*** This bug is a duplicate of bug 1901470 ***
https://bugs.launchpad.net/bugs/1901470
I have decoded your monitor's EDID and it does show the desired
resolution but only as a "Detailed mode". So that would appear to make
this a duplicate of bug 1901470.
EDID version: 1.3
Manufacturer: GSM Model 23025 Serial Number 10845
Made in week 9 of 2015
Digital display
Maximum image size: 80 cm x 34 cm
Gamma: 2.20
DPMS levels: Standby Suspend Off
RGB color display
First detailed timing is preferred timing
Color Characteristics
Red: 0.6513, 0.3320
Green: 0.3066, 0.6308
Blue: 0.1503, 0.0595
White: 0.3134, 0.3291
Established Timings I & II
720x400 70.082 Hz 9:5 31.467 kHz 28.320 MHz (IBM)
640x480 59.940 Hz 4:3 31.469 kHz 25.175 MHz (DMT)
640x480 75.000 Hz 4:3 37.500 kHz 31.500 MHz (DMT)
800x600 60.317 Hz 4:3 37.879 kHz 40.000 MHz (DMT)
800x600 75.000 Hz 4:3 46.875 kHz 49.500 MHz (DMT)
1024x768 60.004 Hz 4:3 48.363 kHz 65.000 MHz (DMT)
1024x768 75.029 Hz 4:3 60.023 kHz 78.750 MHz (DMT)
1280x1024 75.025 Hz 5:4 79.976 kHz 135.000 MHz (DMT)
1152x870 75.062 Hz 192:145 68.681 kHz 100.000 MHz (Apple)
Standard Timings
1152x864 75.000 Hz 4:3 67.500 kHz 108.000 MHz (DMT)
1280x1024 60.020 Hz 5:4 63.981 kHz 108.000 MHz (DMT)
1280x720 60.000 Hz 16:9 45.000 kHz 74.250 MHz (DMT)
1600x900 60.000 Hz 16:9 60.000 kHz 108.000 MHz (DMT, RB)
1680x1050 59.954 Hz 16:10 65.290 kHz 146.250 MHz (DMT)
Detailed mode: Clock 185.580 MHz, 798 mm x 334 mm
2560 2624 2688 2784 ( 64 64 96)
1080 1083 1093 1111 ( 3 10 18)
-hsync -vsync
VertFreq: 60.000 Hz, HorFreq: 66.659 kHz
Detailed mode: Clock 148.500 MHz, 798 mm x 334 mm
1920 2008 2052 2200 ( 88 44 148)
1080 1084 1089 1125 ( 4 5 36)
+hsync +vsync
VertFreq: 60.000 Hz, HorFreq: 67.500 kHz
Display Product Name: LG ULTRAWIDE
Display Range Limits
Monitor ranges (GTF): 56-75 Hz V, 30-90 kHz H, max dotclock 240 MHz
Has 1 extension block
Checksum: 0x7b
----------------
CTA-861 Extension Block Revision 3
Underscans PC formats by default
Basic audio support
Supports YCbCr 4:4:4
Supports YCbCr 4:2:2
1 native detailed modes
25 bytes of CTA data blocks
Video Data Block
1920x1080 60.000 Hz 16:9 67.500 kHz 148.500 MHz (VIC 16, native)
1280x720 60.000 Hz 16:9 45.000 kHz 74.250 MHz (VIC 4)
720x480 59.940 Hz 16:9 31.469 kHz 27.000 MHz (VIC 3)
1920x1080 30.000 Hz 16:9 33.750 kHz 74.250 MHz (VIC 34)
1920x1080i 50.000 Hz 16:9 28.125 kHz 74.250 MHz (VIC 20)
720x576 50.000 Hz 16:9 31.250 kHz 27.000 MHz (VIC 18)
1920x1080i 60.000 Hz 16:9 33.750 kHz 74.250 MHz (VIC 5)
1920x1080 50.000 Hz 16:9 56.250 kHz 148.500 MHz (VIC 31)
640x480 59.940 Hz 4:3 31.469 kHz 25.175 MHz (VIC 1)
1280x720 50.000 Hz 16:9 37.500 kHz 74.250 MHz (VIC 19)
Audio Data Block
Linear PCM, max channels 2
Supported sample rates (kHz): 48 44.1 32
Supported sample sizes (bits): 24 20 16
Speaker Allocation Data Block
Speaker map:
FL/FR - Front Left/Right
Vendor-Specific Data Block, OUI 0x000c03 (HDMI)
Source physical address 1.0.0.0
Detailed mode: Clock 148.500 MHz, 598 mm x 337 mm
1920 2008 2052 2200 ( 88 44 148)
1080 1084 1089 1125 ( 4 5 36)
+hsync +vsync
VertFreq: 60.000 Hz, HorFreq: 67.500 kHz
Detailed mode: Clock 74.250 MHz, 598 mm x 337 mm
1920 2008 2052 2200 ( 88 44 148)
540 542 547 562 ( 2 5 15)
+hsync +vsync
VertFreq: 60.000i Hz, HorFreq: 33.750 kHz
Detailed mode: Clock 74.250 MHz, 598 mm x 337 mm
1280 1390 1430 1650 (110 40 220)
720 725 730 750 ( 5 5 20)
+hsync +vsync
VertFreq: 60.000 Hz, HorFreq: 45.000 kHz
Detailed mode: Clock 27.000 MHz, 598 mm x 337 mm
720 736 798 858 ( 16 62 60)
480 489 495 525 ( 9 6 30)
-hsync -vsync
VertFreq: 59.940 Hz, HorFreq: 31.469 kHz
Detailed mode: 00 00 00 ff 00 35 30 39 4e 54 4b 46 30 41 38 34 35 0a
.....509NTKF0A845.
