On a Dell PowerEdge R210 II server I have the same problem:
- Ubuntu 22.04 server launched from a liveusb: The screen remains black after
loading the kernel
- Ubuntu 22.04 desktop launched from a liveusb: The screen remains black after
loading the kernel
- Update Ubuntu 22.04 server on Ubuntu 21.10 server: The screen is black on
reboot while ok under Ubuntu 21.10. Ssh is ok.
03:03.0 VGA compatible controller: Matrox Electronics Systems Ltd. MGA G200eW
WPCM450 (rev 0a) (prog-if 00 [VGA controller])
DeviceName: Embedded Video
Subsystem: Dell MGA G200eW WPCM450
Flags: bus master, medium devsel, latency 0, IRQ 19, IOMMU group 5
Memory at c4000000 (32-bit, prefetchable) [size=8M]
Memory at c5000000 (32-bit, non-prefetchable) [size=16K]
Memory at c4800000 (32-bit, non-prefetchable) [size=8M]
Expansion ROM at 000c0000 [disabled] [size=128K]
Capabilities: [dc] Power Management version 1
Kernel driver in use: mgag200
Kernel modules: matroxfb_base, mgag200
$ sudo dmesg | grep -i mgag200
[ 3.030128] fb0: switching to mgag200 from EFI VGA
[ 3.046095] mgag200 0000:03:03.0: vgaarb: deactivate vga console
[ 3.049400] [drm] Initialized mgag200 1.0.0 20110418 for 0000:03:03.0 on
minor 0
[ 3.051146] fbcon: mgag200drmfb (fb0) is primary device
[ 3.051975] mgag200 0000:03:03.0: [drm] drm_plane_enable_fb_damage_clips()
not called
[ 3.502482] mgag200 0000:03:03.0: [drm] fb0: mgag200drmfb frame buffer device
$ uname -a
Linux serveur 5.15.0-27-generic #28-Ubuntu SMP Thu Apr 14 04:55:28 UTC 2022
x86_64 x86_64 x86_64 GNU/Linux
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https://bugs.launchpad.net/bugs/1968519
Title:
[Lenovo Ubuntu 22.04 Bug]The Physical VGA displayer shows no signal
(black screen) when install Ubuntu 22.04
Status in linux package in Ubuntu:
Confirmed
Bug description:
Description:
When we install Ubuntu 22.04, the physical VGA displayer show black screen.
It can only show rarely boot logs just for few seconds after kebyboard Enter
key be pressed to install Ubuntu OS, and then the physical VGA displayer keeps
black screen, but the XCC remote KVM monitor can show the boot log and the GUI
interface.
Produce Steps:
1. Connect a physical VGA displayer.
2. Fresh install Ubuntu22.04 on a server that integrated Matrox MGA
G200-family.
3. When the install menu comes out, press keyboard Enter key, the
physical VGA displayer just get the signal for few seconds and then the monitor
go to black screen.
Configuration:
Systems：Lenovo SR590, SR650, SR630 with magag200 as GFX
OS:jammy-live-server20220405-amd64.iso
CPU:Intel(R) Xeon(R) Bronze 3104 CPU @ 1.70GHz
UEFI:3.30 (Build ID: IVE178D)
XCC:1.30 (Build ID: PDL114N)
HDD:1.00TB 7.2K 6Gbps SATA 3.5" HD
Actual results:
The VGA display keep the black screen, during Ubuntu 22.04 installation.
Expected results:
The VGA display is OK when install the Ubuntu 22.04 in a server that
integrated Matrox MGA G200-family video processor
Additional info:
1. The issue can be reproduced 100% in the server that integrated
Matrox MGA G200-family platforms.
2. Both UEFI mode and legacy mode are failed.
3. After we finish installing Ubuntu OS through XCC remote KVM monitor,
and reboot the system, the physical VGA displayer still show nothing after a
few seconds.
4. We did more tests, modified the cmdline of the kernel, add
"nomodeset", the VGA displayer display well.
5. This issue could be found on both Intel and AMD platforms , which
have onboard video chip as mgag200, also called pilot 4.
6. Upstream kernel patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?h=v5.18-rc1&id=147696720eca12ae48d020726208b9a61cdd80bc
(drm/mgag200: Select clock in PLL update functions) probalby resovle the issue
on BIOS legacy mode.
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https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1968519/+subscriptions
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