Can't reduce screen resolution under linux

userHead StanislavRubtsov 2023-01-27 08:38:20 593 Views1 Replies

Hi, I own LattePanda 3 Delta. After intstalling kali linux I have automatically set maximum resolution for my screen 1920x1080, but I can't reduce it's to small to work with. I have other options in gui and xrandr but it reverts same time I switched it. I tried to set GRUB_GFXMODE=1280x720 but it work at grub menu only. when using same screen and kali distro with raspberryPi have no this issue. here is my sets and logs when switching resolution:

 

 
# xrandr -q                                                 
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
HDMI-2 connected 1920x1080+0+0 (normal left inverted right x axis y axis) 532mm x 299mm
  1920x1080     60.00*+  50.00    59.94  
  1920x1080i    60.00    50.00    59.94  
  1680x1050     59.88  
  1280x1024     75.02    60.02  
  1440x900      59.90  
  1280x960      60.00  
  1366x768      59.96  
  1280x800      59.91  
  1152x864      75.00  
  1280x720      60.00    50.00    59.94  
  1024x768      75.03    70.07    60.00  
  832x624       74.55  
  800x600       72.19    75.00    60.32    56.25  
  720x576       50.00  
  720x480       60.00    59.94  
  640x480       75.00    72.81    60.00    59.94  
  720x400       70.08  
 

 

# xrandr --verbose --output HDMI-2 --mode 1280x720 --rate 60
crtc 0: disable
screen 0: 1280x720 338x190 mm  95.92dpi
crtc 0:     1280x720  60.00 +0+0 "HDMI-2"

 

# /var/log/Xorg.0.log
[  1191.544] (II) modeset(0): Allocate new frame buffer 1280x720 stride
[  1192.146] (II) modeset(0): EDID vendor "FHD", prod id 4224
[  1192.146] (II) modeset(0): Using hsync ranges from config file
[  1192.146] (II) modeset(0): Using vrefresh ranges from config file
[  1192.146] (II) modeset(0): Printing DDC gathered Modelines:
[  1192.146] (II) modeset(0): Modeline "1920x1080"x0.0  148.50  1920 2008 2052 2200  1080 1084 1089 1125 +hsync +vsync (67.5 kHz eP)
[  1192.146] (II) modeset(0): Modeline "1366x768"x0.0   85.75  1366 1436 1579 1792  768 771 774 798 +hsync +vsync (47.9 kHz e)
.... and right after it reverts....

[  1192.186] (II) modeset(0): Allocate new frame buffer 1920x1080 stride
[  1192.297] (II) modeset(0): EDID vendor "FHD", prod id 4224
[  1192.298] (II) modeset(0): Using hsync ranges from config file
[  1192.298] (II) modeset(0): Using vrefresh ranges from config file
[  1192.298] (II) modeset(0): Printing DDC gathered Modelines:
[  1192.298] (II) modeset(0): Modeline "1920x1080"x0.0  148.50  1920 2008 2052 2200  1080 1084 1089 1125 +hsync +vsync (67.5 kHz eP)
[  1192.298] (II) modeset(0): Modeline "1366x768"x0.0   85.75  1366 1436 1579 1792  768 771 774 798 +hsync +vsync (47.9 kHz e)

 

# xrandr --verbose -s 1280x720 --rate 60 
SZ:    Pixels          Physical       Refresh
*0   1920 x 1080   ( 532mm x 299mm )  *60   50   30   25  
1   1680 x 1050   ( 532mm x 299mm )   60  
2   1280 x 1024   ( 532mm x 299mm )   75   60  
3   1440 x 900    ( 532mm x 299mm )   60  
4   1280 x 960    ( 532mm x 299mm )   60  
5   1366 x 768    ( 532mm x 299mm )   60  
6   1280 x 800    ( 532mm x 299mm )   60  
7   1152 x 864    ( 532mm x 299mm )   75  
8   1280 x 720    ( 532mm x 299mm )   60   50  
9   1024 x 768    ( 532mm x 299mm )   75   70   60  
10   832 x 624    ( 532mm x 299mm )   75  
11   800 x 600    ( 532mm x 299mm )   72   75   60   56  
12   720 x 576    ( 532mm x 299mm )   50  
13   720 x 480    ( 532mm x 299mm )   60  
14   640 x 480    ( 532mm x 299mm )   75   73   60  
15   720 x 400    ( 532mm x 299mm )   70  
Current rotation - normal
Current reflection - none
Rotations possible - normal left inverted right 
Reflections possible - X Axis Y Axis
Setting size to 8, rotation to normal
Setting reflection on neither axis
Event received, type = 89
Got a screen change notify event!
window = 1896
root = 1896
size_index = 65535
rotation 1
timestamp = 3221334, config_timestamp = 3221289
Rotation = 1
1920 X 1080 pixels, 508 X 286 mm
Display width   1920, height   1080
Display widthmm 508, heightmm 286
new Subpixel rendering model is unknown
 

 

any help please