Re: XF86 4.2.0 and IBM T210

On Tue, 19 Nov 2002, Robert H. Brown wrote:

> Hi,
> 
> After a few days of trying everything I can think of, I can't get XF86
> to run my IBM T210 flat panel at it's full 2048x1536 resolution. The
> best I can accomplish is getting it to run at 1600x1200 at 85 Hz. That
> would be OK except that the monitor is interpolating pixels and in
> places the text looks pretty ratty. I have a Matrox G450 with 32 megs,
> and the Matrox people say the card fully supports 2048x1536 at 24 bits
> deep. As near as I can tell XF86 says there's no 2048x1536 mode, which I
> assume is because there's something in the probe of the monitor for that
> mode it doesn't like. Attached is the server log. Any insight would be
> greatly appreciated.

XFree86 doesn't have any built in 2048x1536 modes,
but your monitor wrote the following into the log file:

(II) MGA(0): Supported additional Video Mode:
(II) MGA(0): clock: 238.8 MHz   Image Size:  424 x 318 mm
(II) MGA(0): h_active: 2048  h_sync: 2136  h_sync_end 2232 h_blank_end 
2488 h_border: 0
(II) MGA(0): v_active: 1536  v_sync: 1552  v_sync_end 1568 v_blanking: 
1600 v_border: 0
(II) MGA(0): Ranges: V min: 50  V max: 100 Hz, H min: 31  H max: 120 kHz, 
PixClock max 240 MHz

so
Modeline "2048x1536@60" 238.8 2048 2136 2232 2488 1536 1552 1568 1600 
many work, or you may need to experiment by adding +hsync, -hsync,
+vsync and or -vsync at the end of that line.

-- 
Dr. Andrew C. Aitchison		Computer Officer, DPMMS, Cambridge
[email protected]	http://www.dpmms.cam.ac.uk/~werdna