intel 830mg configuration on Debian Wheezy

mahu_mahu · 11-14-2013, 02:47 AM

Hi, all.
I'm using a laptop using intel 830 onchip graphics(intel 830mg).
I installed Debian Wheezy on that machine and booted , but I got a small screen 640x480 only.
It uses intel driver for graphics and can have screen 1024x768, but xrandr outputs

Code:

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 640 x 480, maximum 640 x 480
default connected 640x480+0+0 0mm x 0mm
   640x480        60.0*

And,
i915.modeset=0 on kernel parameter line did not work.
new mode addition with xrandr seemed to fail.
Latest driver(2.99.902) did not work possibly because of wrong configuration.
(But i don't know what to do to configure properly.
I also posted question on intel-gfx mailing list , and i got one reply but after that they seems to be busy to reply me)

So , someone pls let me know

1. How to configure with default Wheezy graphic environment to make intel 830mg onchip graphics work properly with intel graphic driver(intel_drv.so) to use 24 bit color depth .
2. Or how to configure latest intel driver properly .

If you'd like to know something about my machine , do not hesitate to ask me.

T.I.A

Pearlseattle · 11-14-2013, 12:38 PM

Hi

I think that here we're missing some key informations... .

Quote:

i915.modeset=0

Any reason why you deactivated modeset?

Where do you get the low resolution? Already by booting or only later when the desktop is started?
What happens when you fall back into a pure console - is the resolution there as well low?
Did you try installing some other distributions - e.g. Fedora?

Thanks

mahu_mahu · 11-14-2013, 07:54 PM

Thanks.

Quote:

Any reason why you deactivated modeset?

Because I googled and found people say deactivate modeset , but after that I found from version 2.10 and later on , intel driver will not run without KMS.

Quote:

Where do you get the low resolution?

Wheezy's auto configuration.

Quote:

What happens when you fall back into a pure console

Press Ctrl+F1 , seems to be low resolution.

Quote:

Did you try installing some other distributions?

Not yet.

Pearlseattle · 11-15-2013, 01:25 PM

So, first of all re-enable KMS / Kernel Modesetting.
Second, boot, fire up the desktop and install a package called "read-edid" (or something similar - package name varies from distribution to distribution).

Then, run "get-edid | parse-edid" (you might have to run that cmd as "root"-user) => do you see the high-resolution listed, which should be the native resolution of your monitor?
This has to work - the intel driver will refuse to use a resolution which is not supported by the monitor, which in turn is obtained by the driver by talking to the monitor and get its EDID-specs, which in turn specify the desired resolution the monitor would like to have.

Cheers

mahu_mahu · 11-24-2013, 09:03 AM

Ah, from this morning, the machine do not boot up , seems broken.
I'm so sorry , Pearlseattle, but this thread should end .
Anyway , your help was appreciated.