Ubuntu 16.04.3 LTS + lg-29UM58-P (ultrawide 21:9 2560x1080)
When I set the update frequency to 50Hz, the monitor started working correctly.
Steps:
First, check the options to be set given the resolution and frequency:
gtf 2560 1080 50
It will output something like:
# 2560x1080 @ 50.00 Hz (GTF) hsync: 55.60 kHz; pclk: 188.60 MHz
Modeline "2560x1080_50.00" 188.60 2560 2704 2976 3392 1080 1081 1084 1112 -HSync +Vsync
Then, use this information to create a new xrandr
mode:
xrandr --newmode "TEST" 188.60 2560 2704 2976 3392 1080 1081 1084 1112 -HSync +Vsync
xrandr --addmode HDMI-3 "TEST"
xrandr --output HDMI-3 --mode "TEST"
You can also add a script to autoload this configuration at system boot time. I got the script from Script for autoloading resolution. You can create the file ~/.xprofile
with the content (replace where needed):
#!/bin/sh
MODE_NAME="ULTRAWIDE"
OUTPUT="HDMI-3"
CONNECTED_OUTPUT=$(xrandr --current | grep -i $OUTPUT | cut -f2 -d' ')
if [ "$CONNECTED_OUTPUT" == "connected" ]; then
# SET 2560x1080 50 HZ
xrandr --newmode "$MODE_NAME" 188.60 2560 2704 2976 3392 1080 1081 1084 1112 -HSync +Vsync
xrandr --addmode "$OUTPUT" "$MODE_NAME"
else
echo "ULTRAWIDE IS NOT DETECTED !"
fi
Kirill Tolmachev
Updated on September 18, 2022Comments
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Kirill Tolmachev over 1 year
I can't change resolution 2560x1080.
Notebook HP Probook 6560B. (i5 2540m, integrated graphics intel hd3000)
The Notebook has only integrated graphics card.
Monitor connected via cable Display Port => HDMI.
In settings, I have only full-hd resolution 1920x1080.
Settings is not has 2560x1080 resolution.
I installed proprietary drivers from intel site => Intel graphics utility for 16.04
I tried set custom resolution from this link => set custom resolution
Output from xrandr =>
Screen 0: minimum 320 x 200, current 3286 x 1080, maximum 8192 x 8192 LVDS-1 connected primary 1366x768+1920+0 (normal left inverted right x axis y axis) 344mm x 194mm 1366x768 59.99*+ 39.94 1360x768 59.80 59.96 1024x768 60.04 60.00 960x720 60.00 928x696 60.05 896x672 60.01 960x600 60.00 960x540 59.99 800x600 60.00 60.32 56.25 840x525 60.01 59.88 800x512 60.17 700x525 59.98 640x512 60.02 720x450 59.89 640x480 60.00 59.94 680x384 59.80 59.96 576x432 60.06 512x384 60.00 400x300 60.32 56.34 320x240 60.05 VGA-1 disconnected (normal left inverted right x axis y axis) HDMI-1 disconnected (normal left inverted right x axis y axis) DP-1 disconnected (normal left inverted right x axis y axis) HDMI-2 disconnected (normal left inverted right x axis y axis) HDMI-3 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 673mm x 284mm 1920x1080 60.00* 50.00 59.94 1920x1080i 60.00 50.00 59.94 1680x1050 59.88 1600x900 60.00 1280x1024 75.02 60.02 1152x864 75.00 1280x720 60.00 50.00 59.94 1024x768 75.03 60.00 800x600 75.00 60.32 720x576 50.00 720x480 60.00 59.94 640x480 75.00 60.00 59.94 720x400 70.08 DP-2 disconnected (normal left inverted right x axis y axis) DP-3 disconnected (normal left inverted right x axis y axis)
My steps:
gtf 2560 1080 60 xrandr --newmode "TEST" 230.76 2560 2728 3000 3440 1080 1081 1084 1118 -HSync +Vsync xrandr --addmode HDMI-3 "TEST" xrandr --output HDMI-3 --mode "TEST"
After these steps resolution not changed.
xrandr with verbose:
xrandr --output HDMI-3 --mode "TEST" --verbose crtc 1: TEST 60.00 +0+0 "HDMI-3" xrandr: Configure crtc 1 failed crtc 0: disable crtc 1: disable screen 0: revert crtc 0: revert crtc 1: revert
In the settings appears resolution for 2560x1080, and when I trying set this resolution, the image is becoming broken and appearing two errors.
New resolution =>
First Error =>
Second Error =>
Also, I tried to connect via ATcom adapter, and I didn't get the result. Resolution left to 1920x1080.
I installed windows 7 on this notebook and drivers for video card. The monitor is working correctly with resolution 2560x1080.
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dobey over 6 yearsHow much memory is assigned to graphics in your BIOS configuration? You may not have enough assigned to support the higher resolution. Also, this may be a bug in the Intel drivers that just has not been hit with that CPU by anyone else yet, and should likely be reported upstream.
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Kirill Tolmachev over 6 yearsSolved. I set the refresh rate to 50 Hz, and the monitor is started working correctly. gtf 2560 1080 50 xrandr --newmode "TEST" 188.60 2560 2704 2976 3392 1080 1081 1084 1112 -HSync +Vsync xrandr --addmode HDMI-3 "TEST" xrandr --output HDMI-3 --mode "TEST"
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fkraiem over 6 yearsDo not add [solved] to the title or post the answer in the question; that's not how things work here. If you have an answer, post it as one.
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Kirill Tolmachev over 6 yearsI added the answer.
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angelcervera over 5 yearsNo working for me :( => xrandr: Configure crtc 2 failed
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bluelurker almost 3 yearsI am glad I found this post. I had to lower the refresh rate to 50 to make it work. It didn't work at 60Hz. It's probably I have weak HD4000 graphics