Resolution not changed using xrandr on external monitor

[badviceman]

Hello.
I have a problem.

I have a laptop Thinkpad Edge e330 with Fedora 24 (with gnome) running. And I have a monitor Philips 196V. The monitor is connected using VGA.

The problem is that even if I change resolution to 1366x768 on monitor, it will be reverted to basic 1024x768.

[user01@localhost home]$ lspci -nnk | grep VGA
00:02.0 VGA compatible controller [0300]: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0116] (rev 09)

Adding new resolution:

[user01@localhost X11]# sudo gtf 1366 768 60 -v -x
1: [H PIXELS RND] : 1368.000000
2: [V LINES RND] : 768.000000
3: [V FIELD RATE RQD] : 60.000000
4: [TOP MARGIN (LINES)] : 0.000000
5: [BOT MARGIN (LINES)] : 0.000000
6: [INTERLACE] : 0.000000
7: [H PERIOD EST] : 20.957954
8: [V SYNC+BP] : 26.000000
9: [V BACK PORCH] : 23.000000
10: [TOTAL V LINES] : 795.000000
11: [V FIELD RATE EST] : 60.018341
12: [H PERIOD] : 20.964361
13: [V FIELD RATE] : 60.000000
14: [V FRAME RATE] : 60.000000
15: [LEFT MARGIN (PIXELS)] : 0.000000
16: [RIGHT MARGIN (PIXELS)] : 0.000000
17: [TOTAL ACTIVE PIXELS] : 1368.000000
18: [IDEAL DUTY CYCLE] : 23.710691
19: [H BLANK (PIXELS)] : 432.000000
20: [TOTAL PIXELS] : 1800.000000
21: [PIXEL FREQ] : 85.860001
22: [H FREQ] : 47.699997
17: [H SYNC (PIXELS)] : 144.000000
18: [H FRONT PORCH (PIXELS)] : 72.000000
36: [V ODD FRONT PORCH(LINES)] : 1.000000

# 1368x768 @ 60.00 Hz (GTF) hsync: 47.70 kHz; pclk: 85.86 MHz
Modeline "1368x768_60.00" 85.86 1368 1440 1584 1800 768 769 772 795 -HSync +Vsync

[user01@localhost ~]# sudo xrandr --verbose --newmode "1368x768_60.00" 85.86 1368 1440 1584 1800 768 769 772 795 -HSync +Vsync

[user01@localhost ~]# sudo xrandr --verbose --addmode VGA1 1368x768_60.00

[user@localhost ~]# sudo xrandr --verbose --output VGA1 --primary --mode 1368x768_60.00
screen 0: 1368x768 361x203 mm 96.09dpi
crtc 0: 1368x768_60.00 60.00 +0+0 "VGA1"


But after that the screen was blinking and just revert to 1024x768.

