1612 replies to this topic

[consono]

Martin255, on Mar 30 2009, 04:36 PM, said:

consono, when you say 'other widescreen resolutions', what do you mean? I thought VESA could not support anything higher than 1280x800.

To be true, VESA doesn't even support 1280x800... Thats where 915 resolution (more here)  steps in. With this program on linux you can modify the vidoe bios of your integrated intel gma to have non standard vesa modes (basically it replaces the selected video mode with a new one you specified). I used it to achieve 1440x900 on linux, so I think it will support higher resolutions than 1280x800. (one more thing: 915resolution doesn't support x4500! I had to create a new entry for it in the program, but you basically just need your pci id and have to copy the 96GM codes)

My train of thougth was:If I can use 915resolution to have vesa modes for my lcdm than maybe OSX will use these vesa modes,too. But 915 resolution is a linux utility, how can I start this at boot time? Its' GRUB2 (here) time! Because grub2 has 915resolution module which patches the video bios at boot time! But you need a linux distribution with grub2-915resolutin, thats why I choose archlinux. I installed it on a separate partition (after the osx install), downloaded the package (from here:http://aur.archlinux.org/packages.php?ID=22927), compilled, fiddled with the config file, installed, tried to boot OSX with it (info here:http://www.insanelymac.com/forum/index.php?showtopic=150004&pid=1063106&mode=threaded&start=#entry1063106) and when it worked I modified the 915resolution modul, recompilled it,replaced the original with it and now I can set my 1280x800 from the bootloader and If I boot osx from here then I can see my resolution when I type in ?video at boot, and can use "Graphics Mode" = "1280x800x32"

Hope this helps, but if not I try to help.

mynameiszane, on Mar 30 2009, 02:08 PM, said:

Any way you could translate this to a step by step guide cause thats confusing

Read below, I tried to explain it.

[Martin255]

Wow thanks! That's actually the most useful hack I have seen for this card. I'll try when I have a bit of time.

[ramky]

Only havd X3500 drivers suppor!
http://www.rayfile.c...2-0014221b798a/

[Durga Prasad]

Hi consono,

I have followed your instructions, but could not get 1280*800. May be, I have done something wrong.

Can you please post your patched 915resolution.c file and your grub.cfg file.

Note: In grub bootloader, I could see that 915resolution module was there and its count is 1. In the chameleon bootloader, I don't see 1280*800 resolution when I type "?video".

Thank you so much

--
DP

[consono]

Hi Druga!

I attached the files! (Even the compilled 915resolution.mod, you just have to replace the original .) Do you patched mode 34?

Consono

 915.zip   10.39K   1804 downloads

[Durga Prasad]

consono, on Apr 4 2009, 02:40 PM, said:

Hi Druga!

I attached the files! (Even the compilled 915resolution.mod, you just have to replace the original .) Do you patched mode 34?

Consono

915.zip

Hi Consono,

Thank you so so much for your help. Now, I am able to get 1280x800 resolution. Actually, I did not patch mode 34. After looking at your grub.cfg, I changed mine. Then, I found a bug in my 915resolution.c (I gave the wrong device id there). After I fixed that, everything worked great.

Once again, Thank you so much for your awesome idea.


-- For others, who are trying this, I have written a 'step-by-step' guide below

- Installed Ubuntu on a different partition (got problems while installing Arch-linux, so I have chosen Ubuntu).
- I modified /boot/grub/menu.lst to add Mac partition and found it is able to load even Mac. (may be this step is unnecessary)
- taken grub2+915resolution source code from http://aur.archlinux...es.php?ID=22927.
- compiled it on a different 32 bit linux machine on my network (because gcc installed on my ubuntu does not support 32-bit compilation. i.e. it does not support -m32). SCPed compiled files onto my ubuntu machine.
- opened package manager in ubuntu and removed the grub package that is already installed on my machine
- installed new grub using "./grub-install /dev/sda" command. NOTE: in grub2, grub.cfg is used for reading the configuration file. Write your own /boot/grub/grub.cfg. NOTE: For loading Mac, I did not follow the method used by consono. I did not create any extra partition. My Mac has /boot file. So, I am just loading that. Mac part in my grub.cfg looks like below

   set root=(hd0,2)
   multiboot (hd0,2)/boot

- We have to make sure that grub is able to load all operating systems installed on the machine. If it is able to load, we have completed 75% of the whole process. Make sure to take the backup of grub.cfg after this step.
- Next step is to patch grub source with 915resolution. Compile the grub and install the new grub. use the same grub.cfg that you have saved in the previous stage.
- We have to add G45 chipset support to 915 resolution. To know what to add, simply follow the code given by 'consono'. OR you could try your luck by directly copying 915resolution.mod given by consono. ( I think copying 915resolution.mod works in most of the cases )
- Once we have replaced our old 915resolution.mod with the new one, we need to add certain commands to grub.cfg. To know what commands (i.e. insmod, 915resolution etc.) to add to grub.cfg, take a look at grub.cfg given by consono.
- Reboot now and choose Mac in grub. If we type '?video' in Mac bootloader, we should be able to see "1280x800x32".
- Boot Mac with "Graphics Mode"="1280x800x32"   and enjoy the widescreen

Once again, many thanks to 'consono' for this great idea.

