640x480 is the only available screen resolusion?

[omania]

Thanks for the help!
Thats a weird thing, when I open laptops lid after hibernation, I suddenly do have  the right resolusion...but when I reboot or restart normal then the resolusion is wrong (xrandr shows only the option of 640x480).

You should post the model number of your Acer computer.  Also post the specs by running the following in a terminal:

Code:

inxi -F

I use Acer Aspire 3630:

Code:

inxi -F
System:    Host: Acer-computer Kernel: 4.4.0-45-generic i686 (32 bit)
           Desktop: Xfce 4.12.3 Distro: Ubuntu 16.04 xenial
Machine:   System: Acer product: Aspire 3630
           Mobo: Acer model: Lugano Bios: Acer v: 3A22 date: 03/20/06
CPU:       Single core Intel Celeron M (-UP-) cache: 1024 KB
           speed: 1499 MHz (max)
Graphics:  Card: Silicon Integrated Systems [SiS] 661/741/760 PCI/AGP or 662/761Gx PCIE VGA Display Adapter
           Display Server: X.Org 1.18.4 drivers: fbdev (unloaded: vesa)
           Resolution: [email protected]
           GLX Renderer: Gallium 0.4 on llvmpipe (LLVM 3.8, 128 bits)
           GLX Version: 3.0 Mesa 11.2.0
Audio:     Card Silicon Integrated Systems [SiS] SiS7012 AC'97 Sound Controller
           driver: snd_intel8x0
           Sound: Advanced Linux Sound Architecture v: k4.4.0-45-generic
Network:   Card-1: Silicon Integrated Systems [SiS] SiS900 PCI Fast Ethernet
           driver: sis900
           IF: enp0s4 state: up speed: 100 Mbps duplex: full
           mac: 00:16:36:35:e2:5e
           Card-2: Broadcom BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller
           driver: b43-pci-bridge
           IF: N/A state: N/A mac: N/A
Drives:    HDD Total Size: 80.0GB (13.4% used)
           ID-1: /dev/sda model: HTS421280H9AT00 size: 80.0GB
Partition: ID-1: / size: 67G used: 3.8G (6%) fs: ext4 dev: /dev/sda1
           ID-2: swap-1 size: 7.04GB used: 0.00GB (0%) fs: swap dev: /dev/sda2
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 52.0C mobo: N/A
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 158 Uptime: 21 min Memory: 392.4/934.1MB
           Client: Shell (bash) inxi: 2.2.35
o

Code:

harry@shop1:~$ xrandr
Screen 0: minimum 8 x 8, current 1024 x 600, maximum 32767 x 32767
LVDS1 connected 1024x600+0+0 (normal left inverted right x axis y axis) 195mm x 113mm
   1024x600      60.00*+
   800x600       60.32    56.25 
   640x480       59.94 
   512x300       60.00 
VGA1 disconnected (normal left inverted right x axis y axis)
VIRTUAL1 disconnected (normal left inverted right x axis y axis)

Above shows available screen resolutions on my 9 inch screen netbook.

If I want to change it to like 800x600

Code:

xrandr -s 800x600

If I want to stick. I put the above command in my Menu, Settings, Session and Startup, Application Autostart tab, click on the Add button. And go from there.

Edit. Or use your help manual or Menu >All settings>Display

I tried your solution but I get this:

Code:

xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 640 x 480, maximum 640 x 480
default connected 640x480+0+0 0mm x 0mm
   640x480       73.00*

Code:

xrandr -s 1024x768
Size 1024x768 not found in available modes

:-\