getting 1024*768 resolution after installing DEBIAN JESSIE

manashpal · 01-10-2017, 10:29 AM

after installing Debian Jessie 8.6 my accer monitor cannot detected and I am getting 1024*768 output from the system. But, I should get 1366*768 screen resolution.

but, the previous other distros ( ubuntu, fedora, kali linux, and others) did not give such problem to me.

I am little bit confused and seeking assistance from the forum that what steps should I follow now.

please let me know. I am attaching the terminal output.

hazel · 01-10-2017, 10:46 AM

Have you tried using that monitor profile dialog to reset the resolution to the correct value? I notice there's a resolution spin box in the top right-hand corner.

cynwulf · 01-10-2017, 11:22 AM

You seem to be running X as root.

jamison20000e · 01-10-2017, 12:03 PM

Hi.

A quick search for wrong resolution DEBIAN JESSIE may find what you need?

BW-userx · 01-10-2017, 12:21 PM

do a query and see if Debian has installed the drivers for your actual ATI and not the default VGA drivers or take a shot in the dark and tell Debian to install your ATI video drivers by whatever name Debian uses to indicate said drivers.

rokytnji · 01-10-2017, 01:35 PM

Run

Code:

xrandr -s 1366x768

in terminal. Does your resolution then change to that setting?

Code:

$ xrandr -help
usage: xrandr [options]
  where options are:
  --display <display> or -d <display>
  --help
  -o <normal,inverted,left,right,0,1,2,3>
            or --orientation <normal,inverted,left,right,0,1,2,3>
  -q        or --query
  -s <size>/<width>x<height> or --size <size>/<width>x<height>

manashpal · 01-10-2017, 02:16 PM

Quote:

Originally Posted by hazel

Have you tried using that monitor profile dialog to reset the resolution to the correct value? I notice there's a resolution spin box in the top right-hand corner.

Yes, I have sharpely reviewed every options, but nothing came to me with my desired screen resolution. Most of all My monitor is not getting detected.

manashpal · 01-10-2017, 11:23 PM

Quote:

Originally Posted by rokytnji

Run

Code:

xrandr -s 1366x768

in terminal. Does your resolution then change to that setting?

Code:

$ xrandr -help
usage: xrandr [options]
  where options are:
  --display <display> or -d <display>
  --help
  -o <normal,inverted,left,right,0,1,2,3>
            or --orientation <normal,inverted,left,right,0,1,2,3>
  -q        or --query
  -s <size>/<width>x<height> or --size <size>/<width>x<height>

Terminal output is : Size 1366x768 not found in available modes

Jjanel · 01-11-2017, 01:15 AM

A web-search of that error message returns a lot of things; do any of them help?
web-search: Size 1366x768 not found in available modes

ferrari · 01-11-2017, 01:31 AM

It would be useful to see more info about your graphics hardware

Code:

lshw -c video

Code:

/sbin/lspci -nnk|grep '\[03' -A2

Examine Xorg.0.log to determine which video driver is in use, and given that the display mode is 1024x768 it may well be that a basic framebuffer driver is loaded. For example, this can filter modules that were loaded/unloaded (assuming /var/log/Xorg.0.log)

Code:

egrep 'Load|Unload' /var/log/Xorg.0.log

ferrari · 01-11-2017, 01:39 AM

Also, the boot parameters in use (eg 'nomodeset' present?)

Code:

cat /proc/cmdline

cynwulf · 01-11-2017, 10:55 AM

Or you could not run X as root and read this:

https://wiki.debian.org/AtiHowTo