Discussion:
[Bug 1762940] [NEW] Ubuntu 1804 install screen becomes blur on Huawei server
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Zhanglei Mao
2018-04-11 07:27:06 UTC
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Public bug reported:

For all(as I know) Huawei servers, the vga adapter are embed in the iBMC
chips. Those server can install from ISO manually for 16.04.4 and screen
display normally. But for 18.04 ( tested both for daily and final
beta)version, the install screen is blur. One of tested server is Huawei
2855 v5, the certification link for 16.04 are
https://certification.ubuntu.com/hardware/201707-25596/.

Below are key difference of dmesg. It seems might related with DRM.

18.04 install screen is blur
dmesg
...
[ 2.039009] fb0: EFI VGA frame buffer device
...
[ 4.178058] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[ 4.191435] [drm] No driver support for vblank timestamp query.
[ 4.209338] checking generic (90000000 300000) vs hw (0 0)
[ 4.209384] fbcon: hibmcdrmfb (fb1) is primary device
[ 4.209385] fbcon: Remapping primary device, fb1, to tty 1-63
...
[ 5.357024] hibmc-drm 0000:07:00.0: fb1: hibmcdrmfb frame buffer device
[ 5.380085] [drm] Initialized hibmc 1.0.0 20160828 for 0000:07:00.0 on minor 0
...
[ 5.636624] vga16fb: initializing
[ 5.636627] vga16fb: mapped to 0x0000000048a7a1d2
[ 5.636630] checking generic (90000000 300000) vs hw (a0000 10000)
[ 5.636676] fb2: VGA16 VGA frame buffer device
...

16.04.4 install screen is fine (no screen blur)
dmesg
...
[ 2.000419] fb0: EFI VGA frame buffer device
....
[ 8.795065] vga16fb: initializing
[ 8.795068] vga16fb: mapped to 0xffff8800000a0000
[ 8.795071] checking generic (98000000 300000) vs hw (a0000 10000)
[ 8.795121] fb1: VGA16 VGA frame buffer device
...

** Affects: install-package (Ubuntu)
Importance: Undecided
Status: New
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Ubuntu 1804 install screen becomes blur on Huawei server

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Zhanglei Mao
2018-04-11 07:31:03 UTC
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Ubuntu 1804 install screen becomes blur on Huawei server

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Zhanglei Mao
2018-04-11 07:35:53 UTC
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** Attachment added: "full demsg and syslog for 18.04 uefi install, 18.04 legacy bios install, 16.04.4 uefi install"
https://bugs.launchpad.net/ubuntu/+source/install-package/+bug/1762940/+attachment/5110296/+files/dmesg_syslog_1804_1604.tar.gz
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Ubuntu 1804 install screen becomes blur on Huawei server

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Zhanglei Mao
2018-04-11 12:39:52 UTC
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** Summary changed:

- Ubuntu 1804 install screen becomes blur on Huawei server
+ Ubuntu 18.04 install screen becomes blur on Huawei server
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Jeff Lane
2018-04-11 14:12:05 UTC
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** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
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Ubuntu 18.04 install screen becomes blur on Huawei server

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Ubuntu Kernel Bot
2018-04-11 14:30:05 UTC
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This bug is missing log files that will aid in diagnosing the problem.
While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:

apport-collect 1762940

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
Status: New => Incomplete

** Tags added: bionic
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Jeff Lane
2018-04-11 14:59:33 UTC
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Hey Mao, Is this visible after install?

In other words can you install 16.04 on the failing system, then add the
4.15 kernel and boot into it?

Once you do that, does the issue appear?