[mynameiszane]

any help for us who dont knoe about compiling and those stuff.

[dokugogagoji]

ramky, on Apr 2 2009, 08:24 AM, said:

Only havd X3500 drivers suppor!
http://www.rayfile.c...2-0014221b798a/

Hi guys...I'm also the unlucky owner of a GMA 4500. Thanks to the 915resolution fix, I have got a decent resolution!

However, I'm thinking about writing a driver for this board... do you think it's doable porting the GNU/Linux X driver to Mac OS X looking at the Darwin source code and (hopefully) a video related kext code? Thanks!

[tomnic]

dokugogagoji, on Apr 5 2009, 08:35 AM, said:

Hi guys...I'm also the unlucky owner of a GMA 4500. Thanks to the 915resolution fix, I have got a decent resolution!

However, I'm thinking about writing a driver for this board... do you think it's doable porting the GNU/Linux X driver to Mac OS X looking at the Darwin source code and (hopefully) a video related kext code? Thanks!

This could help 16'' wide screen lcd panels getting the infamous 1366x768 resolution working, at least in vesa mode!!! Really nice idea!

[dokugogagoji]

tomnic, on Apr 5 2009, 10:41 AM, said:

This could help 16'' wide screen lcd panels getting the infamous 1366x768 resolution working, at least in vesa mode!!! Really nice idea!

Yeah it was also my first thought.

[dac3d]

mobile intel 4 on fujitsu  esprimo 6535   ven_8086 dev 2a42  ned kext if possible

[consono]

Durga Prasad, on Apr 4 2009, 10:13 PM, said:

Hi Consono,

Thank you so so much for your help. Now, I am able to get 1280x800 resolution. Actually, I did not patch mode 34. After looking at your grub.cfg, I changed mine. Then, I found a bug in my 915resolution.c (I gave the wrong device id there). After I fixed that, everything worked great.

You are welcome! I think I made the same mistake with the PCI ID (used 2a42 instead of 2a40?) I'm glad it worked for you even using other linux distribution!

[fx600]

Thanks! Will try the consono patch and 915Resolution as soon as new HDD arrives. Beside that, I see that 915Resolution hack supports 800 series boards as well, so it might be a solution for non-QE native resolution (e.g. 1024x600) for old mininotebooks having 855GM boards! Can't wait till I try that. I will report more in few weeks time if it works on 855  as well...

[gozali]

hi durga,

i'm using ubuntu 8.10, is the 915 patch work if i installed grub2 using apt?
and which package do i have to install, since there is 5 version of grub2

grub-efi - GRand Unified Bootloader, version 2 (EFI version)
grub-ieee1275 - GRand Unified Bootloader, version 2 (Open Firmware version)
grub-linuxbios - GRand Unified Bootloader, version 2 (LinuxBIOS version)
grub-pc - GRand Unified Bootloader, version 2 (PC/BIOS version)
grub2 - GRand Unified Bootloader, version 2 (dummy package)
grub2-splashimages - a collection of great GRUB2 splashimages

thank you for your help

[cocob]

Consono / Durga.

   I could not install archlinux due to some installation errors. I have installed Ubuntu ,patched the grub2 and when compiling (using configure), am getting compilation errors ( Fixed some, but keep on getting errors). Can you upload the compiled grub2 files?
  I will try to replace the compiled 915resolution.c on it, and try to boot and update you guys over the weekend.

Also...Is the display looking bright and crisp after changing to the desired resolution?

gozali, on Apr 17 2009, 07:08 PM, said:

hi durga,

i'm using ubuntu 8.10, is the 915 patch work if i installed grub2 using apt?
and which package do i have to install, since there is 5 version of grub2

grub-efi - GRand Unified Bootloader, version 2 (EFI version)
grub-ieee1275 - GRand Unified Bootloader, version 2 (Open Firmware version)
grub-linuxbios - GRand Unified Bootloader, version 2 (LinuxBIOS version)
grub-pc - GRand Unified Bootloader, version 2 (PC/BIOS version)
grub2 - GRand Unified Bootloader, version 2 (dummy package)
grub2-splashimages - a collection of great GRUB2 splashimages

thank you for your help

Gozali,
  Can you upload the compiled grub2 files? we all can work together to get it solved..

[gozali]

cocob, on Apr 18 2009, 05:37 AM, said:

Consono / Durga.

   I could not install archlinux due to some installation errors. I have installed Ubuntu ,patched the grub2 and when compiling (using configure), am getting compilation errors ( Fixed some, but keep on getting errors). Can you upload the compiled grub2 files?
  I will try to replace the compiled 915resolution.c on it, and try to boot and update you guys over the weekend.

