@Aaron Ma
I want to test your patch. But seems it would patch with error. I guess, the
new 18.04 source code have been change to:
list_add_tail(&vgadev->list, &vga_list);
instead of:
- list_add(&vgadev->list, &vga_list);
+ list_add_tail(&vgadev->list, &vga_list);
Does it mean
For #44 Aaron's suggested patch, it seems patch have been included after
4.15.0-46. The testing 18.04.2 iso with 4.15.0-48 kernel seems the
system would be hang on language selection after select install server
of grub screen. So it seems this hibmc_drm would caused another this
hang issues too.
T
For #44, in the following testing, if disable hibmc_drm loading, then it
works fine and would not be hang.
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Title:
Ubuntu 18.04 d-i
This looks to me as if Ubuntu (the kernel, Wayland, and/or the X server,
depending on when the problem occurs) is delivering a video mode that
the display device can't handle. (With VGA, the display should deliver
its capabilities to the computer via EDID, but this doesn't always work
correctly.) T
This bug seems related with the kernel or 4.15.0-20 of d-i ISO. Please
refer to #18 for test results on different kernel.
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Title:
Ub
The daily build is still use 4.15.0-20 kernel.
http://cdimage.ubuntu.com/ubuntu-server/bionic/daily/current/bionic-server-amd64.iso
Anyone can confirm that the 18.04.1 d-i install iso would update the
kernel.
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I have tested with 18.04.1 on Huawei FusionServer 2288 again. The screen
blure is same. The kernel of this iso have been update to
4.15.0-29-generic.
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I just tested with /boot/vmlinuz-4.15.0-29-generic which from my laptop
( to replace install/vmlinuz with this file), it would be screen blur.
If I use 4.15.0-32-generic, blur would disappear.
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The 16.04.5 ga-kernel wouldn't be screen blur and their syslog are
enclosed.
** Attachment added: "syslog for 16.04.5 ga-kernel which are not screen blur"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1762940/+attachment/5179080/+files/syslog-16045-noblur.txt
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replace 18.04.1 with 4.15.0-29 kernel from my laptop (16.04) and it
would be screen blur too. The syslog are enclosed here. If I replacing
it with 4.15.0-32-generic from my laptop, it would not be screen bure on
language select screen, but the system seems hanged (died) in case I
can't switch to tt
The 18.04.1 ga-kernel (4.15.0-29) would be screen blur. The syslog are
enclosed too.
** Attachment added: "18.04.1 d-i install iso screen blur syslog"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1762940/+attachment/5179081/+files/syslog-180401-d-i-iso-blur.txt
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I test 16.04.5 ga-kernel would not be screen blur but the hwe-
kernel(4.15.0-29) which is same as 18.04.1 would become screen blur.
The 16.04.5 hwe (blur) syslog are enclosed.
** Attachment added: "16.04.5 hwe-kernel (4.15.0-29) is blur"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/17
In the screen blur kernel syslog, it show below error which 16.04.5 GA kernel
don't have this error:
...
Aug 21 10:25:50 kernel: [0.589408] ACPI Exception: Could not find/resolve
named package element: LNKA (20170831/dspkginit-381)
(repeated 942 lines)
...
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ACPI Exception have been reported here and it seems not related to
screen blur
https://bugzilla.kernel.org/show_bug.cgi?id=198167
** Bug watch added: Linux Kernel Bug Tracker #198167
https://bugzilla.kernel.org/show_bug.cgi?id=198167
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Tested with 18.04.1 Desktop, it wouldn't screen blur. The kernel log are
enclosed.
** Attachment added: "18.04.1 desktop install kernel log (no screen blur)"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1762940/+attachment/5181977/+files/kern.log-18.04.1-desktop-noblur.txt
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Tested on 17.10 server d-i install, it would be screen blur too during
installation, the kernel is 4.13.0.
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Title:
Ubuntu 18.04 d-i
In case 18.04.1 server and destop iso use same kernel of v4.15.0-29 and
the GUI works fine on destop, so the kernel should not be blamed.
In 18.04.1 server installation, if I kill bterm process of below:
/usr/bin/bterm -f /lib/unifont.bgf -l C.UTF-i /lib/debian-installer/menu
Some blur picture wo
With 18.04 UEFI on x86, does passing the kernel parameter
"video=efifb:off" make a difference?
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Title:
Ubuntu 18.04 d-i install scre
Huawei hisilicon team thought it might be caused by hibmc_drm which are
upstream and included in v4.10 kernel for their ARM64 server. It is right.
After disable this module by:
modprobe.blacklist=hibmc_drm
In the grub whiling booting iso. The install screen blur was disappeared.
