显示问题 - 桌面大于电视显示屏

显示问题 - 桌面大于电视显示屏

我刚刚将我的 HTPC 从 Windows 7 迁移到 Ubuntu 16.04。安装顺利,但是,在 1280x720 或 1920x1080 的分辨率下,实际桌面比电视屏幕更宽(主要在左侧和右侧,但顶部和底部也有点宽)。这意味着我只能看到左侧工具栏的一小部分(对于启动应用程序很有用!)。之前在 Win7 上,桌面在 1280x720 和 1920x1080 的屏幕上完美固定。

一个有趣的事实是,当我进入 Ubuntu 的控制面板 -> 显示设置来更改分辨率和显示设置时,它似乎将我的显示器(通过 HDMI 连接的电视)检测为三星电气公司的 50 英寸。我碰巧有一台三星 42 英寸等离子电视。也许 EDID 被错误读取了?我一直在尝试使用 xrandr 和 cdv 测试新的模式行,但似乎没有任何效果。有人能帮忙正确配置它吗?

一些背景信息:

系统规格:

  • 显示器:三星等离子显示器,HP-R4272
  • 连接:HDMI MB:华硕 M4A785-M,集成 ATI Radeon HD4200
  • Ubuntu:16.04 显示
  • 驱动程序:radeon

来自编辑阅读:

Section "Monitor"
Identifier "SAMSUNG PDP"
ModelName "SAMSUNG PDP"
VendorName "SAM"
# Monitor Manufactured week 50 of 2004
# EDID version 1.3
# Digital Display
DisplaySize 1110 620
Gamma 2.20
Option "DPMS" "false"
Horizsync 30-48
VertRefresh 55-65
# Maximum pixel clock is 80MHz

#Extension block found. Parsing...
Modeline "Mode 5" 27.00 720 736 798 858 480 489 495 525 -hsync -vsync
Modeline "Mode 0" 74.25 1280 1390 1430 1650 720 725 730 750 +hsync +vsync
Modeline "Mode 1" 74.25 1920 2008 2052 2200 540 542 547 562 +hsync +vsync interlace
Modeline "Mode 2" 74.250 1280 1390 1420 1650 720 725 730 750 +hsync +vsync
Modeline "Mode 3" 74.250 1920 2008 2052 2200 1080 1082 1087 1125 +hsync +vsync interlace
Modeline "Mode 4" 27.027 720 736 798 858 480 489 495 525 -hsync -vsync
Option "PreferredMode" "Mode 5"

来自 xrandr —verbose:

Screen 0: minimum 320 x 200, current 1280 x 720, maximum 8192 x 8192
VGA-0 disconnected (normal left inverted right x axis y axis)
Identifier: 0x51
Timestamp:  19274
Subpixel:   no subpixels
Clones:
CRTCs:      0 1
Transform:  1.000000 0.000000 0.000000
            0.000000 1.000000 0.000000
            0.000000 0.000000 1.000000
          filter:
scaling mode: None
supported: None, Full, Center, Full aspect
load detection: 1
range: (0, 1)
HDMI-0 connected primary 1280x720+0+0 (0x54) normal (normal left inverted right x axis y axis) 1102mm x 620mm
Identifier: 0x52
Timestamp:  19274
Subpixel:   horizontal rgb
Gamma:      1.0:1.0:1.0
Brightness: 1.0
Clones:
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:
EDID:
00ffffffffffff004c2d8a0100000000
320e0103806f3e780aee91a3544c9926
0f505420000001010101010101010101
010101010101011d007251d01e206e28
55004e6c4200001e011d8018711c1620
582c25004e6c4200009e000000fd0037
411e3008000a202020202020000000fc
0053414d53554e47205044500a20011d
02031671438405032309070783010000
65030c0010008c0ad08a20e02d10103e
96004e6c420000180000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
0000000000000000000000000000003e
audio: auto
supported: off, on, auto
scaling mode: None
supported: None, Full, Center, Full aspect
dither: off
supported: off, on
underscan vborder: 0
range: (0, 128)
underscan hborder: 0
range: (0, 128)
underscan: off
supported: off, on, auto
coherent: 1
range: (0, 1)
  1280x720 (0x54) 74.250MHz +HSync +VSync *current +preferred
        h: width  1280 start 1390 end 1430 total 1650 skew    0 clock  45.00KHz
        v: height  720 start  725 end  730 total  750           clock  60.00Hz
  1920x1080i (0x55) 74.250MHz +HSync +VSync Interlace
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  33.75KHz
        v: height 1080 start 1084 end 1094 total 1125           clock  60.00Hz
  1920x1080i (0x56) 74.176MHz +HSync +VSync Interlace
        h: width  1920 start 2008 end 2052 total 2200 skew    0 clock  33.72KHz
        v: height 1080 start 1084 end 1094 total 1125           clock  59.94Hz
  1280x720 (0x57) 74.176MHz +HSync +VSync
        h: width  1280 start 1390 end 1430 total 1650 skew    0 clock  44.96KHz
        v: height  720 start  725 end  730 total  750           clock  59.94Hz
  720x480 (0x58) 27.027MHz -HSync -VSync
        h: width   720 start  736 end  798 total  858 skew    0 clock  31.50KHz
        v: height  480 start  489 end  495 total  525           clock  60.00Hz
  720x480 (0x59) 27.000MHz -HSync -VSync
        h: width   720 start  736 end  798 total  858 skew    0 clock  31.47KHz
        v: height  480 start  489 end  495 total  525           clock  59.94Hz
  640x480 (0x5a) 25.200MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock  31.50KHz
        v: height  480 start  490 end  492 total  525           clock  60.00Hz
  640x480 (0x5b) 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

来自 CTV:

# 1280x768 59.87 Hz (CVT) hsync: 47.78 kHz; pclk: 79.50 MHz
Modeline "1280x768_60.00"   79.50  1280 1344 1472 1664  768 771 781 798 -hsync +vsync

来自 gtf:

# 1280x768 @ 60.00 Hz (GTF) hsync: 47.70 kHz; pclk: 80.14 MHz
Modeline "1280x768_60.00"  80.14  1280 1344 1480 1680  768 769 772 795  -HSync +Vsync

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