[SOLVED] Monitor not showing proper resolution

[afreddy]

I installed a new Dell monitor to my computer, it is not showing proper resolution. It ideally show 1920 X 1080 resolution but it does not. It works on 1084 x 768 resolution. If I try to change the resolution the screen moves to my right and I get a black band on the left. When I first installed the monitor the 1920 resolution worked ok for a couple of days then I started to get intermittent screen blackout while the monitor power light remained steady. Please help me to get my screen resolution back

 

[rgd1101]

full system spec?

 

[kanewolf]

I installed a new Dell monitor to my computer, it is not showing proper resolution. It ideally show 1920 X 1080 resolution but it does not. It works on 1084 x 768 resolution. If I try to change the resolution the screen moves to my right and I get a black band on the left. When I first installed the monitor the 1920 resolution worked ok for a couple of days then I started to get intermittent screen blackout while the monitor power light remained steady. Please help me to get my screen resolution back

What interface type are you using? HDMI, DP, DVI, VGA? Are you using any adapters like HDMI to VGA ?

 

[afreddy]

VGA cable without any interface. No adaptors

 

[kanewolf]

VGA cable without any interface. No adaptors

The VGA interface is probably what is limiting your resolution. What model Dell monitor ?

 

[afreddy]

Dell E series 2421. I don't have a HDMI port on my computer

 

[kanewolf]

Dell E series 2421. I don't have a HDMI port on my computer

I don't see anything in the manual -- https://downloads.dell.com/manuals/...s/dell-e2421hn-monitor_user's-guide_en-us.pdf that says the VGA is limited.

Have you downloaded the monitor driver (.INF file) ? That will tell Windows what resolutions the monitor supports.
You may also have to use the "Auto Adjust" option -- Also described in the manual.

 

[afreddy]

Spent 6 hours reinstalling windows 10 twice and then tried with installing drivers. I'm at my wits end now

 

[rgd1101]

does windows 10 id the monitor or just generic? try different refresh rate on windows

 

[afreddy]

Monitor is ided as generic. It does not identify the monitor. Refresh rate is 60
The following connected monitors have been detected:
Def Plug and Play Monitor - Default_Monitor

Drivers for the following monitors have been found:
Dell E2421HN (Analog) - DELF128
Dell E2421HN (HDMI) - DELF129

Drivers for the following connected monitor can be installed:
None
This is after downloading the drivers and trying to install them

 

[rgd1101]

did you get the driver here?
https://www.dell.com/support/home/tr-tr/drivers/driversdetails?driverid=n5d6n

what is your gpu?

 

[afreddy]

Any help??

 

[afreddy]

I don't see anything in the manual -- https://downloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-e2421hn-monitor_user's-guide_en-us.pdf that says the VGA is limited.

Have you downloaded the monitor driver (.INF file) ? That will tell Windows what resolutions the monitor supports.
You may also have to use the "Auto Adjust" option -- Also described in the manual.

Any help?

 

[kanewolf]

Any help?

Nothing that we haven't already suggested. You need to get the INF file loaded to tell Windows what the capabilities of the monitor.
But, my recommendation is to get an alternate interface. VGA should not be used in 2021.

 

[revodo]

I was running 1600x1200 on CRT monitors back in the late 90s / early 2000s with VGA cables, so it's probably not that. As others have said, check the drivers, try updating them or finding alternatives.

 

[afreddy]

Nothing that we haven't already suggested. You need to get the INF file loaded to tell Windows what the capabilities of the monitor.
But, my recommendation is to get an alternate interface. VGA should not be used in 2021.

The following connected monitors have been detected:
Def Plug and Play Monitor - Default_Monitor

Drivers for the following monitors have been found:
Dell E2421HN (Analog) - DELF128
Dell E2421HN (HDMI) - DELF129

Drivers for the following connected monitor can be installed:
None
This is after downloading the drivers and trying to install them

 

[afreddy]

Tried to download the drivers they don't get installed. AMD vision engine control center is installed. My Processor is an AMD Phenom an Motherboard is a GA 78LMT

 

[afreddy]

Nothing that we haven't already suggested. You need to get the INF file loaded to tell Windows what the capabilities of the monitor.
But, my recommendation is to get an alternate interface. VGA should not be used in 2021.

