How to force video resolution for external touch screen to 800x600 on i915?

[Kevin Beausoleil]

Sorry for posting so much, but i've exhausted the search function and
nothing i am doing is working. I got my external monitor to display
and got it calibrated (thanks @vicky.budhir...@sitarasoft.com) but now
i want to force my resolution to 800x600 from 1024x768. nothing im
writing to the grub menu is working, (video=800x600,
UVESA_MODE=800x600, vga=800x600) and ive tried every single variety
with and without quotes. what am i missing? i just want this monitor
to display in a larger resolution so its easier to navigate in my
car. Pleas help. Its on an intel GMA950 chipset and using the intel
FB and i915 loaded. if i need to list more info let me know. thanks!

[Dan]

If you're building the image yourself - try this in your
BoardConfig.mk

BOARD_KERNEL_CMDLINE += video=LVDS-1:d video=1024x768 i915.modeset=1

or if you're using an iso downloaded - when booting from the grub
menu, edit the kernel line to add: video=LVDS-1:d video=1024x768
i915.modeset=1
(or modeset=0)

One of those should get it.

If I'm not mistaken, the UVESA.... stuff is for the UVESA driver which
you aren't using - you're using the 915 intel one.  if i need to list

[Dan]

oops -

video=LVDS-1:d video=800x600 i915.modeset=1

[Kevin Beausoleil]

Thanks for the reply dan. I have tried both of those configurations,
with modeset=1 and 0 with no result. Only think that changes is the
command prompt when you press alt+f1 from gui. when booting, it shows
the "a n d r o i d eeepc@" in command which does change to 800x600 but
once the GUI loads up, it reverts back to 1024x768. i'm not sure
where to turn at this point.

[Kevin Beausoleil]

can anyone help? im running out of ideas. it works great i just need
the resolution bigger. i tried changing the DPI but it causes the gui
to stop unexpectedly. keeps displaying that error

[Kevin Beausoleil]

anyone have any other advice? this is super frustrating...

On May 10, 5:45 pm, Dan <daniel.naugh...@gmail.com> wrote:

[Anunakin]

try use:

nomodeset UVESA_MODE=800x600

or:

xforcevesa nomodeset UVESA_MODE=800x600

vga param is for boot time only and you need a Linux machine to see correct hex value for 800x600

using this command line:

hwinfo --framebuffer

[Chih-Wei Huang]

2012/5/13 Kevin Beausoleil <kevi...@gmail.com>:

> can anyone help?  im running out of ideas.  it works great i just need
> the resolution bigger.  i tried changing the DPI but it causes the gui
> to stop unexpectedly.  keeps displaying that error

Since you are using i915, the resolution is controlled
by mesa/drm directly. The only way to change resolution
is set the property:

setprop debug.drm.mode 800x600

You may add it to init.rc.

Refer to the doc for how to change resolution
for different framebuffer drivers:

https://docs.google.com/presentation/pub?id=1mUQDFaERipwQQWHiZxmkvwPXNPlqtdv9lXrY5hPoUJ4&start=false&loop=false&delayms=3000

This should be the most complete technical reference
for android-x86 so far.

--
Chih-Wei
Android-x86 project
http://www.android-x86.org

[Kevin Rodriguez Roman]

I was having the same issue with an acer e5-511p that has touch-screen. I wanted to use a VGA external monitor but the internal screen was always on even with "video=LVDS-1:d" , it turns out that the internal screen was not connected to that port (LVDS), so the command didn't work. After checking the devices in /sys/class/drm/ (you can use this to check the video ports and their status: for p in /sys/class/drm/*/status; do con=${p%/status}; echo -n "${con#*/card?-}: "; cat $p; done ) I found another port named eDP-1 . Tried in the kernel arguments with "video=eDP-1:d"  and the laptop screen didn't turn on during boot, Linux took the external screen as primary and set the resolution properly. :)