[Bug 432401] Re: [i915gm] Intel/KMS: Missing 1024 x 768 mode (regression from Jaunty)

Chase Douglas chase.douglas at canonical.com
Tue Mar 2 16:11:19 UTC 2010


@Andreas Schildbach:

Actually, I've looked at the output for ddcprobe on my laptop and it
doesn't match my laptop's specifications or what xrandr outputs either.
I'm not sure it's an effective tool for our usage. I looked up your
laptop (Dell latitude X1), and I saw that it indeed has a 1280x768
screen. What I'm seeing in your X logs tells me that X thinks the
1024x768 screen is not possible based on your laptop's EDID table:

(II) intel(0): Not using default mode "1024x768" (hsync out of range)
(II) intel(0): Not using default mode "1024x768" (vrefresh out of range)
(II) intel(0): Not using default mode "1024x768" (vrefresh out of range)
(II) intel(0): Not using default mode "1024x768" (vrefresh out of range)
...
(II) intel(0): Printing probed modes for output LVDS1
(II) intel(0): Modeline "1280x768"x59.9   79.50  1280 1344 1472 1664  768 771 778 798 -hsync -vsync (47.8 kHz)
(II) intel(0): Modeline "800x600"x60.3   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz)
(II) intel(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz)
(II) intel(0): Modeline "0x0"x0.0    0.00  0 0 0 0  0 0 0 0 (0.0 kHz)

Is it possible for you to boot into jaunty (either a previous
installation or a boot cd) to capture the X log? That may tell us some
more information as to why jaunty's X server thinks 1024x768 is valid,
but karmic's X server does not.

-- 
[i915gm] Intel/KMS: Missing 1024 x 768 mode (regression from Jaunty)
https://bugs.launchpad.net/bugs/432401
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