我正在运行Ubuntu 16.04(开发分支),XFCE作为桌面环境。
我的电脑已连接到两台显示器。一个通过常规VGA电缆连接,另一个通过HDMI切换器连接。该设置可以正常工作,但是每次我临时将HDMI切换器更改为另一个HDMI连接时,Xorg都会检测到显示器已断开连接,并将Xorg重新配置为仅使用一台显示器,将HDMI切换器切换回我的计算机不会重新激活双显示器使用其中之一,我必须手动触发xrandr
如何防止这种自动监视器检测和重新配置的情况发生?我希望能够在计算机不执行任何操作的情况下切换HDMI切换器。
用于还原多显示器设置的命令:
xrandr \
--output HDMI-1 \
--mode "1920x1080" \
--panning "1920x1080+1280+0/0x0+0+0" \
--output DVI-1-I \
--mode "1280x1024" \
--panning "1280x1024/0x0+0+0"
常规使用的xrandr输出:
Screen 0: minimum 320 x 200, current 3200 x 1080, maximum 8192 x 8192
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 connected 1920x1080+1280+0 (normal left inverted right x axis y axis) 443mm x 249mm panning 1920x1080+1280+0
1920x1080 60.00*+ 60.00 50.00 59.94 59.93
1920x1080i 60.00 50.00 59.94
1680x1050 59.95 59.88
1600x1024 60.17
1400x1050 74.76 70.00 59.98
1280x1024 75.02 60.02
1440x900 59.89 59.90
1280x960 60.00
1360x768 59.80 59.96
1280x800 59.91
1152x864 75.00 75.00 70.00 60.00
1280x720 60.00 50.00 59.94
1024x768 60.04 75.03 70.07 60.00
960x720 75.00 60.00
928x696 75.00 60.05
896x672 75.05 60.01
960x600 60.00
832x624 74.55
960x540 59.99
800x600 75.00 70.00 65.00 60.00 72.19 75.00 60.32 56.25
840x525 74.96 69.88 60.01 59.88
720x576 50.00
800x512 60.17
700x525 74.76 70.06 59.98
720x480 60.00 59.94
640x512 75.02 60.02
720x450 59.89
640x480 60.00 72.81 75.00 66.67 60.00 59.94
720x400 70.08
680x384 59.80 59.96
576x432 75.00 75.00 70.00 60.06
512x384 75.03 70.07 60.00
416x312 74.66
400x300 72.19 75.12 60.32 56.34
320x240 72.81 75.00 60.05
DVI-I-1 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 359mm x 287mm
1280x1024 60.02*+ 75.02
1280x960 60.00
1280x800 74.93 59.81
1152x864 75.00
1280x768 74.89 59.87
1280x720 60.00
1024x768 75.08 75.03 70.07 60.00
1024x576 59.97
832x624 74.55
800x600 72.19 75.00 70.01 60.32 56.25
848x480 60.00
640x480 75.00 72.81 66.67 60.00
720x400 70.08
HDMI切换器切换到其他连接时的xrandr输出:
Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 8192 x 8192
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
DVI-I-1 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 359mm x 287mm
1280x1024 60.02*+ 75.02
1280x960 60.00
1280x800 74.93 59.81
1152x864 75.00
1280x768 74.89 59.87
1280x720 60.00
1024x768 75.08 75.03 70.07 60.00
1024x576 59.97
832x624 74.55
800x600 72.19 75.00 70.01 60.32 56.25
848x480 60.00
640x480 75.00 72.81 66.67 60.00
720x400 70.08
我尝试了一些其他操作:
连接监视器后,找出模型:
$ xvidtune -show
"1920x1080" 148.50 1920 2008 2052 2200 1080 1084 1089 1125 -hsync +vsync
然后在监视器断开的情况下:
$ xrandr --newmode "1920x1080-new" 148.50 1920 2008 2052 2200 1080 1084 1089 1125 -hsync +vsync
$ xrandr --addmode HDMI-1 1920x1080-new
