Bug#689381: X: Login screen fails to appear, though you can still interact with it

[Gregory Plummer]

Dear Paul

>> On most occasions when this bug has arisen I have been able to log in
>> and everything loads fine.
>
> Could you describe what happens? So GDM default background with no
> window, then you enter your credentials and hit enter. Then what. The
> background is loaded and fades in and after some time the GNOME panel
> appears?

Yes, I get the default background with no visible window to enter my
credentials. However I am able to press enter and type in my password
to log in as if the credentials window were still there. After
entering my password and hitting enter everything appears to load
normally just as you say.

>> Here is the output from xrandr you wanted.
>
> […]
>
> Thanks! It does not show anything weird. Could you please clarify how
> you captured this output? After logging in, when everything was fine?

Yes, the xrandr output I included was captured from a terminal after
logging in normally. I have just experienced this bug again and have
included new xrandr output.


Screen 0: minimum 320 x 200, current 1366 x 768, maximum 8192 x 8192
VGA1 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x41
	Timestamp:  81505
	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:
LVDS1 connected 1366x768+0+0 (0x45) normal (normal left inverted right
x axis y axis) 344mm x 194mm
	Identifier: 0x42
	Timestamp:  81505
	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:
		00ffffffffffff0030e4300200000000
		00130103802213780a62259f5d579b25
		19505400000001010101010101010101
		0101010101013e1c56a0500016303020
		350058c2100000190000000000000000
		00000000000000000000000000fe004c
		4720446973706c61790a2020000000fc
		004c503135365748322d544c41410038
	BACKLIGHT: 7 (0x00000007)	range:  (0,7)
	Backlight: 7 (0x00000007)	range:  (0,7)
	scaling mode:	Full
		supported: None         Full         Center       Full aspect
  1366x768 (0x45)   72.3MHz -HSync -VSync *current +preferred
        h: width  1366 start 1414 end 1446 total 1526 skew    0 clock   47.4KHz
        v: height  768 start  771 end  776 total  790           clock   60.0Hz
  1360x768 (0x46)   84.8MHz -HSync +VSync
        h: width  1360 start 1432 end 1568 total 1776 skew    0 clock   47.7KHz
        v: height  768 start  771 end  781 total  798           clock   59.8Hz
  1360x768 (0x47)   72.0MHz +HSync -VSync
        h: width  1360 start 1408 end 1440 total 1520 skew    0 clock   47.4KHz
        v: height  768 start  771 end  781 total  790           clock   60.0Hz
  1024x768 (0x48)   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 (0x49)   40.0MHz +HSync +VSync
        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 (0x4a)   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 (0x4b)   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
DP1 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x43
	Timestamp:  81505
	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:
TV1 disconnected (normal left inverted right x axis y axis)
	Identifier: 0x44
	Timestamp:  81505
	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 at 59.94Hz 480p at 60Hz
		           576p         720p at 60Hz    720p at 59.94Hz 720p at 50Hz
		           1080i at 50Hz   1080i at 60Hz   1080i at 59.94H


> Please make sure to always note the current circumstances when capturing
> something as it is very hard otherwise to comprehend what is going on.
>
> Also please attach the output under system information of `reportbug
> gdm` or `reportbug gdm3`.

My apologies but I do not know what you are referring to?