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f474a
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Joined: 05 Jul 2017
Posts: 6

PostPosted: Sun Jul 09, 2017 9:32 am    Post subject: Monitor Issues Reply with quote

I bought a new 21' wide screen LED monitor from LG (flatron e2241)

After connecting to my laptop I don't see any resolutions higher than 1024x768.

I've played around with xrandr and cvt, and was able to configure 1366x768 (max resolution supported by my laptop display). Still the screen is like stretched around (due to it being widescreen), fonts look a bit blurry etc.

I tried going for 1920x1080 resolution, but it only shows part of the screen and wasn't able to get it to work properly.

This is what I have currently without manually adding additional display modes

Code:

Screen 0: minimum 320 x 200, current 1024 x 768, maximum 8192 x 8192
LVDS-1 connected primary (normal left inverted right x axis y axis)
   1366x768      60.06 +
   1024x768      60.04    60.00 
   960x720       60.00 
   928x696       60.05 
   896x672       60.01 
   800x600       60.00    60.32    56.25 
   700x525       59.98 
   640x512       60.02 
   640x480       60.00    59.94 
   512x384       60.00 
   400x300       60.32    56.34 
   320x240       60.05 
VGA-1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768      60.00*
   800x600       60.32    56.25 
   848x480       60.00 
   640x480       59.94 
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-1 disconnected (normal left inverted right x axis y axis)


My laptop has hybrid graphics with radeon & intel, not sure if it is possible to take full advantage of my monitors resolution.

Please advise, thanks.
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Etal
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Joined: 15 Jul 2005
Posts: 1682

PostPosted: Sun Jul 09, 2017 2:25 pm    Post subject: Reply with quote

Why would you connect through VGA? Do you have the same issue when connecting through HDMI?
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f474a
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Joined: 05 Jul 2017
Posts: 6

PostPosted: Wed Jul 12, 2017 1:06 pm    Post subject: Reply with quote

Switching to HDMI made things a bit better, fonts are crisp and max resolution of my laptop display works perfectly on the external monitor.

Other than that, 1920x1080p display has a few issues but I was able to get it fixed earlier but after some xorg / kernel config changes things the issues started

Properties of xrandr

Code:

# xrandr --prop                                                                                                                 
Screen 0: minimum 320 x 200, current 1360 x 768, maximum 8192 x 8192
LVDS-1 connected primary (normal left inverted right x axis y axis)
   EDID:
      00ffffffffffff0006af3c3100000000
      00160103801f11780a10b59758579226
      1e505400000001010101010101010101
      0101010101019e1b567c500016302616
      360035ad100000180000000f00000000
      00000000000000000020000000fe0041
      554f0a202020202020202020000000fe
      004231343058544e30332e31200a006f
   scaling mode: Full aspect
      supported: None, Full, Center, Full aspect
   1366x768      60.06 +
   1024x768      60.04    60.00 
   960x720       60.00 
   928x696       60.05 
   896x672       60.01 
   800x600       60.00    60.32    56.25 
   700x525       59.98 
   640x512       60.02 
   640x480       60.00    59.94 
   512x384       60.00 
   400x300       60.32    56.34 
   320x240       60.05 
VGA-1 disconnected (normal left inverted right x axis y axis)
   1368x768_60.00  59.88 
HDMI-1 connected 1360x768+0+0 (normal left inverted right x axis y axis) 256mm x 192mm
   EDID:
      00ffffffffffff0004ef010031304e43
      2d170103a01e1761eae4de9e544a9723
      1c4c5400080081808140810001019500
      01010101010164190040410026301888
      360000c010000018023a801871382d40
      582c4500dd0c1100001e662150b05100
      1b304070360032313400001e000000fa
      00819981c081fc01010101950f0a013c
      02031b61230907078301000067030c00
      2000802d43908402e2000f8c0ad08a20
      e02d10103e9600a05a00000000000000
      00000000000000000000000000000000
      00000000000000000000000000000000
      00000000000000000000000000000000
      00000000000000000000000000000000
      00000000000000000000000000000029
   aspect ratio: Automatic
      supported: Automatic, 4:3, 16:9
   Broadcast RGB: Full
      supported: Automatic, Full, Limited 16:235
   audio: off
      supported: force-dvi, off, auto, on
   1024x768      60.00 +
   1920x1080     60.00    59.94 
   1280x1024     85.02    60.02 
   1440x900      74.98    59.90 
   1280x960      60.00 
   1360x768      60.02*
   1280x800      59.91 
   1280x720     119.99    60.00    59.94 
   720x480       60.00    59.94 
   1920x1080R    59.93 
DP-1 disconnected (normal left inverted right x axis y axis)
   Broadcast RGB: Automatic
      supported: Automatic, Full, Limited 16:235
   audio: auto
      supported: force-dvi, off, auto, on




As for how it looks like in 1920x1080p

http://imgur.com/a/H2TE7

I have limited experience with xrandr, tried to learn as much as I could on my own but I'm not sure if I should spend more time messing around with the flags --panning, --scale, etc.

What do you guys think?
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genterminl
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Joined: 12 Feb 2005
Posts: 482
Location: Connecticut, USA

PostPosted: Wed Jul 12, 2017 4:30 pm    Post subject: Reply with quote

It seems odd to me that the output for LVDS-1 does not show a current resolution, but that may not be important. It also looks like the external display is showing the same thing as the laptop display, not an extended screen. Have you tried using the --right-of or --left-of options in xrandr?
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