#1 2020-10-31 15:57:41

dumetrulo

Member

Registered: 2019-07-03

Posts: 17

Using arandr/xrandr results in shifted/cropped desktop

I have Lithium installed on a Dell Latitude E7450 with Intel graphics and FHD (1920×1080) screen. I have an external monitor with a 2560×1440 resolution.

When I try and use the external monitor, either arranging them using arandr, or using an xrandr command, the desktop appears shifted about a third of the way upwards, is not extended to cover the whole of the screen, and the mouse cursor is not displayed where the system thinks it is (the system's sense of where the cursor is is shifte up by the same amount the desktop is). You can see it in the following photo (note the partially visible file manager window):
This result was obtained running the command:

xrandr --output HDMI-1 --auto --primary --output eDP-1 --off

If I try and use both internal and external displays, I have a similarly shifted output on the internal display as well, and no output on the external display except the mouse pointer.

Funnily enough, when the screen locks, the lock screen with the password prompt shows correctly on the external monitor.

Any constructive ideas?

0x4FF

Member

Registered: 2020-11-24

Posts: 6

Re: Using arandr/xrandr results in shifted/cropped desktop

What does

xrandr -q

outputs?

ohnonot

...again

Registered: 2015-09-29

Posts: 5,197

Website

Re: Using arandr/xrandr results in shifted/cropped desktop

Also, what sort of GPU (how old) => 'lspci -k' and what sort of cable to connect?
I recently heard that HDMI didn't support more than 1920x1080 until 2012 or so...

---

Please use CODE tags for code.
Search youtube without a browser: repo | thread
BL quote proposals to this thread please.
my repos / my repos

dumetrulo

Member

Registered: 2019-07-03

Posts: 17

Re: Using arandr/xrandr results in shifted/cropped desktop

What does

xrandr -q

outputs?

This is without the monitor connected:

huz@e7k45-bl:/tmp$ xrandr -q
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
eDP-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 309mm x 174mm
   1920x1080     60.02*+  60.01    59.97    59.96    59.93    47.99  
   1680x1050     59.95    59.88  
   1600x1024     60.17  
   1400x1050     59.98  
   1600x900      59.99    59.94    59.95    59.82  
   1280x1024     60.02  
   1440x900      59.89  
   1400x900      59.96    59.88  
   1280x960      60.00  
   1440x810      60.00    59.97  
   1368x768      59.88    59.85  
   1360x768      59.80    59.96  
   1280x800      59.99    59.97    59.81    59.91  
   1152x864      60.00  
   1280x720      60.00    59.99    59.86    59.74  
   1024x768      60.04    60.00  
   960x720       60.00  
   928x696       60.05  
   896x672       60.01  
   1024x576      59.95    59.96    59.90    59.82  
   960x600       59.93    60.00  
   960x540       59.96    59.99    59.63    59.82  
   800x600       60.00    60.32    56.25  
   840x525       60.01    59.88  
   864x486       59.92    59.57  
   800x512       60.17  
   700x525       59.98  
   800x450       59.95    59.82  
   640x512       60.02  
   720x450       59.89  
   700x450       59.96    59.88  
   640x480       60.00    59.94  
   720x405       59.51    58.99  
   684x384       59.88    59.85  
   680x384       59.80    59.96  
   640x400       59.88    59.98  
   576x432       60.06  
   640x360       59.86    59.83    59.84    59.32  
   512x384       60.00  
   512x288       60.00    59.92  
   480x270       59.63    59.82  
   400x300       60.32    56.34  
   432x243       59.92    59.57  
   320x240       60.05  
   360x202       59.51    59.13  
   320x180       59.84    59.32  
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)

Also, what sort of GPU (how old) => 'lspci -k' and what sort of cable to connect?

This is a Dell Latitude E7450 from around 2010 with Intel HD 5500 integrated GPU:

huz@e7k45-bl:/tmp$ sudo lspci -k
00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09)
	Subsystem: Dell Broadwell-U Host Bridge -OPI
	Kernel driver in use: bdw_uncore
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 5500 (rev 09)
	DeviceName:  Onboard IGD
	Subsystem: Dell HD Graphics 5500
	Kernel driver in use: i915
	Kernel modules: i915
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
	Subsystem: Dell Broadwell-U Audio Controller
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
00:04.0 Signal processing controller: Intel Corporation Broadwell-U Processor Thermal Subsystem (rev 09)
	Subsystem: Dell Broadwell-U Processor Thermal Subsystem
	Kernel driver in use: proc_thermal
	Kernel modules: processor_thermal_device
00:14.0 USB controller: Intel Corporation Wildcat Point-LP USB xHCI Controller (rev 03)
	Subsystem: Dell Wildcat Point-LP USB xHCI Controller
	Kernel driver in use: xhci_hcd
	Kernel modules: xhci_pci
00:16.0 Communication controller: Intel Corporation Wildcat Point-LP MEI Controller #1 (rev 03)
	Subsystem: Dell Wildcat Point-LP MEI Controller
	Kernel driver in use: mei_me
	Kernel modules: mei_me
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection (3) I218-LM (rev 03)
	DeviceName:  Onboard LAN
	Subsystem: Dell Ethernet Connection (3) I218-LM
	Kernel driver in use: e1000e
	Kernel modules: e1000e
00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition Audio Controller (rev 03)
	Subsystem: Dell Wildcat Point-LP High Definition Audio Controller
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #1 (rev e3)
	Kernel driver in use: pcieport
00:1c.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #4 (rev e3)
	Kernel driver in use: pcieport
00:1c.4 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #5 (rev e3)
	Kernel driver in use: pcieport
00:1d.0 USB controller: Intel Corporation Wildcat Point-LP USB EHCI Controller (rev 03)
	Subsystem: Dell Wildcat Point-LP USB EHCI Controller
	Kernel driver in use: ehci-pci
	Kernel modules: ehci_pci
00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller (rev 03)
	Subsystem: Dell Wildcat Point-LP LPC Controller
	Kernel driver in use: lpc_ich
	Kernel modules: lpc_ich
00:1f.2 RAID bus controller: Intel Corporation 82801 Mobile SATA Controller [RAID mode] (rev 03)
	Subsystem: Dell 82801 Mobile SATA Controller [RAID mode]
	Kernel driver in use: ahci
	Kernel modules: ahci
00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller (rev 03)
	Subsystem: Dell Wildcat Point-LP SMBus Controller
	Kernel modules: i2c_i801
01:00.0 SD Host controller: O2 Micro, Inc. SD/MMC Card Reader Controller (rev 01)
	Subsystem: Dell SD/MMC Card Reader Controller
	Kernel driver in use: sdhci-pci
	Kernel modules: sdhci_pci
02:00.0 Network controller: Intel Corporation Wireless 7265 (rev 59)
	Subsystem: Intel Corporation Dual Band Wireless-AC 7265
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi

The screen looks the same whether connected via HDMI or DP. It is a BenQ PD2700Q with a native resolution of 2560x1440, and has both HDMI and DP connections.