[Bug 1890436] Re: VGA signal is ghosted and stretched (Intel® HD Graphics 2500)
Well this is a PC with onboard intel graphics. A memory issue would mean RAM problem which is not the case here. I can see a visual corruption. If you can't see it then there is nothing more to say here. You are welcomed to see the dmesg and figure out what happens. There is no hardware damage on my PC. This occurs with a specific BIOS setting as I described above and it affects only ubuntu. Windows 10 2004 work fine on my "damaged" PC. If you wish to get a screenshot from windows working fine, I can upload it here. I might test wayland at the evening but linux kernel detects the problem and shouts about underrun error in FIFO A as the first attached image with dmesg shows. So if you have anything usefull to write that is related to this bug report, please do so. If you just continue to say that my hardware is damaged you are free to close this bug right away. I will try another distro and open another bug there... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890436 Title: VGA signal is ghosted and stretched (Intel® HD Graphics 2500) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1890436] Re: VGA image is ghosted and stretched (LG L1953S)
** Attachment added: "X log with DP and VGA#2 monitors" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1890436/+attachment/5399181/+files/Xorg.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890436 Title: VGA image is ghosted and stretched (LG L1953S) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1890436] Re: VGA image is ghosted and stretched (LG L1953S)
** Attachment added: "Corrupted font display at VGA#1" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1890436/+attachment/5399175/+files/bad-VGA-22b.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890436 Title: VGA image is ghosted and stretched (LG L1953S) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1890436] Re: VGA image is ghosted and stretched (LG L1953S)
** Attachment added: "Cursor corruption at VGA#2(same seen at VGA#1)" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1890436/+attachment/5399180/+files/new-VGA-cursor-29.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890436 Title: VGA image is ghosted and stretched (LG L1953S) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1890436] Re: VGA image is ghosted and stretched (LG L1953S)
** Attachment added: "Corruption of home folder at VGA#2" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1890436/+attachment/5399178/+files/new-VGA-16.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890436 Title: VGA image is ghosted and stretched (LG L1953S) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1890436] Re: VGA image is ghosted and stretched (LG L1953S)
** Attachment added: "Corrupted font display at VGA#2" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1890436/+attachment/5399176/+files/bad-VGA-48b.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890436 Title: VGA image is ghosted and stretched (LG L1953S) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1890436] Re: VGA image is ghosted and stretched (LG L1953S)
** Attachment added: "Corruption of welcoming screen at VGA#2" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1890436/+attachment/5399179/+files/new-VGA-50.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890436 Title: VGA image is ghosted and stretched (LG L1953S) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1890436] Re: VGA image is ghosted and stretched (LG L1953S)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890436 Title: VGA image is ghosted and stretched (LG L1953S) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1890436] Re: VGA image is ghosted and stretched (LG L1953S)
Hello, thank you for your early reply! I am afraid that you haven't got the big picture here. On my side, there is no doubt that I am getting a visual corruption. Just take a look at the attached images. The video signal is good since the monitor works normal when I enable CSM setting in BIOS. As you have suggested, I used a different VGA cable having double thickness than the initial one and I am still getting the same behaviour. If it was a signalling issue the kernel would probably not print any warning messages. Since I have another VGA monitor on my desk, I went a step ahead and connected this VGA monitor instead since I hadn't tested this case with that monitor. As expected, I got exactly the same behaviour. That is smooth display on VGA monitor when CSM is enabled and corruption when CSM is disabled. As a proof of it, I am uploading images from the third monitor. Take a closer look at the cursor as it has blank lines after each horizontal line. As you can see, the same applies to fonts when switching to console view. I am also uploading the X log with that monitor. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890436 Title: VGA image is ghosted and stretched (LG L1953S) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1890436] Re: VGA image is ghosted and stretched (LG L1953S)