[user01@localhost ~]# sudo xrandr --verbose
Screen 0: minimum 8 x 8, current 1024 x 768, maximum 32767 x 32767
LVDS1 connected (normal left inverted right x axis y axis)
Identifier: 0x42
Timestamp: 3375709
Subpixel: horizontal rgb
Clones:
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
_MUTTER_PRESENTATION_OUTPUT: 0
EDID:
00ffffffffffff0030e4540300000000
00160103801d10780afc359658578e29
1f505400000001010101010101010101
010101010101581b566e500016302424
480025a5100000190000000000000000
00000000000000000000000000fe004c
4720446973706c61790a2020000000fe
004c503133335748322d544c463200ea
BACKLIGHT: 885
range: (0, 4437)
Backlight: 885
range: (0, 4437)
scaling mode: Full aspect
supported: None, Full, Center, Full aspect
1366x768 (0x48) 70.000MHz -HSync -VSync +preferred
h: width 1366 start 1402 end 1438 total 1476 skew 0 clock 47.43KHz
v: height 768 start 772 end 780 total 790 clock 60.03Hz
1280x720 (0x49) 74.480MHz -HSync +VSync
h: width 1280 start 1336 end 1472 total 1664 skew 0 clock 44.76KHz
v: height 720 start 721 end 724 total 746 clock 60.00Hz
1024x768 (0x4a) 65.000MHz -HSync -VSync
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
1024x576 (0x4b) 46.995MHz -HSync +VSync
h: width 1024 start 1064 end 1168 total 1312 skew 0 clock 35.82KHz
v: height 576 start 577 end 580 total 597 clock 60.00Hz
960x540 (0x4c) 40.784MHz -HSync +VSync
h: width 960 start 992 end 1088 total 1216 skew 0 clock 33.54KHz
v: height 540 start 541 end 544 total 559 clock 60.00Hz
800x600 (0x4d) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
800x600 (0x4e) 36.000MHz +HSync +VSync
h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
v: height 600 start 601 end 603 total 625 clock 56.25Hz
864x486 (0x4f) 32.901MHz -HSync +VSync
h: width 864 start 888 end 976 total 1088 skew 0 clock 30.24KHz
v: height 486 start 487 end 490 total 504 clock 60.00Hz
640x480 (0x50) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
720x405 (0x51) 22.176MHz -HSync +VSync
h: width 720 start 728 end 800 total 880 skew 0 clock 25.20KHz
v: height 405 start 406 end 409 total 420 clock 60.00Hz
680x384 (0x52) 19.677MHz -HSync +VSync
h: width 680 start 688 end 752 total 824 skew 0 clock 23.88KHz
v: height 384 start 385 end 388 total 398 clock 60.00Hz
640x360 (0x53) 17.187MHz -HSync +VSync
h: width 640 start 640 end 704 total 768 skew 0 clock 22.38KHz
v: height 360 start 361 end 364 total 373 clock 60.00Hz
DP1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x43
Timestamp: 3375709
Subpixel: unknown
Clones:
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
HDMI1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x44
Timestamp: 3375709
Subpixel: unknown
Clones: VGA1
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
aspect ratio: Automatic
supported: Automatic, 4:3, 16:9
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
audio: auto
supported: force-dvi, off, auto, on
VGA1 connected primary 1024x768+0+0 (0x4a) normal (normal left inverted right x axis y axis) 0mm x 0mm
Identifier: 0x45
Timestamp: 3375709
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones: HDMI1
CRTC: 0
CRTCs: 0 1
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
_MUTTER_PRESENTATION_OUTPUT: 0
1024x768 (0x4a) 65.000MHz -HSync -VSync *current
h: width 1024 start 1048 end 1184 total 1344 skew 0 clock 48.36KHz
v: height 768 start 771 end 777 total 806 clock 60.00Hz
800x600 (0x4d) 40.000MHz +HSync +VSync
h: width 800 start 840 end 968 total 1056 skew 0 clock 37.88KHz
v: height 600 start 601 end 605 total 628 clock 60.32Hz
800x600 (0x4e) 36.000MHz +HSync +VSync
h: width 800 start 824 end 896 total 1024 skew 0 clock 35.16KHz
v: height 600 start 601 end 603 total 625 clock 56.25Hz
848x480 (0x54) 33.750MHz +HSync +VSync
h: width 848 start 864 end 976 total 1088 skew 0 clock 31.02KHz
v: height 480 start 486 end 494 total 517 clock 60.00Hz
640x480 (0x50) 25.175MHz -HSync -VSync
h: width 640 start 656 end 752 total 800 skew 0 clock 31.47KHz
v: height 480 start 490 end 492 total 525 clock 59.94Hz
1368x768_60.00 (0x116) 85.860MHz -HSync +VSync
h: width 1368 start 1440 end 1584 total 1800 skew 0 clock 47.70KHz
v: height 768 start 769 end 772 total 795 clock 60.00Hz
VIRTUAL1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x46
Timestamp: 3375709
Subpixel: no subpixels
Clones:
CRTCs: 2
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:



