Re: xrandr: how to tell it that a screen size is supported?
- From: J <dreadpiratejeff@xxxxxxxxx>
- Date: Mon, 7 Jun 2010 17:47:04 -0400
On Mon, Jun 7, 2010 at 15:32, Dotan Cohen <dotancohen@xxxxxxxxx> wrote:
On 7 June 2010 16:33, J <dreadpiratejeff@xxxxxxxxx> wrote:
On Mon, Jun 7, 2010 at 09:04, Dotan Cohen <dotancohen@xxxxxxxxx> wrote:
A: this is because of your KVM. When you boot the machine without the
KVM pointing to the machine, X has no monitor to probe, so it defaults
to a lower safe setting. When your KVM IS pointed to the system in
question, X get's supported modes from the monitor via a DDC probe and
thus, you get full resolution.
I know that! Now, how can I add 1680x1050 as a safe setting?
No need to get snippy ;-) Sorry, I have no way of knowing what you do
and don't know so instead of guessing, I erred on the side of
caution... nothing personal, I just can't read minds these days
The obvious answer to this one is to only boot when the monitor is
connected to the system (e.g. when you have that system switched on
the KVM).
If that were always possible, I would not have posted here!
Again, no need to get snippy. I just said it was the obvious answer,
not the only answer.
However, this is from the man page for xrandr (you should read the man
page, there's a bit of explanation for each xrandr option in there):
Thanks. Actually, I had read the fine manual sometime in the past few
months, I should have gone over it again. Sorry!
No worries... Honestly, I didn't know there was an example at the end
until today. I usually just look at a command synopsis and options...
Heck, I learned something new myself today! :-)
Lets see, if I get this from -q --verbose:
1680x1050 (0x4d) 146.2MHz -HSync +VSync *current +preferred
h: width 1680 start 1784 end 1960 total 2240 skew 0 clock
65.3KHz
v: height 1050 start 1053 end 1059 total 1089 clock
60.0Hz
Then would you agree that this would be the preferred config:
$ sudo xrandr --newmode "1680x1050" 60.0 1680 1784 1960 2240 1050 1053
1059 1089 -hsync +vsync
I'd say that that looks right to me, but YMMV. That's probably what I'd try...
But read that page NoOp linked to... look at the cvt utility...
Using your resolution:
bladernr@klaatu:/var/log$ cvt 1680 1050
# 1680x1050 59.95 Hz (CVT 1.76MA) hsync: 65.29 kHz; pclk: 146.25 MHz
Modeline "1680x1050_60.00" 146.25 1680 1784 1960 2240 1050 1053
1059 1089 -hsync +vsync
Keep in mind, that's from my laptop, so it may be slightly different
on yours (especially the frequency)
But that page is pretty good reading. I learned something else today :-)
That page also explains several ways to persistently set that mode so
hopefully one of those will match your system and you'll be golden.
Cheers
Jeff
--
ubuntu-users mailing list
ubuntu-users@xxxxxxxxxxxxxxxx
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-users
- Follow-Ups:
- Re: xrandr: how to tell it that a screen size is supported?
- From: Dotan Cohen
- Re: xrandr: how to tell it that a screen size is supported?
- References:
- xrandr: how to tell it that a screen size is supported?
- From: Dotan Cohen
- Re: xrandr: how to tell it that a screen size is supported?
- From: J
- Re: xrandr: how to tell it that a screen size is supported?
- From: Dotan Cohen
- xrandr: how to tell it that a screen size is supported?
- Prev by Date: vsftpd creating directories when login with Likewise.
- Next by Date: Re: wacom ctl460 tablet and 10.04
- Previous by thread: Re: xrandr: how to tell it that a screen size is supported?
- Next by thread: Re: xrandr: how to tell it that a screen size is supported?
- Index(es):
Relevant Pages
|