;==================================================
; S2421HN.inf Version: 1.0 06/03/2020
;
; This is setup information file for monitor.
;
; Copyright (c) 2020 Dell Inc. All rights reserved.
;==================================================

[Version]
Signature = "$Windows NT$"
Class = Monitor
ClassGuid = {4d36e96e-e325-11ce-bfc1-08002be10318}
Provider = %Dell%
CatalogFile = S2421HN.cat
DriverVer = 06/03/2020, 1.0.0.0
PnpLockDown = 1

[SourceDisksNames]
1 = %DiskName%

[SourceDisksFiles]
S2421HN.icm = 1

[DestinationDirs]
S2421HN.Copyfiles = 23

[Manufacturer]
%Dell% = Dell, NTx86, NTamd64

[Dell.NTx86]
%S2421HN.HDMI1% = S2421HN.HDMI1.Install, Monitor\DEL41F1
%S2421HN.HDMI2% = S2421HN.HDMI2.Install, Monitor\DEL41F2


[Dell.NTamd64]
%S2421HN.HDMI1% = S2421HN.HDMI1.Install, Monitor\DEL41F1
%S2421HN.HDMI2% = S2421HN.HDMI2.Install, Monitor\DEL41F2

[S2421HN.HDMI1.Install]
DelReg = DEL_CURRENT_REG
AddReg = S2421HN.HDMI1.AddReg, 1920, DPMS
CopyFiles = S2421HN.CopyFiles

[S2421HN.HDMI2.Install]
DelReg = DEL_CURRENT_REG
AddReg = S2421HN.HDMI2.AddReg, 1920, DPMS
CopyFiles = S2421HN.CopyFiles

[DEL_CURRENT_REG]
HKR,MODES
HKR,,MaxResolution
HKR,,DPMS
HKR,,ICMProfile

[S2421HN.HDMI1.AddReg]
HKR,"MODES\1920,1080",Mode1,,"30.0-83.0,48.0-75.0,+,+"
HKR,,ICMProfile,0,"S2421HN.icm"

[S2421HN.HDMI2.AddReg]
HKR,"MODES\1920,1080",Mode1,,"30.0-83.0,48.0-75.0,+,+"
HKR,,ICMProfile,0,"S2421HN.icm"

[1920]
HKR,,MaxResolution,,"1920,1080"

[DPMS]
HKR,,DPMS,,1

[S2421HN.CopyFiles]
S2421HN.icm

[S2421HN.HDMI1.Install.Services]
AddService = monitor, %SPSVCINST_ASSOCSERVICE%, Monitor_Service.Install

[S2421HN.HDMI2.Install.Services]
AddService = monitor, %SPSVCINST_ASSOCSERVICE%, Monitor_Service.Install

[Monitor_Service.Install]
DisplayName = %Monitor.SVCDESC%
ServiceType = 1 ; SERVICE_KERNEL_DRIVER
StartType = 3 ; SERVICE_DEMAND_START
ErrorControl = 1 ; SERVICE_ERROR_NORMAL
ServiceBinary = %12%\monitor.sys

[Strings]
SPSVCINST_ASSOCSERVICE = 0x00000002
Monitor.SVCDESC = "Monitor Class Function Driver Service"
Dell = "Dell Inc."
DiskName = "Dell Monitor Installation Disk"
S2421HN.HDMI1 = "S2421HN (HDMI1)"
S2421HN.HDMI2 = "S2421HN (HDMI2)"

That is what the .INF file says

 

[afreddy]

I was running 1600x1200 on CRT monitors back in the late 90s / early 2000s with VGA cables, so it's probably not that. As others have said, check the drivers, try updating them or finding alternatives.

Tried updating the drivers does not work

full system spec?

OS Name Microsoft Windows 10 Pro
Version 10.0.19043 Build 19043
Other OS Description Not Available
OS Manufacturer Microsoft Corporation
System Name NEEL-PC
System Manufacturer Gigabyte Technology Co., Ltd.
System Model GA-78LMT-S2
System Type x64-based PC
System SKU
Processor AMD Phenom(tm) II X2 550 Processor, 3100 Mhz, 2 Core(s), 2 Logical Processor(s)
BIOS Version/Date Award Software International, Inc. F6, 1/9/2014
SMBIOS Version 2.4
Embedded Controller Version 255.255
BIOS Mode Legacy
BaseBoard Manufacturer Gigabyte Technology Co., Ltd.
BaseBoard Product GA-78LMT-S2
BaseBoard Version x.x
Platform Role Desktop
Secure Boot State Unsupported
PCR7 Configuration Binding Not Possible
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume2
Locale United States
Hardware Abstraction Layer Version = "10.0.19041.964"
User Name Neel-PC\Neel
Time Zone India Standard Time
Installed Physical Memory (RAM) 8.00 GB
Total Physical Memory 7.50 GB
Available Physical Memory 2.49 GB
Total Virtual Memory 15.0 GB
Available Virtual Memory 7.47 GB
Page File Space 7.50 GB
Page File C:\pagefile.sys
Kernel DMA Protection Off
Virtualization-based security Not enabled
Device Encryption Support Reasons for failed automatic device encryption: TPM is not usable, PCR7 binding is not supported, Hardware Security Test Interface failed and device is not Modern Standby, Un-allowed DMA capable bus/device(s) detected, TPM is not usable
Hyper-V - VM Monitor Mode Extensions Yes
Hyper-V - Second Level Address Translation Extensions Yes
Hyper-V - Virtualization Enabled in Firmware No
Hyper-V - Data Execution Protection Yes

 

[rgd1101]

might have a better luck getting a dvi to hdmi cable/adapter.