From mboxrd@z Thu Jan 1 00:00:00 1970 From: sanjay anvekar Subject: Re: Help-On frame Buffer Date: Mon, 6 Dec 2010 03:49:43 -0800 (PST) Message-ID: <606957.28837.qm@web36106.mail.mud.yahoo.com> References: <671678.70836.qm@web36107.mail.mud.yahoo.com> <20101203214257.6ad6a8c2@neptune.home> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1852328532==" Return-path: Received: from web36106.mail.mud.yahoo.com (web36106.mail.mud.yahoo.com [66.163.179.220]) by gabe.freedesktop.org (Postfix) with SMTP id 630AD9E950 for ; Mon, 6 Dec 2010 03:49:44 -0800 (PST) In-Reply-To: <20101203214257.6ad6a8c2@neptune.home> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: =?iso-8859-1?Q?Bruno_Pr=E9mont?= Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org --===============1852328532== Content-Type: multipart/alternative; boundary="0-782808817-1291636183=:28837" --0-782808817-1291636183=:28837 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Hi Bruno,=0A Thanks for your reply. I have recompiled the Linux kernel w= ith =0ACONFIG_DRM_I915=0Aenabled, with the updated kernel file my display i= s looking strange. i.e. I have =0Avga=3D791=0Aoption in my boot configurati= on file and with this actual graphics screen is =0Adisplayed only=0Ain quar= ter area of screen. Which is reapting twice, covering left and right =0Aqua= rter of screen,=0Arest screen is black(i.e.bottom half of the screen). =0AH= ow can I solve this problem? Please help me. =0AWith the latest Kernel file= with CONFIG_DRM_I915 enabled, how do I set different =0Ascreen resolutions= . Please let me know.=0A=0AThanks & Best Regards,=0ASanjay=0A=0A=0A=0A=0A__= ______________________________=0AFrom: Bruno Pr=E9mont =0ATo: sanjay anvekar =0ACc: intel-gfx@list= s.freedesktop.org=0ASent: Sat, 4 December, 2010 2:12:57 AM=0ASubject: Re: [= Intel-gfx] Help-On frame Buffer=0A=0AHi,=0A=0AYou should look at KMS (Kerne= l Mode Setting) with i915 driver that you=0Afind under DRI. (CONFIG_DRM_I91= 5 + CONFIG_DRM_I915_KMS)=0AKMS can also be manually enabled/disabled with i= 915.modeset kernel=0Aparameter when i915 is built-in.=0A=0AVESA only knows = a few standard predefined modes but not the wide=0Aresolutions currently se= en. It's based on some BIOS code and can only=0Aset resolution at early sys= tem boot, does not support s2ram (S3) nor any=0Aacceleration.=0A=0ABruno=0A= =0A=0A=0AOn Fri, 03 December 2010 sanjay anvekar = wrote:=0A> Hi,=0A> =0A> I am new to Linux and frame buffer. I am using = Intel 945GSE / ICH7M chipset =0A>=0A> Panel PC with integrated Intel 945GSE= =0A> display chipset. Different size and resolution LCD screens are interfa= ced to =0A>the =0A>=0A> hardware (it supports Dual Channel 24-bit LVDS).=0A= > I am using Linux VESA frame buffer for various graphic object implementat= ion.I =0A=0A> am able to get 1024x768 screen resolution using=0A> VESA fram= e buffer, but I am not able to get the full screen resolution of =0A> 1366x= 768 pixels supported my LCD screen.=0A> Currenlty for various resolution I = am changing boot configuration file as =0Abelow=0A> e.g. vga=3D791 for = 1024x768.=0A> =0A> My existing BIOS does not list the 1366x768 resolution. = So I would like to know =0A>=0A> how I could get the full resolution using= =0A> the exsiting hardware.=0A> Please help me.=0A> =0A> Thanks & Best Reg= ards,=0A> Sanjay=0A> =0A> =0A=0A=0A --0-782808817-1291636183=:28837 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Hi Bruno,
    Thanks for your reply. I = have recompiled the Linux kernel with CONFIG_DRM_I915
enabled, with the = updated kernel file my display is looking strange. i.e. I have vga=3D791option in my boot configuration file and with this actual graphics screen = is displayed only
in quarter area of screen. Which is reapting twice, co= vering left and right quarter of screen,
rest screen is black(i.e.bottom= half of the screen).
How can I solve this problem? Please help me. With the latest Kernel file with CONFIG_DRM_I915 enabled, how do I set dif= ferent screen resolutions. Please let me know.

Thanks & Best Reg= ards,
Sanjay

From: = Bruno Pr=E9mont <bonbons@linux-vserver.org>
To: sanjay anvekar <sanjayanvekar@yahoo.com&g= t;
Cc: intel-gfx@lists.= freedesktop.org
Sent: S= at, 4 December, 2010 2:12:57 AM
Su= bject: Re: [Intel-gfx] Help-On frame Buffer

Hi,
You should look at KMS (Kernel Mode Setting) with i915 driver that you=
find under DRI. (CONFIG_DRM_I915 + CONFIG_DRM_I915_KMS)
KMS can also= be manually enabled/disabled with i915.modeset kernel
parameter when i9= 15 is built-in.

VESA only knows a few standard predefined modes but = not the wide
resolutions currently seen. It's based on some BIOS code an= d can only
set resolution at early system boot, does not support s2ram (S3) n= or any
acceleration.

Bruno



On Fri, 03 December 201= 0 sanjay anvekar <sanjayanvekar@yahoo.com> wrote:
&= gt; Hi,
>
>    I am new to Linux and frame buffer. = I am using Intel 945GSE / ICH7M chipset
> Panel PC with integrated I= ntel 945GSE
> display chipset. Different size and resolution LCD scre= ens are interfaced to the
> hardware (it supports Dual Channel 24-bi= t LVDS).
> I am using Linux VESA frame buffer for various graphic obj= ect implementation.I
> am able to get 1024x768 screen resolution usi= ng
> VESA frame buffer, but I am not able to get the full screen reso= lution of
> 1366x768 pixels supported my LCD screen.
> Currenl= ty for various resolution I am changing boot configuration file as below
>    e.g. vga=3D791 for 1024x768.
>
> = My existing BIOS does not list the 1366x768 resolution. So I would like to = know
> how I could get the full resolution using
> the exsitin= g  hardware.
> Please help me.
>
> Thanks & Bes= t Regards,
> Sanjay
>
>
=0A

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