[Intel-gfx] 3.10.0+ laptop resolution problem

[Hans de Bruin]

somewhere before commit 496322b (yesterday's kernel) resolution 
switching on my laptop broke. The screen switches to the right 
resolution but the screen is not horizontally centered. The screen is 
aligned left and the last vertical line is repeated until the right side 
of the screen. Normally there would be black bars on left and right side.

-- 
Hans

lspci:
...
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 
943/940GML Express Integrated Graphics Controller (rev 03)
...

-------------- next part --------------
Screen 0: minimum 320 x 200, current 800 x 600, maximum 4096 x 4096
LVDS1 connected 800x600+0+0 (0x47) normal (normal left inverted right x axis y axis) 261mm x 163mm
	Identifier: 0x41
	Timestamp:  3327596
	Subpixel:   horizontal rgb
	Gamma:      1.0:1.0:1.0
	Brightness: 1.0
	Clones:    
	CRTC:       1
	CRTCs:      1
	Transform:  1.000000 0.000000 0.000000
	            0.000000 1.000000 0.000000
	            0.000000 0.000000 1.000000
	           filter: 
	EDID:
		00ffffffffffff004ca3415400000000
		00110103801a10780a87f594574f8c27
		27505400000001010101010101010101
		010101010101121b008b502010303020
		360005a3100000190000000f00000000
		000000000032d2023200000000fe0050
		593637350331323141540a20000000fe
		00263741496c88b0ff01010a20200084
	BACKLIGHT: 0 (0x00000000)	range:  (0,312)
	Backlight: 0 (0x00000000)	range:  (0,312)
	scaling mode:	Full aspect
		supported: None         Full         Center       Full aspect 
  1280x800 (0x45)   69.3MHz -HSync -VSync +preferred
        h: width  1280 start 1328 end 1360 total 1419 skew    0 clock   48.8KHz
        v: height  800 start  803 end  809 total  816           clock   59.8Hz
  1024x768 (0x46)   65.0MHz -HSync -VSync
        h: width  1024 start 1048 end 1184 total 1344 skew    0 clock   48.4KHz
        v: height  768 start  771 end  777 total  806           clock   60.0Hz
  800x600 (0x47)   40.0MHz +HSync +VSync *current
        h: width   800 start  840 end  968 total 1056 skew    0 clock   37.9KHz
        v: height  600 start  601 end  605 total  628           clock   60.3Hz
  800x600 (0x48)   36.0MHz +HSync +VSync
        h: width   800 start  824 end  896 total 1024 skew    0 clock   35.2KHz
        v: height  600 start  601 end  603 total  625           clock   56.2Hz
  640x480 (0x49)   25.2MHz -HSync -VSync
        h: width   640 start  656 end  752 total  800 skew    0 clock   31.5KHz
        v: height  480 start  490 end  492 total  525           clock   59.9Hz
VGA1 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x42
	Timestamp:  3327596
	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: 
DVI1 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x43
	Timestamp:  3327596
	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: 
TV1 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x44
	Timestamp:  3327596
	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: 
	bottom margin: 37 (0x00000025)	range:  (0,100)
	right margin: 46 (0x0000002e)	range:  (0,100)
	top margin: 36 (0x00000024)	range:  (0,100)
	left margin: 54 (0x00000036)	range:  (0,100)
	mode:	NTSC-M
		supported: NTSC-M       NTSC-443     NTSC-J       PAL-M       
		           PAL-N        PAL          480p         576p        
		           720p at 60Hz    720p at 50Hz    1080i at 50Hz   1080i at 60Hz