Ubuntu 18.04 d-i install screen becomes blurry on Huawei server in EFI boot mode

Bug #1762940 reported by Zhanglei Mao on 2018-04-11
This bug affects 1 person
Affects Status Importance Assigned to Milestone
install-package (Ubuntu)
linux (Ubuntu)

Bug Description

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
[ 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)
[ 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

summary: - Ubuntu 1804 install screen becomes blur on Huawei server
+ Ubuntu 18.04 install screen becomes blur on Huawei server

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

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: ???

Changed in linux (Ubuntu):
importance: Undecided → High
tags: added: kernel-key
Changed in linux (Ubuntu Bionic):
status: Incomplete → Triaged
Zhanglei Mao (zhanglei-mao) wrote :

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.

Zhanglei Mao (zhanglei-mao) wrote :

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).

no longer affects: install-package (Ubuntu)
Zhanglei Mao (zhanglei-mao) wrote :

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).

Zhanglei Mao (zhanglei-mao) wrote :

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.

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.

Zhanglei Mao (zhanglei-mao) wrote :

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

tags: added: kernel-da-key
removed: kernel-key
Zhanglei Mao (zhanglei-mao) wrote :

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"

Jeff Lane (bladernr) on 2018-05-18
summary: - 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
Zhanglei Mao (zhanglei-mao) wrote :

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 4.15.20 kernel screen blur
18.04(d-i) with 4.15.20 kernel screen blur
Notes: 4.13 kernel come from 16.04.4 ISO
       4.15.0-22 kernel come from upgrading installed 18.04
       screen blur means blur screen picture for language select page
       Test with customized ISO which was replaced by vmlinux and initrd (new kernel)

Zhanglei Mao (zhanglei-mao) wrote :

In #18, 4.13 should replaced with 4.4.0-116 which used by 16.04.4 ISO.

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