Also...Is the display looking bright and crisp after changing to the desired resolution?



Gozali,
  Can you upload the compiled grub2 files? we all can work together to get it solved..

hi cocob,

i haven't installed the grub2 yet, i try to compile the source but i got compilation errors too.. so i asked how about if i install the grub2 using apt, which package do i have to choose?
do you have any suggestion?

[Durga Prasad]

gozali, on Apr 17 2009, 07:08 PM, said:

hi durga,

i'm using ubuntu 8.10, is the 915 patch work if i installed grub2 using apt?
and which package do i have to install, since there is 5 version of grub2

grub-efi - GRand Unified Bootloader, version 2 (EFI version)
grub-ieee1275 - GRand Unified Bootloader, version 2 (Open Firmware version)
grub-linuxbios - GRand Unified Bootloader, version 2 (LinuxBIOS version)
grub-pc - GRand Unified Bootloader, version 2 (PC/BIOS version)
grub2 - GRand Unified Bootloader, version 2 (dummy package)
grub2-splashimages - a collection of great GRUB2 splashimages

thank you for your help

Hi,

Installing grub2 using apt is not going to work. I think, Ubuntu package repository does not have "grub2 with 915resolution".

So, you better take grub2+915resolution source code from http://aur.archlinux...es.php?ID=22927 and compile it.

cocob, on Apr 17 2009, 10:37 PM, said:

Consono / Durga.

   I could not install archlinux due to some installation errors. I have installed Ubuntu ,patched the grub2 and when compiling (using configure), am getting compilation errors ( Fixed some, but keep on getting errors). Can you upload the compiled grub2 files?
  I will try to replace the compiled 915resolution.c on it, and try to boot and update you guys over the weekend.

Also...Is the display looking bright and crisp after changing to the desired resolution?



Gozali,
  Can you upload the compiled grub2 files? we all can work together to get it solved..

Hi,

Even I got the compilation errors while compiling in Ubuntu. Reason is GCC compilers installed on my Ubuntu don't support 32-bit compilation (i.e. gcc does not support -m32 bit flag). So, I compiled it on a different 32 bit linux machine on my network. SCPed compiled files onto my ubuntu machine.

I am really sorry that I have deleted those files.

Consono has given some files. They are very helpful once after compiling new grub.

gozali, on Apr 18 2009, 11:09 AM, said:

hi cocob,

i haven't installed the grub2 yet, i try to compile the source but i got compilation errors too.. so i asked how about if i install the grub2 using apt, which package do i have to choose?
do you have any suggestion?

Hi,

I am attaching my grub2 compiled files. They should be extracted to /home/dpj/grub2 folder. NOTE: In the attached grub2 build,  I have not modified 915resolution.c

For 915resolution.c, 915resolution.mod and grub.cfg, you can look at the zip file sent by Consono.

Attached Files

•  grub2.tar.gz   884.26K   224 downloads

[cocob]

Durga Prasad, on Apr 19 2009, 03:16 AM, said:

Hi,

Installing grub2 using apt is not going to work. I think, Ubuntu package repository does not have "grub2 with 915resolution".

So, you better take grub2+915resolution source code from http://aur.archlinux...es.php?ID=22927 and compile it.



Hi,

Even I got the compilation errors while compiling in Ubuntu. Reason is GCC compilers installed on my Ubuntu don't support 32-bit compilation (i.e. gcc does not support -m32 bit flag). So, I compiled it on a different 32 bit linux machine on my network. SCPed compiled files onto my ubuntu machine.

I am really sorry that I have deleted those files.

Consono has given some files. They are very helpful once after compiling new grub.




Hi,

I am attaching my grub2 compiled files. They should be extracted to /home/dpj/grub2 folder. NOTE: In the attached grub2 build,  I have not modified 915resolution.c

For 915resolution.c, 915resolution.mod and grub.cfg, you can look at the zip file sent by Consono.

Hi,
  Thanks..Since I cant compile as of now, I can replace the mod file with Consono's one in your grub. But I could not find the 915resolution.mod file in your grub2 attachment. Am I missing something? I am novice..

[Durga Prasad]

cocob, on Apr 19 2009, 05:10 PM, said:

Hi,
  Thanks..Since I cant compile as of now, I can replace the mod file with Consono's one in your grub. But I could not find the 915resolution.mod file in your grub2 attachment. Am I missing something? I am novice..

Hi,

I did not put 915resolution.mod in the attachment.

You can find 915resolution.mod, grub.cfg in the 915.zip file sent by "Consono" in one of his previous posts.

[consono]

Durga Prasad, on Apr 19 2009, 09:28 PM, said:

Hi,

I did not put 915resolution.mod in the attachment.

You can find 915resolution.mod, grub.cfg in the 915.zip file sent by "Consono" in one of his previous posts.

It's attached in my april 04. post.