$ xrandr --output HDMI-1 --mode 1920x1080-new
这使我可以在断开连接时激活显示器,否则将由于不存在1920x1080模式而失败。但是问题仍然存在,即使我将其切换为自定义模式,如果我切换HDMI切换器,显示屏也会被禁用。
与HDMI切换器断开显示器连接时,这是udev事件:
$ udevadm monitor --property
monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent
KERNEL[41678.571099] change /devices/pci0000:00/0000:00:02.0/0000:01:00.0/drm/card0 (drm)
ACTION=change
DEVNAME=/dev/dri/card0
DEVPATH=/devices/pci0000:00/0000:00:02.0/0000:01:00.0/drm/card0
DEVTYPE=drm_minor
HOTPLUG=1
MAJOR=226
MINOR=0
SEQNUM=3248
SUBSYSTEM=drm
UDEV [41678.573432] change /devices/pci0000:00/0000:00:02.0/0000:01:00.0/drm/card0 (drm)
ACTION=change
DEVNAME=/dev/dri/card0
DEVPATH=/devices/pci0000:00/0000:00:02.0/0000:01:00.0/drm/card0
DEVTYPE=drm_minor
HOTPLUG=1
ID_FOR_SEAT=drm-pci-0000_01_00_0
ID_PATH=pci-0000:01:00.0
ID_PATH_TAG=pci-0000_01_00_0
MAJOR=226
MINOR=0
SEQNUM=3248
SUBSYSTEM=drm
TAGS=:uaccess:master-of-seat:seat:
USEC_INITIALIZED=31279519
当使用HDMI切换器重新启用显示时,这是udev事件:
$ udevadm monitor --property
monitor will print the received events for:
UDEV - the event which udev sends out after rule processing
KERNEL - the kernel uevent
KERNEL[41696.104481] change /devices/pci0000:00/0000:00:02.0/0000:01:00.0/drm/card0 (drm)
ACTION=change
DEVNAME=/dev/dri/card0
DEVPATH=/devices/pci0000:00/0000:00:02.0/0000:01:00.0/drm/card0
DEVTYPE=drm_minor
HOTPLUG=1
MAJOR=226
MINOR=0
SEQNUM=3249
SUBSYSTEM=drm
UDEV [41696.105685] change /devices/pci0000:00/0000:00:02.0/0000:01:00.0/drm/card0 (drm)
ACTION=change
DEVNAME=/dev/dri/card0
DEVPATH=/devices/pci0000:00/0000:00:02.0/0000:01:00.0/drm/card0
DEVTYPE=drm_minor
HOTPLUG=1
ID_FOR_SEAT=drm-pci-0000_01_00_0
ID_PATH=pci-0000:01:00.0
ID_PATH_TAG=pci-0000_01_00_0
MAJOR=226
MINOR=0
SEQNUM=3249
SUBSYSTEM=drm
TAGS=:seat:master-of-seat:uaccess:
USEC_INITIALIZED=31279519
。
$ sudo lshw -c display
*-display
description: VGA compatible controller
product: Redwood XT [Radeon HD 5670/5690/5730]
vendor: Advanced Micro Devices, Inc. [AMD/ATI]
physical id: 0
bus info: pci@0000:01:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm pciexpress msi vga_controller bus_master cap_list rom
configuration: driver=radeon latency=0
resources: irq:55 memory:c0000000-cfffffff memory:fea20000-fea3ffff ioport:e000(size=256) memory:c0000-dffff
更新了帖子。但是我不想只是自动恢复配置,我希望它不会在一开始就被弄乱。
—
Grumbel '16
除非您找到可以解决该问题的图形驱动程序,否则这很可能无法实现。该问题是由于以下事实引起的:驱动程序和屏幕之间的通信在连接时失败,跳至默认值。您需要某种操作,通过快捷键或自动执行。选个好东西,把它弄脏或根本不去:)
—
Jacob Vlijm 2016年
@Grumbel,您能将输出添加
—
找到
sudo lshw -c display
到问题中吗?如果您有nvidia,请尝试在askubuntu.com/q/858798/26246中
xrandr
重新连接时列在其中?您能否发布xrandr
设置如您所愿的输出?然后,我们可以轻松地使其重新连接时自动恢复。另外,xrandr
“ 手动触发 ”的命令是什么。