Bug#322754: xserver-xfree86 bug report
Package: xserver-xfree86
Version: 4.3.0.dfsg.1-14
[debconf] Simplified monitor selection can result in
driver settings which overclock the monitor, and the monitor
will not turn on.
I have been setting up debian testing on an older 19 inch
monitor with the 3dfx driver (tdfx).
If I used the simplified monitor setup, and report that
I have a 19-20 inch monitor, but only use display modes
to 1280x1024, the XF86Config-4 file will allow
Hsync from 30-160 and Vsync from 50-150 (necessary for
the 2000x1500 resolution, I guess). As a result,
the automatic mode selection will choose Hsync and Vsync
which exceed my monitor's capabilities in 1280x1024 mode.
This happens in both of the simplified monitor setup
modes (Simple and Medium).
In advanced mode I could force Vsync and Hsync to reasonable
values for my monitor, and everything came up.
I think I was led astray by the simplified setup -- In
particular, the max vsync rate > 85 is surprizing to
me. The simplified setups should look at the maximum
requested resolution, and reduce default Hsync and Vsync
ranges.
-- Robert Neff
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