Bottom of my screen is completely black

mcaceres · 2016-05-18 02:46:02

The bottom part of my laptop screen is completely black after I log in (but not before; I'm using SDDM as my log-in manager with plasma 5.6.4, Qt 5.6.0, Frameworks 5.21, kernel 4.5.4-1 ARCH). About an inch off the bottom of my screen is completely blacked out.

1. The system knows there is an area there. Whenever I maximize a window, it uses that portion of the screen, but I cannot see anything since it's just a black rectangle.

2. My screen also happens to be a touchscreen, and when I touch that area, it takes me to the corresponding area that is not blacked out.

3. When I connect an external monitor (using HDMI), the entire laptop screen becomes usable again and the black part is filled with the rest of the screen.

4. I don't know if this is related, but this coincided with me being unable to adjust the brightness (I could do it before).

Does anyone have an idea how to debug this? Thanks!

Last edited by mcaceres (2016-05-21 14:36:03)

jasonwryan · 2016-05-18 02:59:42

Graphics card? Driver? Xorg log?

mcaceres · 2016-05-18 03:53:50

Graphics card, driver

00:02.0 VGA compatible controller: Intel Corporation Broadwell-U Integrated Graphics (rev 09) (prog-if 00 [VGA controller])
        Subsystem: Dell Device 066e
        Flags: bus master, fast devsel, latency 0, IRQ 47
        Memory at f6000000 (64-bit, non-prefetchable) [size=16M]
        Memory at e0000000 (64-bit, prefetchable) [size=256M]
        I/O ports at f000 [size=64]
        Expansion ROM at <unassigned> [disabled]
        Capabilities: <access denied>
        Kernel driver in use: i915
        Kernel modules: i915

Xorg.0.log is hundreds of lines. Anything in particular I should look for? Thanks!

jasonwryan · 2016-05-18 03:59:44

What driver(s) have you got installed for that card: names and numbers, please.

Look for errors in the log.

mcaceres · 2016-05-18 04:17:42

There was only one error in the file, which seems to have to do with video. I tried to provide as much context as possible.

[    27.329] (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory)
[    27.329] (II) LoadModule: "glx"
[    27.330] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so
[    27.342] (II) Module glx: vendor="X.Org Foundation"
[    27.342] 	compiled for 1.18.3, module version = 1.0.0
[    27.342] 	ABI class: X.Org Server Extension, version 9.0
[    27.342] (==) AIGLX enabled
[    27.342] (==) Matched intel as autoconfigured driver 0
[    27.342] (==) Matched intel as autoconfigured driver 1
[    27.342] (==) Matched modesetting as autoconfigured driver 2
[    27.342] (==) Matched fbdev as autoconfigured driver 3
[    27.342] (==) Matched vesa as autoconfigured driver 4
[    27.342] (==) Assigned the driver to the xf86ConfigLayout
[    27.342] (II) LoadModule: "intel"
[    27.344] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
[    27.346] (II) Module intel: vendor="X.Org Foundation"
[    27.346] 	compiled for 1.18.3, module version = 2.99.917
[    27.346] 	Module class: X.Org Video Driver
[    27.346] 	ABI class: X.Org Video Driver, version 20.0
[    27.346] (II) LoadModule: "modesetting"
[    27.346] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so
[    27.347] (II) Module modesetting: vendor="X.Org Foundation"
[    27.347] 	compiled for 1.18.3, module version = 1.18.3
[    27.347] 	Module class: X.Org Video Driver
[    27.347] 	ABI class: X.Org Video Driver, version 20.0
[    27.347] (II) LoadModule: "fbdev"
[    27.349] (WW) Warning, couldn't open module fbdev
[    27.349] (II) UnloadModule: "fbdev"
[    27.349] (II) Unloading fbdev
[    27.349] (EE) Failed to load module "fbdev" (module does not exist, 0)
[    27.349] (II) LoadModule: "vesa"
[    27.349] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so
[    27.349] (II) Module vesa: vendor="X.Org Foundation"
[    27.349] 	compiled for 1.18.0, module version = 2.3.4
[    27.349] 	Module class: X.Org Video Driver
[    27.349] 	ABI class: X.Org Video Driver, version 20.0
[    27.349] (II) intel: Driver for Intel(R) Integrated Graphics Chipsets:
	i810, i810-dc100, i810e, i815, i830M, 845G, 854, 852GM/855GM, 865G,
	915G, E7221 (i915), 915GM, 945G, 945GM, 945GME, Pineview GM,
	Pineview G, 965G, G35, 965Q, 946GZ, 965GM, 965GME/GLE, G33, Q35, Q33,
	GM45, 4 Series, G45/G43, Q45/Q43, G41, B43
[    27.349] (II) intel: Driver for Intel(R) HD Graphics: 2000-6000
[    27.349] (II) intel: Driver for Intel(R) Iris(TM) Graphics: 5100, 6100
[    27.349] (II) intel: Driver for Intel(R) Iris(TM) Pro Graphics: 5200, 6200, P6300
[    27.349] (II) modesetting: Driver for Modesetting Kernel Drivers: kms
[    27.349] (II) VESA: driver for VESA chipsets: vesa
[    27.350] (II) intel(0): Using Kernel Mode Setting driver: i915, version 1.6.0 20151218
[    27.350] (II) intel(0): SNA compiled from 2.99.917-645-g88733a7
[    27.350] (WW) Falling back to old probe method for modesetting
[    27.350] (WW) Falling back to old probe method for vesa
[    27.351] (--) intel(0): Integrated Graphics Chipset: Intel(R) HD Graphics 5500