** Attachment added: "Normal font display at DP" https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1890436/+attachment/5399173/+files/good-DP-01b.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890436 Title: VGA image is ghosted and stretched (LG L1953S) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1890436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1890436] Re: Screen corruption with multi monitor setup
** Attachment added: "Huge dmesg with active DRM debugging" https://bugs.launchpad.net/ubuntu/+bug/1890436/+attachment/5398930/+files/m92.hdmg.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890436 Title: Screen corruption with multi monitor setup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1890436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1890436] Re: Screen corruption with multi monitor setup
** Attachment added: "Initial corrupted screen" https://bugs.launchpad.net/ubuntu/+bug/1890436/+attachment/5398927/+files/302.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890436 Title: Screen corruption with multi monitor setup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1890436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1890436] Re: Screen corruption with multi monitor setup
** Attachment added: "Initial X log" https://bugs.launchpad.net/ubuntu/+bug/1890436/+attachment/5398929/+files/Xorg.0.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890436 Title: Screen corruption with multi monitor setup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1890436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1890436] Re: Screen corruption with multi monitor setup
** Attachment added: "Corrupted screen displaying home folder" https://bugs.launchpad.net/ubuntu/+bug/1890436/+attachment/5398928/+files/941.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890436 Title: Screen corruption with multi monitor setup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1890436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1890436] [NEW] Screen corruption with multi monitor setup
Public bug reported: Hello, last week I was digging in the BIOS of my PC at work since I tried to see if there is a way to update the dbx for secure boot. Since there was no option to perform this task, I modified some settings. In detail, I disabled CSM in BIOS and that's when hell broke loose! To get an idea about the hardware, the Lenovo machine isn't running the latest BIOS as its updater is broken and won't update it within win or its ISO image. It uses the previous version released by its manufacturer. The machine has an XGA VGA monitor and a WQHD DP monitor. When CSM is enabled the DP monitor is lit first and then the VGA one prior OS loading. When CSM is disabled it goes the other way around. The VGA monitor is lit and the DP one opens up during OS load. With CSM disabled the VGA monitor is the primary one and it is corrupted as you can see on the pictures I have attached. Interestingly printing screens within Ubuntu does not capture the corruption problem I am getting as you can see on the pictures I have also attached. Neither X log contains anything useful. The issue is repeatable on every boot. As I have seen on other bug reports, I have enabled DRM debug, captured the dmesg using a huge buffer to get it and have uploaded it as well. I hope that it will help you track this issue down and fix it soon. Since I will be away some days for vacation, I will have physical access to it till this Friday and will get back to work at the 24th of August. In the mean time, I hope that someone will pinpoint the root cause of it and prepare a patch. Since this machine is running w10 2004, it should be noted that in win I do not get any corruption at all either in CSM mode or UEFI mode. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30 Uname: Linux 5.4.0-26-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CasperVersion: 1.445 CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Wed Aug 5 11:30:51 2020 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [8086:0152] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller [17aa:3083] LiveMediaBuild: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) MachineType: LENOVO 3209C54 ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/username.seed maybe-ubiquity quiet splash --- SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/17/2018 dmi.bios.vendor: LENOVO dmi.bios.version: 9SKT9BAUS dmi.board.name: MAHOBAY dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.type: 3 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvr9SKT9BAUS:bd07/17/2018:svnLENOVO:pn3209C54:pvrThinkCentreM92p:rvnLENOVO:rnMAHOBAY:rvrNotDefined:cvnLENOVO:ct3:cvrNone: dmi.product.family: To be filled by O.E.M. dmi.product.name: 3209C54 dmi.product.sku: LENOVO_MT_3209 dmi.product.version: ThinkCentre M92p dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.4-2ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2 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 ** Affects: ubuntu Importance: Undecided Status: New ** Tags: amd64 apport-bug corruption focal third-party-packages ubuntu ** Attachment added: "Image captured inside Ubuntu" https://bugs.launchpad.net/bugs/1890436/+attachment/5398910/+files/54.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1890436 Title: Screen corruption with multi monitor setup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1890436/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
