How does Centos 7 solve EDID problem of Centos 6.8?

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r.cristian.ramirez
Posts: 2
Joined: 2017/03/13 11:52:44

How does Centos 7 solve EDID problem of Centos 6.8?

Post by r.cristian.ramirez » 2017/03/13 12:24:41

Hi,

When I install 6.8, screen resolutions aren't calculated correctly. However, Centos 7 works very well on the same hardware.

It can be seen from the attached Xorg logs that 6.8 can't get EDID information.

I see that 6.8 uses HAL while 7 uses udev. Is this may be the reson of the resoultion problem?

Note: Centos 6.8 fresh installation's boot parameter was contain "nomodeset". If I boot with this option, resolutions are correct but screen was flickering while moving windows. I removed nomodeset before taking below log.

Code: Select all

[    11.486] 
X.Org X Server 1.17.4
Release Date: 2015-10-28
[    11.486] X Protocol Version 11, Revision 0
[    11.486] Build Operating System: worker1 2.6.32-573.18.1.el6.x86_64 
[    11.486] Current Operating System: Linux localhost.localdomain 3.10.104-1.el6.elrepo.x86_64 #1 SMP Fri Oct 21 10:27:14 EDT 2016 x86_64
[    11.486] Kernel command line: ro root=/dev/mapper/VolGroup-lv_root rd_NO_LUKS LANG=en_US.UTF-8 rd_NO_MD rd_LVM_LV=VolGroup/lv_swap SYSFONT=latarcyrheb-sun16 crashkernel=auto rd_LVM_LV=VolGroup/lv_root rd_NO_DM rhgb quiet
[    11.486] Build Date: 11 May 2016  08:30:28PM
[    11.486] Build ID: xorg-x11-server 1.17.4-9.el6.centos 
[    11.486] Current version of pixman: 0.32.8
[    11.486] 	Before reporting problems, check http://wiki.centos.org/Documentation
	to make sure that you have the latest version.
[    11.486] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[    11.487] (==) Log file: "/var/log/Xorg.0.log", Time: Mon Mar 13 12:44:55 2017
[    11.488] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[    11.488] (==) No Layout section.  Using the first Screen section.
[    11.488] (==) No screen section available. Using defaults.
[    11.488] (**) |-->Screen "Default Screen Section" (0)
[    11.488] (**) |   |-->Monitor "<default monitor>"
[    11.488] (==) No monitor specified for screen "Default Screen Section".
	Using a default monitor configuration.
[    11.488] (==) Automatically adding devices
[    11.488] (==) Automatically enabling devices
[    11.488] (==) Not automatically adding GPU devices
[    11.488] (==) Max clients allowed: 256, resource mask: 0x1fffff
[    11.488] (==) FontPath set to:
	catalogue:/etc/X11/fontpath.d,
	built-ins
[    11.488] (==) ModulePath set to "/usr/lib64/xorg/modules"
[    11.488] (II) The server relies on HAL to provide the list of input devices.
	If no devices become available, reconfigure HAL or disable AutoAddDevices.
[    11.489] (II) Loader magic: 0x7f6303625020
[    11.489] (II) Module ABI versions:
[    11.489] 	X.Org ANSI C Emulation: 0.4
[    11.489] 	X.Org Video Driver: 19.0
[    11.489] 	X.Org XInput driver : 21.0
[    11.489] 	X.Org Server Extension : 9.0
[    11.500] (--) PCI:*(0:12:0:0) 1a03:2000:15d9:0907 rev 48, Mem @ 0xdb000000/16777216, 0xdc000000/131072, I/O @ 0x0000d000/128, BIOS @ 0x????????/131072
[    11.500] (II) LoadModule: "glx"
[    11.502] (II) Loading /usr/lib64/xorg/modules/extensions/libglx.so
[    11.512] (II) Module glx: vendor="X.Org Foundation"
[    11.512] 	compiled for 1.17.4, module version = 1.0.0
[    11.512] 	ABI class: X.Org Server Extension, version 9.0
[    11.512] (==) AIGLX enabled
[    11.512] (==) Matched ast as autoconfigured driver 0
[    11.512] (==) Matched modesetting as autoconfigured driver 1
[    11.512] (==) Matched fbdev as autoconfigured driver 2
[    11.512] (==) Matched vesa as autoconfigured driver 3
[    11.512] (==) Assigned the driver to the xf86ConfigLayout
[    11.512] (II) LoadModule: "ast"
[    11.512] (II) Loading /usr/lib64/xorg/modules/drivers/ast_drv.so
[    11.512] (II) Module ast: vendor="X.Org Foundation"
[    11.512] 	compiled for 1.17.4, module version = 1.1.5
[    11.512] 	Module class: X.Org Video Driver
[    11.512] 	ABI class: X.Org Video Driver, version 19.0
[    11.512] (II) LoadModule: "modesetting"
[    11.513] (II) Loading /usr/lib64/xorg/modules/drivers/modesetting_drv.so
[    11.513] (II) Module modesetting: vendor="X.Org Foundation"
[    11.513] 	compiled for 1.17.4, module version = 1.17.4
[    11.513] 	Module class: X.Org Video Driver
[    11.513] 	ABI class: X.Org Video Driver, version 19.0
[    11.513] (II) LoadModule: "fbdev"
[    11.513] (II) Loading /usr/lib64/xorg/modules/drivers/fbdev_drv.so
[    11.514] (II) Module fbdev: vendor="X.Org Foundation"
[    11.514] 	compiled for 1.17.4, module version = 0.4.3
[    11.514] 	Module class: X.Org Video Driver
[    11.514] 	ABI class: X.Org Video Driver, version 19.0
[    11.514] (II) LoadModule: "vesa"
[    11.514] (II) Loading /usr/lib64/xorg/modules/drivers/vesa_drv.so
[    11.514] (II) Module vesa: vendor="X.Org Foundation"
[    11.514] 	compiled for 1.17.4, module version = 2.3.4
[    11.514] 	Module class: X.Org Video Driver
[    11.514] 	ABI class: X.Org Video Driver, version 19.0
[    11.514] (II) AST: Driver for ASPEED Graphics Chipsets: ASPEED Graphics Family,
	ASPEED Graphics Family, ASPEED AST1180 Graphics
[    11.514] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[    11.514] (II) FBDEV: driver for framebuffer: fbdev
[    11.514] (II) VESA: driver for VESA chipsets: vesa
[    11.514] (++) using VT number 1

[    11.516] (WW) Falling back to old probe method for ast
[    11.516] (--) Assigning device section with no busID to primary device
[    11.516] (--) Chipset ASPEED Graphics Family found
[    11.516] (EE) ast: The PCI device 0x2000 at 12@00:00:0 has a kernel module claiming it.
[    11.516] (EE) ast: This driver cannot operate until it has been unloaded.
[    11.516] (**) modeset(0): claimed PCI slot 12@0:0:0
[    11.516] (II) modeset(0): using default device
[    11.516] (WW) Falling back to old probe method for fbdev
[    11.516] (II) Loading sub module "fbdevhw"
[    11.516] (II) LoadModule: "fbdevhw"
[    11.517] (II) Loading /usr/lib64/xorg/modules/libfbdevhw.so
[    11.517] (II) Module fbdevhw: vendor="X.Org Foundation"
[    11.517] 	compiled for 1.17.4, module version = 0.0.2
[    11.517] 	ABI class: X.Org Video Driver, version 19.0
[    11.517] (WW) Falling back to old probe method for vesa
[    11.517] (II) modeset(0): Creating default Display subsection in Screen section
	"Default Screen Section" for depth/fbbpp 24/32
[    11.517] (==) modeset(0): Depth 24, (==) framebuffer bpp 32
[    11.517] (==) modeset(0): RGB weight 888
[    11.517] (==) modeset(0): Default visual is TrueColor
[    11.517] (II) Loading sub module "glamoregl"
[    11.517] (II) LoadModule: "glamoregl"
[    11.517] (II) Loading /usr/lib64/xorg/modules/libglamoregl.so
[    11.524] (II) Module glamoregl: vendor="X.Org Foundation"
[    11.524] 	compiled for 1.17.4, module version = 1.0.0
[    11.524] 	ABI class: X.Org ANSI C Emulation, version 0.4
[    11.524] (II) glamor: OpenGL accelerated X.org driver based.
[    11.602] (II) glamor: EGL version 1.4 (DRI2):
[    11.602] EGL_MESA_drm_image required.
[    11.602] (EE) modeset(0): glamor initialization failed
[    11.602] (II) modeset(0): ShadowFB: preferred YES, enabled YES
[    11.706] (II) modeset(0): Output VGA-0 has no monitor section
[    11.810] (II) modeset(0): EDID for output VGA-0
[    11.810] (II) modeset(0): Printing probed modes for output VGA-0
[    11.810] (II) modeset(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
[    11.810] (II) modeset(0): Modeline "800x600"x60.3   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
[    11.810] (II) modeset(0): Modeline "800x600"x56.2   36.00  800 824 896 1024  600 601 603 625 +hsync +vsync (35.2 kHz e)
[    11.810] (II) modeset(0): Modeline "848x480"x60.0   33.75  848 864 976 1088  480 486 494 517 +hsync +vsync (31.0 kHz e)
[    11.810] (II) modeset(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 489 492 525 -hsync -vsync (31.5 kHz e)
[    11.810] (II) modeset(0): Output VGA-0 connected
[    11.810] (II) modeset(0): Using exact sizes for initial modes
[    11.810] (II) modeset(0): Output VGA-0 using initial mode 1024x768 +0+0
[    11.810] (II) modeset(0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated.
[    11.810] (==) modeset(0): DPI set to (96, 96)
[    11.810] (II) Loading sub module "fb"
[    11.810] (II) LoadModule: "fb"
[    11.810] (II) Loading /usr/lib64/xorg/modules/libfb.so
[    11.811] (II) Module fb: vendor="X.Org Foundation"
[    11.811] 	compiled for 1.17.4, module version = 1.0.0
[    11.811] 	ABI class: X.Org ANSI C Emulation, version 0.4
[    11.811] (II) Loading sub module "shadow"
[    11.811] (II) LoadModule: "shadow"
[    11.811] (II) Loading /usr/lib64/xorg/modules/libshadow.so
[    11.812] (II) Module shadow: vendor="X.Org Foundation"
[    11.812] 	compiled for 1.17.4, module version = 1.1.0
[    11.812] 	ABI class: X.Org ANSI C Emulation, version 0.4
[    11.812] (II) UnloadModule: "fbdev"
[    11.812] (II) Unloading fbdev
[    11.812] (II) UnloadSubModule: "fbdevhw"
[    11.812] (II) Unloading fbdevhw
[    11.812] (II) UnloadModule: "vesa"
[    11.812] (II) Unloading vesa
[    11.812] (==) Depth 24 pixmap format is 32 bpp
[    11.813] (==) modeset(0): Backing store enabled
[    11.813] (==) modeset(0): Silken mouse enabled
[    11.814] (II) modeset(0): RandR 1.2 enabled, ignore the following RandR disabled message.
[    11.814] (==) modeset(0): DPMS enabled

Code: Select all

[   154.927] 
X.Org X Server 1.17.2
Release Date: 2015-06-16
[   154.927] X Protocol Version 11, Revision 0
[   154.927] Build Operating System:  2.6.32-573.18.1.el6.x86_64 
[   154.927] Current Operating System: Linux localhost.localdomain 3.10.0-514.el7.x86_64 #1 SMP Tue Nov 22 16:42:41 UTC 2016 x86_64
[   154.927] Kernel command line: BOOT_IMAGE=/isolinux/vmlinuz0 root=live:LABEL=CentOS-7-x86_64-LiveGNOME-1611 ro rd.live.image quiet rhgb
[   154.927] Build Date: 06 November 2016  12:43:39AM
[   154.927] Build ID: xorg-x11-server 1.17.2-22.el7 
[   154.927] Current version of pixman: 0.34.0
[   154.927] 	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
[   154.927] Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
[   154.928] (==) Log file: "/var/log/Xorg.0.log", Time: Thu Mar  9 12:16:10 2017
[   155.243] (==) Using config directory: "/etc/X11/xorg.conf.d"
[   155.243] (==) Using system config directory "/usr/share/X11/xorg.conf.d"
[   155.570] (==) No Layout section.  Using the first Screen section.
[   155.570] (==) No screen section available. Using defaults.
[   155.570] (**) |-->Screen "Default Screen Section" (0)
[   155.570] (**) |   |-->Monitor "<default monitor>"
[   155.598] (==) No monitor specified for screen "Default Screen Section".
	Using a default monitor configuration.
[   155.598] (==) Automatically adding devices
[   155.598] (==) Automatically enabling devices
[   155.598] (==) Automatically adding GPU devices
[   155.598] (==) Max clients allowed: 256, resource mask: 0x1fffff
[   155.598] (==) FontPath set to:
	catalogue:/etc/X11/fontpath.d,
	built-ins
[   155.599] (==) ModulePath set to "/usr/lib64/xorg/modules"
[   155.599] (II) The server relies on udev to provide the list of input devices.
	If no devices become available, reconfigure udev or disable AutoAddDevices.
[   155.599] (II) Loader magic: 0x7f7282b90020
[   155.599] (II) Module ABI versions:
[   155.599] 	X.Org ANSI C Emulation: 0.4
[   155.599] 	X.Org Video Driver: 19.0
[   155.599] 	X.Org XInput driver : 21.0
[   155.599] 	X.Org Server Extension : 9.0
[   155.600] (II) xfree86: Adding drm device (/dev/dri/card0)
[   155.602] (--) PCI:*(0:13:0:0) 1a03:2000:15d9:0907 rev 48, Mem @ 0xdb000000/16777216, 0xdc000000/131072, I/O @ 0x0000d000/128, BIOS @ 0x????????/131072
[   155.602] (II) LoadModule: "glx"
[   155.603] (II) Loading /usr/lib64/xorg/modules/extensions/libglx.so
[   156.087] (II) Module glx: vendor="X.Org Foundation"
[   156.087] 	compiled for 1.17.2, module version = 1.0.0
[   156.087] 	ABI class: X.Org Server Extension, version 9.0
[   156.087] (==) AIGLX enabled
[   156.087] (==) Matched modesetting as autoconfigured driver 0
[   156.087] (==) Matched fbdev as autoconfigured driver 1
[   156.087] (==) Matched vesa as autoconfigured driver 2
[   156.087] (==) Assigned the driver to the xf86ConfigLayout
[   156.087] (II) LoadModule: "modesetting"
[   156.088] (II) Loading /usr/lib64/xorg/modules/drivers/modesetting_drv.so
[   156.088] (II) Module modesetting: vendor="X.Org Foundation"
[   156.088] 	compiled for 1.17.2, module version = 1.17.2
[   156.088] 	Module class: X.Org Video Driver
[   156.088] 	ABI class: X.Org Video Driver, version 19.0
[   156.088] (II) LoadModule: "fbdev"
[   156.088] (II) Loading /usr/lib64/xorg/modules/drivers/fbdev_drv.so
[   156.523] (II) Module fbdev: vendor="X.Org Foundation"
[   156.523] 	compiled for 1.17.2, module version = 0.4.3
[   156.523] 	Module class: X.Org Video Driver
[   156.523] 	ABI class: X.Org Video Driver, version 19.0
[   156.523] (II) LoadModule: "vesa"
[   156.523] (II) Loading /usr/lib64/xorg/modules/drivers/vesa_drv.so
[   156.532] (II) Module vesa: vendor="X.Org Foundation"
[   156.532] 	compiled for 1.17.2, module version = 2.3.2
[   156.532] 	Module class: X.Org Video Driver
[   156.532] 	ABI class: X.Org Video Driver, version 19.0
[   156.532] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[   156.532] (II) FBDEV: driver for framebuffer: fbdev
[   156.532] (II) VESA: driver for VESA chipsets: vesa
[   156.532] (++) using VT number 1

[   156.533] (II) modeset(0): using drv /dev/dri/card0
[   156.533] (WW) Falling back to old probe method for fbdev
[   156.533] (II) Loading sub module "fbdevhw"
[   156.533] (II) LoadModule: "fbdevhw"
[   156.533] (II) Loading /usr/lib64/xorg/modules/libfbdevhw.so
[   156.537] (II) Module fbdevhw: vendor="X.Org Foundation"
[   156.537] 	compiled for 1.17.2, module version = 0.0.2
[   156.537] 	ABI class: X.Org Video Driver, version 19.0
[   156.538] (WW) Falling back to old probe method for vesa
[   156.538] (II) modeset(0): Creating default Display subsection in Screen section
	"Default Screen Section" for depth/fbbpp 24/32
[   156.538] (==) modeset(0): Depth 24, (--) framebuffer bpp 32
[   156.538] (==) modeset(0): RGB weight 888
[   156.538] (==) modeset(0): Default visual is TrueColor
[   156.538] (II) Loading sub module "glamoregl"
[   156.538] (II) LoadModule: "glamoregl"
[   156.538] (II) Loading /usr/lib64/xorg/modules/libglamoregl.so
[   156.851] (II) Module glamoregl: vendor="X.Org Foundation"
[   156.851] 	compiled for 1.17.2, module version = 1.0.0
[   156.851] 	ABI class: X.Org ANSI C Emulation, version 0.4
[   156.851] (II) glamor: OpenGL accelerated X.org driver based.
[   163.613] (II) glamor: EGL version 1.4 (DRI2):
[   163.613] EGL_MESA_drm_image required.
[   163.613] (EE) modeset(0): glamor initialization failed
[   163.613] (II) modeset(0): ShadowFB: preferred YES, enabled YES
[   163.613] (II) modeset(0): Double-buffered shadow updates: on(II) modeset(0): Output VGA-0 has no monitor section
[   164.044] (II) modeset(0): EDID for output VGA-0
[   164.044] (II) modeset(0): Manufacturer: DVL  Model: 0  Serial#: 0
[   164.044] (II) modeset(0): Year: 2006  Week: 21
[   164.044] (II) modeset(0): EDID Version: 1.3
[   164.044] (II) modeset(0): Analog Display Input,  Input Voltage Level: 0.700/0.700 V
[   164.044] (II) modeset(0): Signal levels configurable
[   164.044] (II) modeset(0): Sync:  Separate  Composite  SyncOnGreen
[   164.044] (II) modeset(0): Max Image Size [cm]: horiz.: 34  vert.: 27
[   164.044] (II) modeset(0): Gamma: 2.20
[   164.044] (II) modeset(0): DPMS capabilities: StandBy Suspend Off; RGB/Color Display
[   164.044] (II) modeset(0): Default color space is primary color space
[   164.044] (II) modeset(0): First detailed timing is preferred mode
[   164.044] (II) modeset(0): redX: 0.641 redY: 0.342   greenX: 0.292 greenY: 0.611
[   164.044] (II) modeset(0): blueX: 0.147 blueY: 0.068   whiteX: 0.313 whiteY: 0.328
[   164.044] (II) modeset(0): Supported established timings:
[   164.044] (II) modeset(0): 720x400@70Hz
[   164.044] (II) modeset(0): 720x400@88Hz
[   164.044] (II) modeset(0): 640x480@60Hz
[   164.044] (II) modeset(0): 640x480@67Hz
[   164.044] (II) modeset(0): 640x480@72Hz
[   164.044] (II) modeset(0): 640x480@75Hz
[   164.044] (II) modeset(0): 800x600@56Hz
[   164.044] (II) modeset(0): 800x600@60Hz
[   164.045] (II) modeset(0): 800x600@72Hz
[   164.045] (II) modeset(0): 800x600@75Hz
[   164.045] (II) modeset(0): 832x624@75Hz
[   164.045] (II) modeset(0): 1024x768@87Hz (interlaced)
[   164.045] (II) modeset(0): 1024x768@60Hz
[   164.045] (II) modeset(0): 1024x768@70Hz
[   164.045] (II) modeset(0): 1024x768@75Hz
[   164.045] (II) modeset(0): 1280x1024@75Hz
[   164.045] (II) modeset(0): 1152x864@75Hz
[   164.045] (II) modeset(0): Manufacturer's mask: 0
[   164.045] (II) modeset(0): Supported standard timings:
[   164.045] (II) modeset(0): #0: hsize: 1152  vsize 864  refresh: 60  vid: 16497
[   164.045] (II) modeset(0): #1: hsize: 1280  vsize 1024  refresh: 60  vid: 32897
[   164.045] (II) modeset(0): #2: hsize: 1280  vsize 1024  refresh: 75  vid: 36737
[   164.045] (II) modeset(0): #3: hsize: 1600  vsize 1200  refresh: 60  vid: 16553
[   164.045] (II) modeset(0): Supported detailed timing:
[   164.045] (II) modeset(0): clock: 162.0 MHz   Image Size:  345 x 259 mm
[   164.045] (II) modeset(0): h_active: 1600  h_sync: 1664  h_sync_end 1856 h_blank_end 2160 h_border: 0
[   164.045] (II) modeset(0): v_active: 1200  v_sync: 1201  v_sync_end 1204 v_blanking: 1250 v_border: 0
[   164.045] (II) modeset(0): Ranges: V min: 56 V max: 75 Hz, H min: 12 H max: 120 kHz, PixClock max 165 MHz
