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Zomzilla  
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 More options Apr 5 2012, 4:27 am
From: Zomzilla <cjohnpritch...@gmail.com>
Date: Thu, 5 Apr 2012 01:27:00 -0700 (PDT)
Subject: changing screen resolution?
hi all,

i've recently started playing around with some builds by Hexxeh and am
amazed at the quality of the OS.

the only problem is that i cannot find a way to change the screen
resolution: nothing in the settings tab, cannot edit xorg.conf when i
drop to prompt (system is mounted read only) and when i open the
terminal thingy with ctrl+alt+T all the commands can apparently not be
found

help anyone? i'd love to get this sorted so i can start to play around
with the code :)

Zom


 
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Sean Paul  
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 More options Apr 5 2012, 9:37 am
From: Sean Paul <seanp...@chromium.org>
Date: Thu, 5 Apr 2012 09:37:33 -0400
Local: Thurs, Apr 5 2012 9:37 am
Subject: Re: [cros-discuss] changing screen resolution?

On Thu, Apr 5, 2012 at 4:27 AM, Zomzilla <cjohnpritch...@gmail.com> wrote:
> hi all,

> i've recently started playing around with some builds by Hexxeh and am
> amazed at the quality of the OS.

> the only problem is that i cannot find a way to change the screen
> resolution: nothing in the settings tab, cannot edit xorg.conf when i
> drop to prompt (system is mounted read only) and when i open the
> terminal thingy with ctrl+alt+T all the commands can apparently not be
> found

Ctrl+Alt+T drops you into crosh, from there, type "shell" to get to a
proper bash prompt. Alternatively, you can a prompt directly by
switching to VT2 (Ctrl+Alt+F2, Ctrl+Alt+F1 to get back to ui).

From there, you can remount your root partition "mount -n -o
remount,rw /" and edit the xorg.conf file or play around with xrandr,
etc..

Check out http://www.chromium.org/chromium-os/poking-around-your-chrome-os-device,
all the info is there.

Hope this helps!

Sean


 
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Zomzilla  
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 More options Apr 5 2012, 10:10 am
From: Zomzilla <cjohnpritch...@gmail.com>
Date: Thu, 5 Apr 2012 07:10:34 -0700 (PDT)
Local: Thurs, Apr 5 2012 10:10 am
Subject: Re: changing screen resolution?
Thanks very much; I didn't realize I would need to enter the sheet
with a command

And thanks for the link :)


 
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Jonathan Kliegman  
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 More options Apr 5 2012, 10:14 am
From: Jonathan Kliegman <kli...@chromium.org>
Date: Thu, 5 Apr 2012 10:14:25 -0400
Local: Thurs, Apr 5 2012 10:14 am
Subject: Re: [cros-discuss] Re: changing screen resolution?

As a one off for changing resolution, once you've got a bash prompt you can
run:
DISPLAY=:0 xrandr -s 1920x1200

Or whatever resolution you want.


 
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Zomzilla  
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 More options Apr 5 2012, 12:18 pm
From: Zomzilla <cjohnpritch...@gmail.com>
Date: Thu, 5 Apr 2012 09:18:58 -0700 (PDT)
Local: Thurs, Apr 5 2012 12:18 pm
Subject: Re: changing screen resolution?
Actually I'm having some more trouble with this:

All other distro's have detected my resolution just fine, yet chromium
has put it at 1024x768

I tried editing xorg.conf, yet on reboot the changes were gone again
(I had mounted the filesystem RW)

How should I change my resolution to 1366x768?

Using a Dell laptop with ATI radon card if it helps

Oh and xrandr gives me an error( failed to get size of gamma for
output default)


 
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Jonathan Kliegman  
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 More options Apr 5 2012, 12:41 pm
From: Jonathan Kliegman <kli...@chromium.org>
Date: Thu, 5 Apr 2012 12:41:18 -0400
Local: Thurs, Apr 5 2012 12:41 pm
Subject: Re: [cros-discuss] Re: changing screen resolution?

xorg.conf shouldn't reset on reboot - that seems odd. Are you sure you
switched it to read-write properly and the editor was able to save?  Its
probably worth double checking this - I've made this mistake in the past
where the file didn't get saved like I thought it did.

I believe I've seen some bugs in the past on monitors underreporting their
resolutions but those were usually for external displays with some weird
chain of cables.    If other distros are able to detect your card fine it
seems like ChromiumOS should.  The only thing I can think of is if you have
different drivers which are doing odd things.  I haven't done much with
video drivers (well, anything) so I'm not sure of the state of that device
on ChromiumOS - Hexxeh might know better.


