selecting modes with xf86-video-intel modesetting
keithp at keithp.com
Sun Feb 25 02:56:59 PST 2007
On Sun, 2007-02-25 at 11:50 +0100, Frédéric RISS wrote:
> under the title "X not retrieving EDID data" (the above link contains a
> Xorg.log). I'm also using xf86-video-intel modesetting.
Something is probably going wrong with the low-level i2c code which is
driving the DDC bus. There is debugging code for the i2c code which is
compiled-out by default in i830_i2c.c; if you enable that, you can watch
the DDC bus transactions and perhaps we can figure out why DDC is not
Check out line 264 of i830_i2c.c and set I2C_DEBUG to 1 which will dump
piles of fairly hard to interpret data to the log file; that will show
precisely what levels are set and seen on the I2C bus.
keith.packard at intel.com
-------------- next part --------------
A non-text attachment was scrubbed...
Size: 189 bytes
Desc: This is a digitally signed message part
More information about the xorg