我有一个DELL U2410显示器连接到配备有集成AMD / ATI显卡(AMD E-350)的Compaq 100B台式机。安装的操作系统是Ubuntu 10.04 LTS。
计算机通过DVI连接器连接到显示器。
问题是我无法将桌面分辨率设置为原始1920x1200。允许的最大分辨率为1600x1200。
做一些有关该xrandr
实用程序的研究。不幸的是,当尝试使用它时,我无法将其配置为所需的分辨率。首先,它不会报告输出名称(应该是DVI-0
),default
而是说。没有它,我将无法使用该--fb
选项。
EDID实用程序似乎可以很好地识别监视器。这是来自的输出get-edid
:
# EDID version 1 revision 3
Section "Monitor"
# Block type: 2:0 3:ff
# Block type: 2:0 3:fc
Identifier "DELL U2410"
VendorName "DEL"
ModelName "DELL U2410"
# Block type: 2:0 3:ff
# Block type: 2:0 3:fc
# Block type: 2:0 3:fd
HorizSync 30-81
VertRefresh 56-76
# Max dot clock (video bandwidth) 170 MHz
# DPMS capabilities: Active off:yes Suspend:yes Standby:yes
Mode "1920x1200" # vfreq 59.950Hz, hfreq 74.038kHz
DotClock 154.000000
HTimings 1920 1968 2000 2080
VTimings 1200 1203 1209 1235
Flags "-HSync" "+VSync"
EndMode
# Block type: 2:0 3:ff
# Block type: 2:0 3:fc
# Block type: 2:0 3:fd
EndSection
但是xrandr -q
命令返回:
Screen 0: minimum 640 x 400, current 1600 x 1200, maximum 1600 x 1200
default connected 1600x1200+0+0 0mm x 0mm
1600x1200 0.0*
1280x1024 0.0
1152x864 0.0
1024x768 0.0
800x600 0.0
640x480 0.0
720x400 0.0
当我尝试设置分辨率时,我得到:
$ xrandr --fb 1920x1200
xrandr: screen cannot be larger than 1600x1200 (desired size 1920x1200)
$ xrandr --output DVI-0 --auto
warning: output DVI-0 not found; ignoring
如何将屏幕分辨率设置为1920x1200?为什么不xrandr
识别DVI-0
输出?
请注意,运行Ubuntu 10.04或更高版本的同一台计算机可以正确检测到正确的分辨率。由于某些旧版硬件兼容性问题,我无法在这台计算机上进行升级。
另外,我在“硬件驱动程序”对话框中看不到任何可选的屏幕驱动程序。
----
更新:
在回答这个问题之后,我有所进步。现在所需的模式已在xrandr -q
列表中列出,但是我无法切换到该模式。使用Monitors小程序(现在显示新模式),我得到以下响应:
The selected configuration for displays could not be applied. Could not set the configuration to CRTC 262
。
从命令行看起来像这样:
$ cvt 1920 1200 60
# 1920x1200 59.88 Hz (CVT 2.30MA) hsync: 74.56 kHz; pclk: 193.25 MHz
Modeline "1920x1200_60.00" 193.25 1920 2056 2256 2592 1200 1203 1209 1245 -hsync +vsync
$ xrandr --newmode "1920x1200_60.00" 193.25 1920 2056 2256 2592 1200 1203 1209 1245 -hsync +vsync
$ xrandr -q
Screen 0: minimum 640 x 400, current 1600 x 1200, maximum 1600 x 1200
default connected 1600x1200+0+0 0mm x 0mm
1600x1200 0.0*
1280x1024 0.0
1152x864 0.0
1024x768 0.0
800x600 0.0
640x480 0.0
720x400 0.0
1920x1200_60.00 (0x120) 193.0MHz
h: width 1920 start 2056 end 2256 total 2592 skew 0 clock 74.5KHz
v: height 1200 start 1203 end 1209 total 1245 clock 59.8Hz
$ xrandr --addmode default 1920x1200_60.00
$ xrandr -q
Screen 0: minimum 640 x 400, current 1600 x 1200, maximum 1600 x 1200
default connected 1600x1200+0+0 0mm x 0mm
1600x1200 0.0*
1280x1024 0.0
1152x864 0.0
1024x768 0.0
800x600 0.0
640x480 0.0
720x400 0.0
1920x1200_60.00 59.8
$ xrandr --output default --mode 1920x1200_60.00
xrandr: Configure crtc 0 failed
另一条信息(如果有帮助的话):
$ sudo lshw -c video
*-display UNCLAIMED
description: VGA compatible controller
product: ATI Technologies Inc
vendor: ATI Technologies Inc
physical id: 1
bus info: pci@0000:00:01.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: pm pciexpress msi bus_master cap_list
configuration: latency=0
resources: memory:c0000000-cfffffff(prefetchable) ioport:f000(size=256) memory:feb00000-feb3ffff
----
更新2:这是更新的lshw
清单:
$ sudo lshw -numeric -c video
*-display UNCLAIMED
description: VGA compatible controller
product: ATI Technologies Inc [1002:9802]
vendor: ATI Technologies Inc [1002]
physical id: 1
bus info: pci@0000:00:01.0
version: 00
width: 32 bits
clock: 33MHz
capabilities: pm pciexpress msi bus_master cap_list
configuration: latency=0
resources: memory:c0000000-cfffffff(prefetchable) ioport:f000(size=256) memory:feb00000-feb3ffff