Bug 18243 - 16 bpp on Matrox G200 hangs system
16 bpp on Matrox G200 hangs system
Product: Red Hat Linux
Classification: Retired
Component: XFree86 (Show other bugs)
i686 Linux
medium Severity medium
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Assigned To: Preston Brown
Depends On:
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Reported: 2000-10-03 13:11 EDT by Need Real Name
Modified: 2008-05-01 11:37 EDT (History)
0 users

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Doc Type: Bug Fix
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Last Closed: 2000-10-03 13:11:28 EDT
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Description Need Real Name 2000-10-03 13:11:26 EDT
Setting a Matrox G200 video card to 16bpp hangs the system when starting
XFree86 on RedHat Linux 7.0 (Guinness).  System is so hosed that soft-off
(front of case) does not work, must switch off system power (back of case).

More system info:

Matrox G200 AGP (8 MB RAM)
Athlon-700 MHz
256 MB RAM
Other video settings: 1024x768 res, Generic MultiSync Monitor (Horiz:30-64
Vert:50-100), 100 dpi fonts loaded.

WORKAROUND: Set the color depth to 8bpp or 32bpp.

This may have something to do with the DRI driver for XFree86 4.01, which,
I believe, operates only at 16bpp.
Comment 1 Preston Brown 2000-10-04 15:25:29 EDT
This can be worked around by turning off DRI when using 16bpp or higher with
resolutions > 1024x768 on a 8 meg G200.

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