Comment 33 for bug 292214

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Troy Carpenter (troy-carpenter) wrote : Re: [Bug 292214] Re: Xinerama broken since intrepid on MGA

Tried that and other options. When I set the above option, I see this
(note that video and Crtc2 RAM are the same):

(II) MGA(0): Primary V_BIOS segment is: 0xc000
(**) MGA(0): Using 32 MB of AGP memory
(**) MGA(0): Using AGP 4x mode
(--) MGA(0): Linear framebuffer at 0xD0000000
(--) MGA(0): Pseudo-DMA transfer window at 0xD2000000
(--) MGA(0): Video BIOS info block at offset 0x07D20
(II) MGA(0): MAPPED Framebuffer D0000000 2000000 to FFFFFFFFB598E000.
(II) MGA(0): UNMAPPING framebuffer 0xFFFFFFFFB598E000, 0x2000000.
(**) MGA(0): Crtc2 will use 16384K of VideoRam
(--) MGA(0): VideoRAM: 16384 kByte

Without that option, I get:
(--) MGA(0): Crtc2 will use 8192K of VideoRam
(--) MGA(0): VideoRAM: 24576 kByte

Both cases are the same. The second screen is messed up with black
slightly diagonal lines (going down from left to right), but obvious
changes to the distortion when I move the pointer onto that screen. I
can use a lower resolution on that screen which makes it viewable, but
its the wrong aspect ratio and the kde desktop doesn't seem to recognize
it completely (I can put windows over there, but none of the tools seem
to recognize that section).

Both sections of the Xorg.0.log file for MGA(0) and MGA(1) indicate they
picked this modeline to use:
(II) MGA(0): Modeline "1680x1050"x60.0 146.25 1680 1784 1960 2240
1050 1053 1059 1089 -hsync +vsync (65.3 kHz)
(II) MGA(1): Modeline "1680x1050"x60.0 146.25 1680 1784 1960 2240
1050 1053 1059 1089 -hsync +vsync (65.3 kHz)