Ubuntu: Ubuntu 17.04: low screen resolution


I have suffered a change in my screen resolution. I’ve just installed Ubuntu 17.04 (previously Windows), and my screen resolution decreased, and now only allow to select 1024x768 or 800x600 (see capture); I presume it may be a driver problem.

$ lspci      ...  00:1f.5 IDE interface: Intel Corporation 82801JI (ICH10 Family) 2 port SATA IDE Controller #2  [01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. \[AMD/ATI\] RV620 LE \[Radeon HD 3450\][1]  01:00.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] RV620 HDMI Audio [Radeon HD 3450/3470/3550/3570]  03:00.0 FireWire (IEEE 1394): JMicron Technology Corp. IEEE 1394 Host Controller  04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 02)  05:00.0 Network controller: Broadcom Limited BCM4318 [AirForce One 54g] 802.11g Wireless LAN Controller (rev 02)  

I would appreciate any suggestions on how to increase my screen resolution to previous levels.



You can use xrandr to add custom resolution to the problem. Typing $ xrandr on terminal will provide you some details about your current display.
$ cvt 1024 768 if you want to add a resolution configuration for 1024x768. which will give you an output something like this.

# 1024×768 59.92 Hz (CVT 0.79M3) hsync: 47.82 kHz; pclk: 63.50 MHz  Modeline "1024x768_60.00" 63.50 1024 1072 1176 1328 768 771 775 798 -hsync +vsync  

Now create a new modeline

$ xrandr --newmode <Modeline>  

Copy the modeline of the previous output to the place mode line

$ xrandr --newmode "1024x768_60.00"   63.50  1024 1072 1176 1328  768 771 775 798 -hsync +vsync  

Now you need to add the above mode using the following command

$ xrandr --addmode VGA1 1024x768_60.00  

here for VGA1 you have to use what ever that was there for $ xrandr output

$ xrandr --output VGA1 --mode 1024x768_60.00  

Now your resolution should be fixed but this will just long last for your current session. To make it work every time you login you need to create a bash file for it and then add it to startup app list.

Tell me if you need more help.

That being said, it's not the ailment but just a workaround.

Note:If u also have question or solution just comment us below or mail us on toontricks1994@gmail.com
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