[   164.045] (II) modeset(0): Serial No: 000000000000
[   164.045] (II) modeset(0): Monitor name: SP1600-A
[   164.045] (II) modeset(0): EDID (in hex):
[   164.045] (II) modeset(0): 	00ffffffffffff0012cc000000000000
[   164.045] (II) modeset(0): 	151001037e221b78ee2ee4a4574a9c25
[   164.045] (II) modeset(0): 	115054ffff8071408180818fa9400101
[   164.045] (II) modeset(0): 	010101010101483f403062b0324040c0
[   164.045] (II) modeset(0): 	1300590311000018000000fd00384b0c
[   164.045] (II) modeset(0): 	7810000a202020202020000000ff0030
[   164.045] (II) modeset(0): 	30303030303030303030300a000000fc
[   164.045] (II) modeset(0): 	005350313630302d410a0a0a0a0a00a0
[   164.045] (II) modeset(0): Printing probed modes for output VGA-0
[   164.045] (II) modeset(0): Modeline "1600x1200"x60.0  162.00  1600 1664 1856 2160  1200 1201 1204 1250 -hsync -vsync (75.0 kHz eP)
[   164.045] (II) modeset(0): Modeline "1280x1024"x75.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
[   164.045] (II) modeset(0): Modeline "1280x1024"x60.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz e)
[   164.045] (II) modeset(0): Modeline "1024x768"x75.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
[   164.045] (II) modeset(0): Modeline "1024x768"x70.1   75.00  1024 1048 1184 1328  768 771 777 806 -hsync -vsync (56.5 kHz e)
[   164.045] (II) modeset(0): Modeline "1024x768"x60.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
[   164.045] (II) modeset(0): Modeline "800x600"x72.2   50.00  800 856 976 1040  600 637 643 666 +hsync +vsync (48.1 kHz e)
[   164.045] (II) modeset(0): Modeline "800x600"x75.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
[   164.045] (II) modeset(0): Modeline "800x600"x60.3   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
[   164.045] (II) modeset(0): Modeline "800x600"x56.2   36.00  800 824 896 1024  600 601 603 625 +hsync +vsync (35.2 kHz e)
[   164.045] (II) modeset(0): Modeline "640x480"x75.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
[   164.045] (II) modeset(0): Modeline "640x480"x72.8   31.50  640 664 704 832  480 489 492 520 -hsync -vsync (37.9 kHz e)
[   164.045] (II) modeset(0): Modeline "640x480"x66.7   30.24  640 704 768 864  480 483 486 525 -hsync -vsync (35.0 kHz e)
[   164.045] (II) modeset(0): Modeline "640x480"x59.9   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
[   164.045] (II) modeset(0): Output VGA-0 connected
[   164.045] (II) modeset(0): Using exact sizes for initial modes
[   164.045] (II) modeset(0): Output VGA-0 using initial mode 1600x1200 +0+0
[   164.045] (II) modeset(0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated.
[   164.045] (==) modeset(0): DPI set to (96, 96)
[   164.045] (II) Loading sub module "fb"
[   164.045] (II) LoadModule: "fb"
[   164.045] (II) Loading /usr/lib64/xorg/modules/libfb.so
[   164.055] (II) Module fb: vendor="X.Org Foundation"
[   164.055] 	compiled for 1.17.2, module version = 1.0.0
[   164.055] 	ABI class: X.Org ANSI C Emulation, version 0.4
[   164.055] (II) Loading sub module "shadow"
[   164.055] (II) LoadModule: "shadow"
[   164.056] (II) Loading /usr/lib64/xorg/modules/libshadow.so
[   164.060] (II) Module shadow: vendor="X.Org Foundation"
[   164.060] 	compiled for 1.17.2, module version = 1.1.0
[   164.060] 	ABI class: X.Org ANSI C Emulation, version 0.4
[   164.060] (II) UnloadModule: "fbdev"
[   164.060] (II) Unloading fbdev
[   164.060] (II) UnloadSubModule: "fbdevhw"
[   164.060] (II) Unloading fbdevhw
[   164.060] (II) UnloadModule: "vesa"
[   164.060] (II) Unloading vesa
[   164.060] (==) Depth 24 pixmap format is 32 bpp
[   164.086] (==) modeset(0): Backing store enabled
[   164.086] (==) modeset(0): Silken mouse enabled
[   164.086] (II) modeset(0): RandR 1.2 enabled, ignore the following RandR disabled message.
[   164.087] (==) modeset(0): DPMS enabled

r.cristian.ramirez
Posts: 2
Joined: 2017/03/13 11:52:44

Re: How does Centos 7 solve EDID problem of Centos 6.8?

Post by r.cristian.ramirez » 2017/03/25 18:22:40

I couldn't find source of the problem but giving edid data as discussed here[1] worked for me.

[1] https://wiki.archlinux.org/index.php/ke ... de_setting

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