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Re: xorg and 1280x800



> On Tue, Nov 28, 2006 at 01:17:48PM -0000, richard@the-place.net wrote:
>> Quick question: Has anybody here succeeded to get 1280x800 resolution
>> with a widescreen laptop?  I have an Acer Aspire 1640Z which has, in
>> common with a few others, this:
>>
>> 0000:00:02.0 VGA compatible controller: Intel Corporation Mobile
>> 915GM/GMS/910GML Express Graphics Controller (rev 04)
>
> I have the same exact card, and have it working at 1280x800. Mi setup
> IIRC included installing 915resolution and setting up
> /etc/default/915resolution like this (comments stripped):
> MODE=4d
> XRESO=1280
> YRESO=800
> BIT=16
>
> IIRC 1280x800 wasn't showing in 915resolution -l becouse the idea is
> that you replace one of the modes (in my config the 4d mode) with the
> 1280x800 support. And looking at 915resolution -l |grep 4d seems that I
> recall correctly:

Well, thank you for that, Damián.  But it didn't help. I tried using a
mode that is listed -- to replace it, as you say.  Perhaps there is
something else that needs to be done other than editing the
defaults/915resolution file in order to register the change.  I also tried
using an unused mode name as the comment in the file suggests one should
use 915resolution -l to find an unused mode.  Neither helped. And
915resolution -l always shows the same list with no variation caused by
the config in /etc/default.

Interestingly, I see from the xorg log that it recognises the screen very
precisely:

[...]
(II) I810(0): Display Info: LFP (local flat panel): attached: TRUE,
present: TRUE, size: (1280,800)
[...]
(II) I810(0): Size of device LFP (local flat panel) is 1280 x 800
(II) I810(0): No active displays on Pipe A.
(II) I810(0): Currently active displays on Pipe B:
(II) I810(0):   LFP (local flat panel)
(II) I810(0): Lowest common panel size for pipe B is 1280 x 800
(==) I810(0): Display is using Pipe B
(--) I810(0): Maximum frambuffer space: 65368 kByte
(II) I810(0): VESA VBE PanelID read successfully
(II) I810(0): PanelID returned panel resolution : 1280x800
(II) Loading sub module "ddc"
(II) LoadModule: "ddc"
(II) Reloading /usr/lib/xorg/modules/libddc.so
(II) I810(0): VESA VBE DDC supported
(II) I810(0): VESA VBE DDC Level 2
(II) I810(0): VESA VBE DDC transfer in appr. 1 sec.
(II) I810(0): VESA VBE DDC read successfully
(II) I810(0): Manufacturer: SEC  Model: 3345  Serial#: 0
(II) I810(0): Year: 2004  Week: 0
(II) I810(0): EDID Version: 1.3
(II) I810(0): Digital Display Input
(II) I810(0): Max H-Image Size [cm]: horiz.: 33  vert.: 21
(II) I810(0): Gamma: 2.20
(II) I810(0): No DPMS capabilities specified; RGB/Color Display
(II) I810(0): First detailed timing is preferred mode
(II) I810(0): redX: 0.580 redY: 0.340   greenX: 0.310 greenY: 0.550
(II) I810(0): blueX: 0.155 blueY: 0.155   whiteX: 0.313 whiteY: 0.329
(II) I810(0): Manufacturer's mask: 0
(II) I810(0): Supported additional Video Mode:
(II) I810(0): clock: 68.9 MHz   Image Size:  331 x 207 mm
(II) I810(0): h_active: 1280  h_sync: 1296  h_sync_end 1344 h_blank_end
1408 h_border:
 0
(II) I810(0): v_active: 800  v_sync: 801  v_sync_end 804 v_blanking: 816
v_border: 0
(II) I810(0):  SAMSUNG
(II) I810(0):  LTN154X3-L01
(--) I810(0): A non-CRT device is attached to pipe B.
        No refresh rate overrides will be attempted.
(--) I810(0): Maximum space available for video modes: 12288 kByte

It then goes on to list all the specs of the modes that 915resolution -l
lists, taking 42 lines for each one, but not adding the resolution from
the /etc/default file.  And finally, it says

(WW) I810(0): config file hsync range 45.7143-50.5263kHz not within DDC
hsync ranges.
(II) I810(0): Samsung LTN154X3-L01: Using hsync range of 45.71-50.53 kHz
(II) I810(0): Samsung LTN154X3-L01: Using vrefresh value of 60.00 Hz
(II) I810(0): Not using mode "1280x800" (no mode of this name)
(--) I810(0): Virtual size is 1024x768 (pitch 1024)
(**) I810(0):  Built-in mode "1024x768"

So I'm back where I started.

Hey ho.

-- 
richard





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