Checksum: 0x8c
** This bug has been marked a duplicate of bug 1901470
[modeset][i915] Native resolution (EDID detailed mode) of 2560x1440 or
2560x1080 not listed, defaults to 1920x1080 instead
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1929456
Title:
XrandR does not propose 21:9 resolution
Status in xorg package in Ubuntu:
Confirmed
Bug description:
If come here over bug 1895301 "XrandR does not propose 3440x1440 21:9
resolution".
In bug 1895301 sombody wrote "We just need one person experiencing the bug to
open a bug with the relevant system details automatically attached." - so I did.
I have a similar problem with a 21:9 monitor with a resolution of
2560x1080. It's a LG 25UB55-B on a HP docking station A7E32A, DVI
output with adapter to HDMI, HDMI cable and input to the monitor via
HDMI. Laptop is an HP Elitebook 8440p (Intel i5-520 with Intel HD
Graphics (ILK)), internal display with 1366*768 is in use as well.
I had Ubuntu 18.04 LTS before until January this year, with automatic
updates on, so presumably up to date. There it worked fine out of the
box, i.e. since first install I had the full resolution of 21:9 in
2560x1080 on my external monitor.
I didn't change any hardware, just installed Ubuntu 20.04 from DVD, an it
stopped working.
I got only 16:9 with 1920x1080.
I've updated to Ubuntu 20.10, tried Ubuntu 21.04 (from DVD as well), changed
cable and adapter, nothing helped.
Did some reseach with google and found the mentioned bug 1895301. The
workaround worked, I got full resolution of 2560x1080 on the external display.
It is not permanent, so at the moment of filing this bug, I'm still back on
the 16:9 with 1920x1080.
ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: xorg 1:7.7+19ubuntu15
ProcVersionSignature: Ubuntu 5.8.0-53.60-generic 5.8.18
Uname: Linux 5.8.0-53-generic x86_64
ApportVersion: 2.20.11-0ubuntu50.6
Architecture: amd64
BootLog: Error: [Errno 13] Keine Berechtigung: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
CurrentDmesg: Error: command ['pkexec', 'dmesg'] failed with exit code 126:
Error executing command as another user: Request dismissed
Date: Mon May 24 20:23:52 2021
DistUpgraded: 2021-05-23 15:18:23,444 ERROR got error from PostInstallScript
./xorg_fix_proprietary.py (g-exec-error-quark: Kindprozess
»./xorg_fix_proprietary.py« konnte nicht ausgeführt werden (Datei oder
Verzeichnis nicht gefunden) (8))
DistroCodename: groovy
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
Intel Corporation Core Processor Integrated Graphics Controller [8086:0046]
(rev 02) (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Core Processor Integrated Graphics
Controller [103c:172a]
InstallationDate: Installed on 2021-02-10 (103 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
MachineType: Hewlett-Packard HP EliteBook 8440p
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=de_DE.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.8.0-53-generic
root=/dev/mapper/vgubuntu-root ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: Upgraded to groovy on 2021-05-23 (1 days ago)
dmi.bios.date: 09/13/2013
dmi.bios.release: 15.36
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68CCU Ver. F.24
dmi.board.name: 172A
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 30.34
dmi.chassis.asset.tag: CZC040C94D
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.ec.firmware.release: 48.52
dmi.modalias:
dmi:bvnHewlett-Packard:bvr68CCUVer.F.24:bd09/13/2013:br15.36:efr48.52:svnHewlett-Packard:pnHPEliteBook8440p:pvr:rvnHewlett-Packard:rn172A:rvrKBCVersion30.34:cvnHewlett-Packard:ct10:cvr:
dmi.product.family: 103C_5336AN
dmi.product.name: HP EliteBook 8440p
dmi.product.sku: J2544631
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.102-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.10.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20200714-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
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