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Hisilicon team said this driver (hibmc_drm) are only for arm64. For X86
architecture, it need to use default driver for this SM750.
It seems we incorrectly include this model in X86.
Hisicon team have plans to fix in upstream source code which to limit
this modules configure options only to arm64
** Attachment added: "arm64-hisilicon-d05-18.04-blurry-syslog.png"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1762940/+attachment/5183109/+files/arm64-hisilicon-d05-18.04-blurry-syslog.png
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This issue also occurs on arm64. Attached is a screenshot from a
HiSilicon D05 running 18.04.
Why would hibmc_drm be arm64-specific? It is the same PCI device
(19e5:1711), so shouldn't it use the same driver regardless of
architecture?
** Attachment added: "arm64-hisilicon-d05-18.04-blurry-scree
As observed on x86, disabling wayland also avoids the problem on ARM.
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Title:
Ubuntu 18.04 d-i install screen becomes blurry on Huaw
For #37 screen shot and #39. We found this wayland issues for 18.04 and
Huawei x86 server, but it seems no for 18.04.1. In my test, apt-get
install ubuntu-desktop and reboot works fine.
For #37 "Why would hibmc_drm be arm64-specific?", I guess it might
because vendors (sm750 vga) have already prov
For #37-#39
This screen blur issues during install are only happened on Huawei X86
server for 18.04 and 18.04.1 d-i iso. As I know, 18.04 and even 18.04.1
ARM64 iso works fine with this new hibmc-drm module for installation on
Hisilicon D05 board.
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** Attachment removed: "arm64-hisilicon-d05-18.04-blurry-screenshot.png"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1762940/+attachment/5183108/+files/arm64-hisilicon-d05-18.04-blurry-screenshot.png
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This is definitely reproducible on a D05 (arm64) with 18.04 running
wayland, and the symptoms look identical. I re-tested with the 18.04.1
ISO and confirmed.
** Attachment added: "arm64-hisilicon-d05-18.04-blurry-syslog.txt"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1762940/+attachm
Dann,
For the wanland issues, I understood it as comments in #15, that is:
Blur screen for GDM login was caused by wayland, it can be fix by force
to use Xorg in
/etc/gdm3/customer.conf to uncoment WaylandEnable=false
Is this right for your wanland issues on D05?
In 18.04, we fo
@Zhanglei
Could you try these 2 patches?
https://patchwork.freedesktop.org/patch/246810/
https://patchwork.freedesktop.org/patch/246811/
I think these 2 patches will fix the issue that dual GPU install on UEFI
boot mode.
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@Mao: correct, I do not observe screen blur in d-i on D05.
btw, note also bug 1780076
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Title:
Ubuntu 18.04 d-i install screen becom
@AaronMa
Do you have docs for how to compile a new kernel. I can found below doc link
https://help.ubuntu.com/community/Kernel/Compile
But it seems a bit old.
The other difficult is how to get compile config from d-i iso kernel. I
found if I use a kernel from running/installed system to replace d
Hi:
Please refer to this wiki:
https://wiki.ubuntu.com/Kernel/BuildYourOwnKernel
Usually you just need to do the following first:
1, git clone xxx;
2, apply patches;
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** Summary changed:
- Ubuntu 18.04 install screen becomes blur on Huawei server
+ Ubuntu 18.04 d-i install screen becomes blurry on Huawei server in EFI boot
mode
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The daily build is still use 4.15.0-20 kernel. It was expecting of
update and fix this blur problem. http://cdimage.ubuntu.com/ubuntu-
server/bionic/daily/20180625/bionic-server-amd64.iso
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This bug seems related with 4.15.0-20, the test result on UEFI model for
different combination of 16.04, 18.04 and their kernel are below:
18.04(d-i not subiquity) with 4.13 kerel: no screen blur
18.04(d-i not subiquity) with 4.15.22 kerenl: no screen blur
16.04 with 4.15.
In #18, 4.13 should replaced with 4.4.0-116 which used by 16.04.4 ISO.
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Title:
Ubuntu 18.04 d-i install screen becomes blurry on Hua
summary for workaround via kernel parameter to blocker loading:
modprobe.blacklist=hibmc_drm
**prevent load during install
To add "modprobe.blacklist=hibmc_drm" kernel parameter in grub when boot from
d-i iso (press āeā key and then press F10 or ctrl+x ( those key was noticed on
the screen)
** Also affects: linux (Ubuntu Eoan)
Importance: High
Status: Triaged
** Also affects: linux (Ubuntu Disco)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu Disco)
Status: New => Triaged
** Changed in: linux (Ubuntu Disco)
Importance: Undecided => High
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