Thanks for the bug report. The attached Xorg logs appear to be from before the bug as they show a resolution of 1600x900. But I can also see that your current resolution is 800x600 in Xrandr.txt. It seems Xorg now can't even tell what kind of monitor connection it is.
Please try booting an older kernel by accessing the grub menu (press Esc at startup). Do you find older kernel versions avoid the problem? Please also try unplugging and reconnecting the monitor. ** Package changed: xorg (Ubuntu) => linux-hwe-5.11 (Ubuntu) ** Changed in: linux-hwe-5.11 (Ubuntu) Status: New => Incomplete ** Summary changed: - My resolution has changed to 800x600 , it was in higher than 1000 I dont know the exact no + [i915] My resolution has changed to 800x600, it was 1600x900 before -- 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/1943154 Title: [i915] My resolution has changed to 800x600, it was 1600x900 before Status in linux-hwe-5.11 package in Ubuntu: Incomplete Bug description: My resolution has suddenly changed from a higher resolution from to low resolution to 800x600 and it is now showing only one resolution option ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.11.0-34.36~20.04.1-generic 5.11.22 Uname: Linux 5.11.0-34-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.18 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Thu Sep 9 20:32:10 2021 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0102] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:2042] ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-34-generic root=UUID=78d7ef17-370f-42ec-839a-ad90938c65fb ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/24/2012 dmi.bios.vendor: Intel Corp. dmi.bios.version: HOH6110H.86A.0010.2012.0424.1632 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: DH61HO dmi.board.vendor: Intel Corporation dmi.board.version: AAG62445-102 dmi.chassis.type: 3 dmi.modalias: dmi:bvnIntelCorp.:bvrHOH6110H.86A.0010.2012.0424.1632:bd04/24/2012:svn:pn:pvr:sku:rvnIntelCorporation:rnDH61HO:rvrAAG62445-102:cvn:ct3:cvr: version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.105-3~20.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 21.0.3-0ubuntu0.3~20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx 21.0.3-0ubuntu0.3~20.04.1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.11-1ubuntu1~20.04.2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.11/+bug/1943154/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp