[Bug 1284] Xorg unable to reach 1024x768 resolution

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https://bugs.freedesktop.org/show_bug.cgi?id=1284          
     

guitou at presensia.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|DUPLICATE                   |




------- Additional Comments From guitou at presensia.com  2005-03-08 08:54 -------
This problem differs from the bug #643, because 1024x768 _is_ a standard
resolution, listed in the Intel video bios.
I have the same problem, in my case only the mode 640x480 is available via Xorg.
Hardware : Mainboard Commell LV671 with video chipset Intel 855GME
Software : Xorg 6.8.2 + i810 driver, kernel 2.4.26,...

>From Xorg.0.log :
"
(II) I810(0): Not using mode "1280x768" (no mode of this name)
(II) I810(0): Not using mode "1024x768" (no mode of this name)
(II) I810(0): Not using mode "800x600" (no mode of this name)
    [...]
Mode: 30 (640x480)
    [...]
Mode: 32 (0x0)
    [...]
Mode: 34 (0x0)
    [...]
Mode: 38 (0x0)
    [...]
Mode: 3a (0x0)
    [...]
Mode: 3c (0x0)
    [...]
Mode: 41 (640x480)
    [...]
Mode: 43 (0x0)
    [...]
    [...]
"

>From the '855resolution' output :
"
855resolution version 0.3, by Alain Poirier

Chipset: 855GM
VBIOS type: 2
VBIOS Version: 3181

Mode 30 : 640x480, 8 bits/pixel
Mode 32 : 800x600, 8 bits/pixel
Mode 34 : 1024x768, 8 bits/pixel
Mode 38 : 1280x1024, 8 bits/pixel
Mode 3a : 1600x1200, 8 bits/pixel
Mode 3c : 1920x1440, 8 bits/pixel
Mode 41 : 640x480, 16 bits/pixel
Mode 43 : 800x600, 16 bits/pixel
Mode 45 : 1024x768, 16 bits/pixel
Mode 49 : 1280x1024, 16 bits/pixel
Mode 4b : 1600x1200, 16 bits/pixel
Mode 4d : 1920x1440, 16 bits/pixel
Mode 50 : 640x480, 32 bits/pixel
Mode 52 : 800x600, 32 bits/pixel
Mode 54 : 1024x768, 32 bits/pixel
Mode 58 : 1280x1024, 32 bits/pixel
Mode 5a : 1600x1200, 32 bits/pixel
Mode 5c : 1920x1440, 32 bits/pixel
"

These modes are included and made available by the Vbios, I just can't figure
why Xorg can't use on other than 640x480.

Another info, I tried the _exact same_ configuration with a slightly different
mainboard including an Intel 845GV chipset, and this same software configuration
is working like a charm with any of the listed resolutions above.          
     
     
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