 
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Zomzilla  
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 More options Apr 5 2012, 12:47 pm
From: Zomzilla <cjohnpritch...@gmail.com>
Date: Thu, 5 Apr 2012 09:47:02 -0700 (PDT)
Local: Thurs, Apr 5 2012 12:47 pm
Subject: Re: changing screen resolution?
Well maybe I should try again; I used a couple methods to switch to RW
yet both times the editor saved; when I checked after saving the
changes were still present. Is most odd.

 
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Jonathan Kliegman  
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 More options Apr 5 2012, 1:04 pm
From: Jonathan Kliegman <kli...@chromium.org>
Date: Thu, 5 Apr 2012 13:04:42 -0400
Local: Thurs, Apr 5 2012 1:04 pm
Subject: Re: [cros-discuss] Re: changing screen resolution?

Oh wait.

You're using Hexxeh's build?  I seem to recall a hack he mentioned a few
months ago where he would modify the xorg.conf at boot time to do something
with device detection based on what video card was in use.  But I can't
recall exactly why. So its possible that his build is regenerating
xorg.conf and clobbering your changes.

I could be wrong or misremembering though - I'll see what I can find out.
 I don't have a copy of his builds to check on.  You might want to look in
/etc/init for any scripts that modify xorg.conf there though.


 
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Jonathan Kliegman  
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 More options Apr 5 2012, 1:10 pm
From: Jonathan Kliegman <kli...@chromium.org>
Date: Thu, 5 Apr 2012 13:10:20 -0400
Local: Thurs, Apr 5 2012 1:10 pm
Subject: Re: [cros-discuss] Re: changing screen resolution?

OK - Hexxeh just confirmed he does that.  He said disabling the
chromeos-lime initscript would prevent it getting modified.  I assume that
file would be /etc/init/chromeos-lime.conf and you can then comment out the
'start on ...' line).

On Thu, Apr 5, 2012 at 1:04 PM, Jonathan Kliegman <kli...@chromium.org>wrote:


 
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Zomzilla  
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 More options Apr 5 2012, 1:21 pm
From: Zomzilla <cjohnpritch...@gmail.com>
Date: Thu, 5 Apr 2012 10:21:47 -0700 (PDT)
Local: Thurs, Apr 5 2012 1:21 pm
Subject: Re: changing screen resolution?
Ok I'll sort all that out later: thanks for all the help with this,
I'll be adding this issue to my list of tweaks to make (chromeOS
graphics seems to be in a bit of a state from what I've seen)

 
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Daouda Williams  
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 More options Jul 27 2012, 2:09 pm
From: Daouda Williams <daoudawilli...@gmail.com>
Date: Fri, 27 Jul 2012 11:09:52 -0700 (PDT)
Local: Fri, Jul 27 2012 2:09 pm
Subject: Re: changing screen resolution?

Hey guys I recently downloaded chrome os, it's giving me this problem on my
dell Inspiron mini 9. And also you should know this via usb thumb drive.
When it boots up the screen shows up and then goes blank, maybe you guys
could help  me, Its on a 800x600 resolution and my computer shows 1024x900.


 
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Petar Vasilev  
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 More options Mar 10, 11:17 am
From: Petar Vasilev <peter.v.vasi...@gmail.com>
Date: Sun, 10 Mar 2013 08:17:56 -0700 (PDT)
Local: Sun, Mar 10 2013 11:17 am
Subject: Re: changing screen resolution?

Hi Guys, I am having problem with setting the resolution when Chrome OS is
running in VirtualBox. I am trying to use xrandr but I always get:

Failed to get size of gamma for output default

From what I've managed to gather I need to edit xorg.conf manually but am
not sure how. Any help appreciated


 
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Steve Pirk  
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 More options Mar 10, 1:55 pm
From: Steve Pirk <pirks...@gmail.com>
Date: Sun, 10 Mar 2013 10:55:02 -0700
Local: Sun, Mar 10 2013 1:55 pm
Subject: Re: [cros-discuss] Re: changing screen resolution?

xorg.conf should be in /etc/X11. You will need to use sudo to edit it. Not
sure what changes need to be made though, so hopefully the innfo you have
found will give you an idea.

-- steve <http://pirk.com>

On Sun, Mar 10, 2013 at 8:17 AM, Petar Vasilev <peter.v.vasi...@gmail.com>wrote:


 
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Petar Vasilev  
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 More options Mar 10, 2:06 pm
From: Petar Vasilev <peter.v.vasi...@gmail.com>
Date: Sun, 10 Mar 2013 11:06:21 -0700 (PDT)
Local: Sun, Mar 10 2013 2:06 pm
Subject: Re: [cros-discuss] Re: changing screen resolution?

Well, the problem is I am not sure what I need to change in xorg.conf .
I've been trying but failed so far.


 
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