Subject: Re: help needed with X config
To: Greg 'groggy' Lehey <grog@NetBSD.org>
From: Steven M. Bellovin <email@example.com>
Date: 07/03/2004 08:22:03
In message <20040703051936.GH1603@wantadilla.lemis.com>, "Greg 'groggy' Lehey"
>Content-Type: text/plain; charset=us-ascii
>On Wednesday, 23 June 2004 at 21:11:11 -0400, Steven M. Bellovin wrote:
>> I'm having trouble configuring X for a new machine. I've attached my
>> XF86Config and the Xlog output. The config file is identical to the
>> previous one I had used (with the same monitor), with the exception of
>> the Device section, which I took from the file generated by the
>> -configure option. The monitor specs can be found at
>> I'm trying to run at 1280x1024, 16 bpp. Windows XP does it just fine,
>> and the monitor does indeed claim to be running at 91.1 Hz horizontal.
>> But XFree86 insists that it can't find a usable configuration. I tried
>> adding HorizSync and VertRefresh lines to the Monitor section (not
>> shown below); that didn't help.
>> The log file clearly shows that Mode 49 is 1280x1024x16, so the
>> resolution and depth are supported. I freely confess I don't
>> understand the rest of the fields for the mode descriptions.
>> I'm running a very up-to-date -current X server.
>You don't say what goes wrong, and neither (AFAICT) does the log file,
>but it does point to a problem with the mouse. What happens when you
>try to start? Does xf86cfg do anything useful?
Sorry -- I should have, of course. The problem is that X doesn't start
at all -- it complains that it can't find a video mode to match what
the BIOS says. I had a followup posting, and PR 26106, with more
current data -- it's not a configuration issue; it's some bug or
deficiency in either the i810 driver in X or in our agp kernel driver.
The latest datum is that XFree86 4.3 is working for me. I'll be doing
a lot more analysis tomorrow, and will post details then.
--Steve Bellovin, http://www.research.att.com/~smb