are not in the list which you get if you boot with vga=ask and hit return. Here are some mode numbers:
| 640x480 800x600 1024x768 ----+--------------------------- 256 | 0x101 0x103 0x105 32k | 0x110 0x113 0x116 64k | 0x111 0x114 0x117 16M | 0x112 0x115 0x118
Note 1: this are the VESA mode numbers. The video mode select code expects 0x200 + VESA mode number. Note 2: lilo can't handle hex, for booting with "vga=??" you have to transform the numbers to decimal. ================================================= So I figured 0x105 + 0x200 = 0x305 = 0773 decimal, one of the numerous ones I tried and got "bad mode number", then I selected (8) 030A from the menu as it was one of the ones listed, the docs did say the VESA modes would not be displayed. I recompiled with different options this time....... # CONFIG_VGA_CONSOLE is not set CONFIG_VIDEO_SELECT=y CONFIG_FB=y CONFIG_DUMMY_CONSOLE=y CONFIG_FB_VGA=y CONFIG_FB_VESA=y CONFIG_VIDEO_SELECT=y # CONFIG_FB_MDA is not set # CONFIG_FB_VIRTUAL is not set # CONFIG_FBCON_ADVANCED is not set CONFIG_FBCON_CFB8=y CONFIG_FBCON_CFB16=y CONFIG_FBCON_CFB32=y CONFIG_FBCON_VGA=y CONFIG_FBCON_FONTS=y CONFIG_FONT_8x8=y CONFIG_FONT_8x16=y # CONFIG_FONT_SUN8x16 is not set # CONFIG_FONT_SUN12x22 is not set # CONFIG_FONT_6x11 is not set # CONFIG_FONT_PEARL_8x8 is not set # CONFIG_FONT_ACORN_8x8 is not set On bootup, I got the same "invalid mode number" message when I entered 0303, so I selected (8) 030A and it all came up with the normal full screen of messages, I didn't see the logo, may be it came up when I was distracted. Now dmesg says for the first time .......... Console: switching to colour frame buffer device 132x43 fb0: VGA frame buffer device, using 32K of video memory
[barrabas:~]# fbset -s
mode "name" # H: 20.703 kHz, V: 52.546 Hz geometry 1056 344 1056 992 4 timings 39722 40 24 39 9 96 2 endmode I reckon it had to be problems with the kernel config, I'm fairly certain this is the first time I selected CONFIG_FB_VGA as well as CONFIG_FB_VESA. I shall try my other machine later, reckon it will be OK with the same config. Thanks and Regards -- ... Sid Boyce...Amdahl(Europe)...44-121 422 0375 ----------------------------------- Any opinions expressed above are mine and do not necessarily represent the opinions or policies of Amdahl Corporation.
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