I didn't find any problems in logs, just the resolution was changed and reverted at the same time:

Feb 12 03:52:16 localhost.localdomain /usr/libexec/gdm-x-session[1424]: (II) intel(0): resizing framebuffer to 1
Feb 12 03:52:16 localhost.localdomain /usr/libexec/gdm-x-session[1424]: (II) intel(0): switch to mode 1368x768@6
Feb 12 03:52:16 localhost.localdomain /usr/libexec/gdm-x-session[1424]: (II) intel(0): resizing framebuffer to 1
Feb 12 03:52:16 localhost.localdomain /usr/libexec/gdm-x-session[1424]: (II) intel(0): switch to mode 1024x768@6


I don't understand how to fix it? It seems that my problem reproduces this http://unix.stackexchange.com/questi...-my-resolution. But there's no fix.

The monitor works well with connection to this laptop via VGA while working with windows 10, I don't think that something with VGA cable.

Please help me.

[bobx001]

Question,

when resizing the screen, can you modify the refresh rate also to say 25Hz or 30 Hz or maybe 50 Hz ? (instead of 60)


Also, I recommend you download yourself another Fedora Live spin, say Xfce , or KDE, and run the live version from the USB stick to see if you can make the monitor work, without affecting your OS in the HDD.

[badviceman]

bobx001, thank you for your answer.

What I've got.
If I try to use 1366x768 with lower refresh rate on gnome (50, 30, 25) -- the situation as in the first post. The monitor is blinked but the resolution was rollbacked.

When I ran a fedora spin with xfce on live cd, I could change my monitor resolution to 1366x768_60.00, it works as it should work.
When I tried to low the refresh rate it appears that my monitor support only 60 Mhz for this resolution.

Anyway, I would like to stay with gnome. Could anybody tell me what should I need to do to make it working on distributive with gnome?

[DBelton]

are you running gdm/gnome under wayland or X? xrandr doesn't work correctly under wayland.

Try logging in to a gnome session using X. You can select it from the drop down menu on the login screen.

[badviceman]

DBelton, hello.

At first, gdm was worked under wayland.
I configured /etc/gdm/custom.conf:

[daemon]
# Uncoment the line below to force the login screen to use Xorg
WaylandEnable=false

After reboot I have

[vaysman@localhost ~]$ loginctl list-sessions
SESSION UID USER SEAT
2 1000 user01 seat0
c1 42 gdm seat0

2 sessions listed.
[user01@localhost ~]$ loginctl show-session 2 -p Type
Type=x11
[user01@localhost ~]$ loginctl show-session c1 -p Type
Type=x11

Now I tried to add new resolution 1366 768 60 to VGA as was written in the first post.
I have the same situation.

[vaysman@localhost ~]$ sudo xrandr --verbose --output VGA1 --mode 1368x768_60.00
screen 0: 1368x768 361x203 mm 96.09dpi
crtc 0: 1368x768_60.00 60.00 +0+0 "VGA1"

The screen is blinked, and after that the resolution was rollback to 1024x768.

Feb 19 12:29:21 localhost.localdomain /usr/libexec/gdm-x-session[1433]: (II) intel(0): resizing framebuffer to 1368x768
Feb 19 12:29:21 localhost.localdomain /usr/libexec/gdm-x-session[1433]: (II) intel(0): switch to mode 1368x768@60.0 on VGA1 using pipe 0, position (0, 0), rotation normal, reflection none
Feb 19 12:29:21 localhost.localdomain /usr/libexec/gdm-x-session[1433]: (II) intel(0): resizing framebuffer to 1024x768
Feb 19 12:29:21 localhost.localdomain /usr/libexec/gdm-x-session[1433]: (II) intel(0): switch to mode 1024x768@60.0 on VGA1 using pipe 0, position (0, 0), rotation normal, reflection none