Wasn't sure if I was supposed to post this under Hardware so posting here...
Device: CuBox-i OS: OpenSuSE 13.1 Uname: Linux CuBox-PC 3.14.14-cubox-i #1 SMP Sat Sep 13 03:48:24 UTC 2014 armv7l armv7l armv7l GNU/Linux Window Manager: XFCE Display Manager: lightdm (*XDM?)
I have a few of these devices in our remote branch office locations for network management and I can connect to them via SSH or VNC. I am using x11vnc for remote vnc access so I can control Screen :0 of the device.
By default the device does not have an xorg.conf file.
So without connecting a monitor to the HDMI port (*which is the only display port), it defaults to 1920x1080. After many many attempts to change the resolution via xrandr I have been unable to do so. I attempted creating new modes for just about every common resolution I can think of using "cvt" and "gtf" but each time it fails to change the resolution.
In reading a few other posts I downloaded and installed the Xorg dummy driver and created an xorg.conf file so it could use the driver. But, the largest display size that would work with this driver was 1024x768. All attempts to add new resolutions and then use them failed. I was able to add new resolutions that display in xrandr's output, but when attempting to switch to them it would fail.
Here's an Example using Default Settings(*i.e. no dummy driver and no xorg.conf file):
Code:
CuBox-PC:~ # xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected 1920x1080+0+0 0mm x 0mm
1920x1080 60.0*
CuBox-PC:~ #
CuBox-PC:~ # cvt 1600 900 60
# 1600x900 59.95 Hz (CVT 1.44M9) hsync: 55.99 kHz; pclk: 118.25 MHz
Modeline "1600x900_60.00" 118.25 1600 1696 1856 2112 900 903 908 934 -hsync +vsync
CuBox-PC:~ #
CuBox-PC:~ # xrandr --newmode "1600x900" 118.25 1600 1696 1856 2112 900 903 908 934 -hsync +vsync
xrandr: Failed to get size of gamma for output default
CuBox-PC:~ # xrandr --addmode default "1600x900"
xrandr: Failed to get size of gamma for output default
CuBox-PC:~ #
CuBox-PC:~ # xrandr --verbose
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1600 x 900, current 1920 x 1080, maximum 1920 x 1080
default connected 1920x1080+0+0 (0x17a) normal (normal) 0mm x 0mm
Identifier: 0x179
Timestamp: 64566553
Subpixel: unknown
Clones:
CRTC: 0
CRTCs: 0
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
1920x1080 (0x17a) 124.4MHz *current
h: width 1920 start 0 end 0 total 1920 skew 0 clock 64.8KHz
v: height 1080 start 0 end 0 total 1080 clock 60.0Hz
1600x900 (0x1cc) 118.2MHz -HSync +VSync
h: width 1600 start 1696 end 1856 total 2112 skew 0 clock 56.0KHz
v: height 900 start 903 end 908 total 934 clock 59.9Hz
CuBox-PC:~ #
CuBox-PC:~ # xrandr --output default --mode 1600x900
xrandr: Failed to get size of gamma for output default
xrandr: Configure crtc 0 failed
CuBox-PC:~ #
I believe the default driver used is something like "mxc_hdmi". I haven't tried creating an xorg.conf file using that as the driver. But, not sure if it would make a difference if it was in a xorg.conf file if it's not working with xrandr...
If anyone has any thoughts or suggestion, it would be greatly appreciated!
I would assume it has a graphics card if it has an HDMI port, right? I've been trying to figure out what the Graphics card is, but the lspci command produces no output at all. I did get output from hwinfo, but the only thing that seems relevant is the driver "mxc_hdmi".
Other then that I'm not really sure.
I found this info below, in the hwinfo output... Sorry, if its not related to what you're asking.
If you have any commands you would like me to run to get you more info, just let me know.
Thanks again for the reply, much appreciated.
-Matt
---------- Post updated at 06:07 PM ---------- Previous update was at 04:10 PM ----------
After just Googling around a bit for the "imx6dl GPU", which you can see in the hwinfo output I posted. It seems like it's part of the Vivante Graphics Card... Does that sound correct?
And after learning Vivante might be the Graphics card, I checked the hwinfo output again and found:
I've been racking my brain trying to find the command I used yesterday, but I cannot seem to find what it was. But I remember running a command yesterday and in the output was "GC880", which in Googling it, its a Vivante imx6 GPU...
-Matt
---------- Post updated at 07:13 PM ---------- Previous update was at 06:07 PM ----------
***UPDATE***
I think I might have figured out a solution..! I'll post back tomorrow with what I did and hopefully someone can tell me if it would/could cause any issues going forward...
Thanks,
Matt
---------- Post updated 04-27-17 at 03:46 PM ---------- Previous update was 04-26-17 at 07:13 PM ----------
So in looking at the Xorg.0.log file I noticed X was looking for display drivers in the directory /usr/lib/xorg/modules/drivers/.
I decided to try the driver located in this directory called fbdev_drv.so in my xorg.conf file. Stopped and Started the Xserver again and this time it now allows me to change the Screen size to almost whatever I want...
Here's my xorg.conf file containing a bunch of Modelines for different resolutions. *Modelines from the "cvt" command...
Dear all
I install Cent OS 5.5 ( Linux OS), with bshell and also Windows OS on the my laptop (ASUA) maximum screen resolution in Windows OS is 1024*760 but in Cent OS 5.5 is 800 *600, I have a program that is necessary to install on Cent OS and I have problem with other Linux distributions... (2 Replies)
I want to install executable file(Demo.bin) on vMA4.0 virtual machine using ssh. Same can be installed on all other Linux/Unix box. but when I am trying to run it on vMA,I am getting the following error--
Could you please advise me how to approch this problem and how to resolve it? (4 Replies)
Hi gurus I have notebook with connected external monitor. output of my xrandr looks like
Screen 0: minimum 320 x 200, current 2960 x 1050, maximum 2960 x 1050
VGA connected 1680x1050+1280+0 (normal left inverted right x axis y axis) 478mm x 300mm
1680x1050 60.0*+
1280x1024 ... (2 Replies)
Hello,
We have a Suse Linux 9.0 box at work and I need to change the video resolution on it. We have command line interface only. Can someone please tell me how to go about doing so?
Thanks, (0 Replies)
Hi all,
i am one of the newbies with linux. i just install the Enterprise AS on my ibm z60t. I am trying to change the color setting to hight resolution, unfortunately, it does not work. it works only with the 256 color setting.
It seems the widescreen or the vga card of my notebook does not... (3 Replies)
I searched and found something about kdmconfig, but it's not installed.
Isn't there an easy way to change the screen resolution in the CDE by right clicking or anything like that (like in Linux's KDE)? (1 Reply)
Hello
I want change my CRT resolution from 1152x900x** to 1280x1024x75 on a Solaris platform but I try "/usr/sbin/m64config" and "/usr/sbin/ffbconfig" command, the both commands failed :-(
In the /dev/fbs/ directory there is juste one file : cgsix0
have you got a solution to my customer... (1 Reply)