Then lsmod | grep video gives

uvcvideo               86016  0
videobuf2_vmalloc      16384  1 uvcvideo
videobuf2_memops       16384  1 videobuf2_vmalloc
videobuf2_v4l2         20480  1 uvcvideo
videobuf2_core         36864  2 uvcvideo,videobuf2_v4l2
videodev              151552  3 uvcvideo,videobuf2_core,videobuf2_v4l2
media                  24576  2 uvcvideo,videodev
video                  36864  3 i915,dell_wmi,dell_laptop
usbcore               196608  7 btusb,uvcvideo,ehci_hcd,ehci_pci,usbhid,xhci_hcd,xhci_pci

Is that more what you were asking?

jasonwryan · 2016-05-18 05:46:51

No. What video drivers did you install? Names and versions:
https://wiki.archlinux.org/index.php/In … stallation

And post full logs, truncated versions are useless: https://bbs.archlinux.org/viewtopic.php?id=57855

mcaceres · 2016-05-18 17:13:55

Sorry about that. So, this problem has gone away. It was really odd

1. I connected via HDMI adapter an external monitor
2. I disconnected the VGA part from the monitor, but not the adapter. The laptop display settings showed two monitors. Display was still OK.
3. Rebooted. Disconnected HDMI. Now screen is working OK and display settings only shows laptop monitor.

No idea what happened. Here's a pastebin of my Xorg.log for my current session (working display): http://pastebin.com/SczBBy79

I have xf86-video-intel 1:2.99.917+645+g88733a7-1, xf86-video-vesa 2.3.4-2, lib32-mesa 11.2.2-1, mesa 11.2.2-1, mesa-libgl 11.2.2-1, lib32-mesa 11.2.2-1, lib32-mesa-libgl 11.2.2-1

Anyway, thank you for patient. I realize I was slow to answer. I appreciate the help!

jasonwryan · 2016-05-18 18:18:49

It was probably the update to xf86-video-intel that resolved your issue.

Please remember to mark your thread as [Solved] by editing your first post and prepending it to the title.

mcaceres · 2016-05-21 14:41:11

The problem came back so this is definitely not the case. The bottom of my screen is dark again and again I can't adjust brightness. This is my Xorg.log: http://pastebin.com/MrkAK793

Again, the drivers I installed were: xf86-video-intel 1:2.99.917+645+g88733a7-1, xf86-video-vesa 2.3.4-2, lib32-mesa 11.2.2-1, mesa 11.2.2-1, mesa-libgl 11.2.2-1, lib32-mesa 11.2.2-1, lib32-mesa-libgl 11.2.2-1

Even if I connect it to a powered off monitor, the laptop thinks it's connected and the screen is full again. Anyway, any other ideas? Thanks!

Last edited by mcaceres (2016-05-21 14:43:38)

mcaceres · 2016-05-22 23:12:41

Apparently connecting an adapter that is not connected ti anything also "fixes" it, but that is a rather cumbersome "solution." I do appreciate any other ideas on debugging this?

JohnBobSmith · 2016-05-23 06:08:19

Can you change/check the screen resolution using xrandr? The only other thing I can think of in regards to position of the screen is an OSD on the monitor itself. In which case you would mash buttons on your monitor to position the screen correctly. It may also be possible to do this with xrandr.

Arch Linux

#1 2016-05-18 02:46:02

Bottom of my screen is completely black

#2 2016-05-18 02:59:42

Re: Bottom of my screen is completely black

#3 2016-05-18 03:53:50

Re: Bottom of my screen is completely black

#4 2016-05-18 03:59:44

Re: Bottom of my screen is completely black

#5 2016-05-18 04:17:42

Re: Bottom of my screen is completely black

#6 2016-05-18 05:46:51

Re: Bottom of my screen is completely black

#7 2016-05-18 17:13:55

Re: Bottom of my screen is completely black

#8 2016-05-18 18:18:49

Re: Bottom of my screen is completely black

#9 2016-05-21 14:41:11

Re: Bottom of my screen is completely black

#10 2016-05-22 23:12:41

Re: Bottom of my screen is completely black

#11 2016-05-23 06:08:19

Re: Bottom of my screen is completely black

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