Just to summarize where we are:

16.04, 4.13: No problem
18.04, 4.15: Problem with frame buffer
16.04, 4.15: ???
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Joseph Salisbury
2018-04-11 15:08:57 UTC
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** Changed in: linux (Ubuntu)
Importance: Undecided => High

** Also affects: linux (Ubuntu Bionic)
Importance: High
Status: Incomplete

** Also affects: install-package (Ubuntu Bionic)
Importance: Undecided
Status: New

** Tags added: kernel-key

** Changed in: linux (Ubuntu Bionic)
Status: Incomplete => Triaged
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Zhanglei Mao
2018-04-17 03:22:02 UTC
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The screen also get blur after ubuntu 18.04 beta2 was installed by
legacy bios on Huawei server (VGA card is SM750 which was embedded in
Hi1710 iMBC chips). The ubuntu-destktop was installed by "apt-get
install ubuntu-desktop and init 5 to switch to x.
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Zhanglei Mao
2018-04-17 03:32:18 UTC
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** Attachment added: "sos-report for Ubuntu 18.04 after ubuntu-desktop installed. it also become screen blur after witch to x-window (init 5)."
https://bugs.launchpad.net/ubuntu/+source/install-package/+bug/1762940/+attachment/5118756/+files/sosreport-2288Hv5-20180417044501.tar.xz
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Zhanglei Mao
2018-04-17 03:34:48 UTC
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** Attachment added: "bure screen picture for 18.04 beta2 atfter switch to x-window on Huawei server"
Loading Image...
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Zhanglei Mao
2018-04-17 10:18:54 UTC
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For Xenial ubuntu-deskto on Huawei server testing (UEFI), all kernel 4.4
(default) and 4.13 (hwe) and 4.15 (hwe-edge) works well (no screen
blur).
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Zhanglei Mao
2018-04-17 10:20:06 UTC
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** Attachment added: "screen shoot for xenial (16.04.4) with 4.15 kernel on Huawei server (UEFI)"
Loading Image...
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Brian Murray
2018-04-17 19:48:25 UTC
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** No longer affects: install-package (Ubuntu)
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Zhanglei Mao
2018-04-18 00:10:38 UTC
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** Attachment added: "Test matrix for sceen blur on 16.04.4 with 4.4 4.13 4.15 kernel and 18.04"
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Zhanglei Mao
2018-04-18 00:19:34 UTC
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** Attachment added: "sos report for 16.04.04 with 4.15 kernel tesing (no screen blur after enable x-window)"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1762940/+attachment/5120260/+files/sosreport-2288Hv5uefi16.04.44.15-20180417120113.tar.xz
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Zhanglei Mao
2018-04-20 14:46:19 UTC
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Today, Huawei side did x-window testing 16.04.04 in legacy BIOS model,
all 4.4,4.13(hwe),4.15(hwe-edge which as as 18.04), 4.17rc1 works fine
(no screen blur).
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Zhanglei Mao
2018-04-20 14:51:11 UTC
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** Attachment added: "x-windows test matrix for 16.04.4 with kernel 4.4,4.13,4.15,4.17"
Loading Image...
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Zhanglei Mao
2018-05-07 02:45:23 UTC
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Below image uses the Subiquity and it can be installed successfully. But after install ubuntu-desktop, the login screen would become screen blur after reboot or init 5, but it can be start by startx after init 3 in the terminal.
http://releases.ubuntu.com/18.04/ubuntu-18.04-live-server-amd64.iso.

For ISO of classic Debian installer (d-i) which was download from below, the setup (install) would still become bur and can't continue to finish install by manual which was tested by iMBC(KVM) and virtual CD-ROM.
http://cdimage.ubuntu.com/releases/18.04/release/ubuntu-18.04-server-amd64.iso
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Zhanglei Mao
2018-05-10 09:11:49 UTC
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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
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Jeff Lane
2018-05-18 01:29:28 UTC
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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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Ubuntu 18.04 d-i install screen becomes blurry on Huawei server in EFI
boot mode

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Zhanglei Mao
2018-05-18 01:15:36 UTC
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** Attachment added: "This screen bure on UEFI model for 18.04 classic d-i installer in the first installer screen of language select"
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Zhanglei Mao
2018-05-17 23:06:47 UTC
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For ISO of classic Debian installer (d-i), it would become screen blur
after kernel load and in the first screen of "select a langue"
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Joseph Salisbury
2018-05-17 19:42:51 UTC
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** Tags removed: kernel-key
** Tags added: kernel-da-key
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