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Date:   Sun, 16 Jul 2023 18:44:43 +0700
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To:     Jani Nikula <jani.nikula@linux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@intel.com>,
        Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>,
        David Airlie <airlied@gmail.com>,
        Daniel Vetter <daniel@ffwll.ch>,
        Maik Broemme <mbroemme@libmpq.org>,
        Johannes <johannesnitschke@yahoo.com>
Cc:     Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux Regressions <regressions@lists.linux.dev>,
        Linux Intel GPU <intel-gfx@lists.freedesktop.org>,
        Linux DRI Development <dri-devel@lists.freedesktop.org>,
        Linux Framebuffer <linux-fbdev@vger.kernel.org>,
        Linux Stable <stable@vger.kernel.org>
From:   Bagas Sanjaya <bagasdotme@gmail.com>
Subject: =?UTF-8?Q?Fwd=3a_Framebuffer-Display_issue=2e_=28Intel=c2=ae_Iris?=
 =?UTF-8?B?wq4gWGUp?=
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Hi,

I notice a regression report on Bugzilla [1]. Quoting from it:

> Hello I have been having problems for some time now with displaying any linux distribution with the new kernal. The only thing that can fix it are older kernals.
> 
> I can't describe it very well, so I'm attaching some pictures, but it's like whenever anything happens on the screen, it pushes the upper left half up from the bottom. But it only goes to a certain extent, after that it just shakes around and jumps back a bit. Also, for example, the firefox icon is not where it is displayed, but where it should be (I tried it with touch).
> 
> I think it has something to do with the framebuffer, because an usb stick with just the arch iso show the same issue in the tty.
> 
> The hardware is a Huawei Matebook E 2022.
> Cpu: Intel® Core™ i5-1130G7
> Graphics: Intel® Iris® Xe
> 
> Example under Manjaro that worked was with the 
> linux-lqx-6.1.0.lqx2-1-x86_64.pkg.tar.zst kernal
> 22-Dec-2022 14:44           154507169
> from https://repo.blacksky3.com/x86_64/linux-lqx/old/
> 
> Kernals above that Version dosent work, Example with 6.1.1-lqx1-linux-lqx:
> `
> $inxi -F
> System:
> Host: Johannes Kernel: 6.1.1-lqx1-linux-lqx arch: x86_64 bits: 64
> Desktop: GNOME v: 43.5 Distro: Manjaro Linux
> Machine:
> Type: Detachable System: HUAWEI product: DRC-WXX v: M1010
> serial:
> Mobo: HUAWEI model: DRC-WXX-PCB v: M1010 serial:
> UEFI: HUAWEI v: 1.30 date: 06/29/2022
> Battery:
> ID-1: BAT1 charge: 27.8 Wh (66.0%) condition: 42.1/42.1 Wh (100.0%)
> volts: 11.9 min: 11.5
> CPU:
> Info: quad core model: 11th Gen Intel Core i5-1130G7 bits: 64 type: MT MCP
> cache: L2: 5 MiB
> Speed (MHz): avg: 1395 min/max: 400/1801 cores: 1: 897 2: 1046 3: 962
> 4: 1801 5: 1801 6: 1801 7: 1801 8: 1052
> Graphics:
> Device-1: Intel Tiger Lake-UP4 GT2 [Iris Xe Graphics] driver: i915 v: kernel
> Display: wayland server: X.org v: 1.21.1.8 with: Xwayland v: 23.1.1
> compositor: gnome-shell driver: gpu: i915 resolution: 2560x1600~60Hz
> API: OpenGL v: 4.6 Mesa 23.0.3 renderer: Mesa Intel Xe Graphics (TGL GT2)
> Audio:
> Device-1: Intel driver: N/A
> Device-2: Intel Tiger Lake-LP Smart Sound Audio
> driver: sof-audio-pci-intel-tgl
> API: ALSA v: k6.1.1-lqx1-linux-lqx status: kernel-api
> Server-1: PulseAudio v: 16.1 status: active
> Network:
> Device-1: Intel Wi-Fi 6 AX201 driver: iwlwifi
> IF: wlp0s20f3 state: up mac: f4:b3:01:b7:c6:6d
> Bluetooth:
> Device-1: Intel AX201 Bluetooth driver: btusb type: USB
> Report: rfkill ID: hci0 state: up address: see --recommends
> Drives:
> Local Storage: total: 476.94 GiB used: 9.65 GiB (2.0%)
> ID-1: /dev/nvme0n1 model: PCIe-8 SSD 512GB size: 476.94 GiB
> Partition:
> ID-1: / size: 468.09 GiB used: 9.65 GiB (2.1%) fs: ext4 dev: /dev/nvme0n1p2
> ID-2: /boot/efi size: 299.4 MiB used: 288 KiB (0.1%) fs: vfat
> dev: /dev/nvme0n1p1
> Swap:
> Alert: No swap data was found.
> Sensors:
> System Temperatures: cpu: 35.0 C mobo: N/A
> Fan Speeds (RPM): N/A
> Info:
> Processes: 241 Uptime: 0m Memory: available: 15.42 GiB used: 1.18 GiB (7.6%)
> Shell: Zsh inxi: 3.3.27
> 
> `
> 
> Distros I testet:
> Ubuntu 20.04.2 results in Blackscreen/poweroff
> Fedora 38 (Bug as I mentiond)
> Manjaro (Bug as I mentiond)
> It all works fine when you start from grub2 in Rescue mode.
> 
> That all is very new to me, so I am sorry if I did something wrong. 
> I mean, I reported that bug first at the wrong place.. Anyway
> 
> Best regreds Johannes

See Bugzilla for the full thread and attached pictures that demonstrate
this regression.

Anyway, I'm adding it to regzbot:

#regzbot introduced: v6.1..v6.4 https://bugzilla.kernel.org/show_bug.cgi?id=217666
#regzbot title: screen shakes on Intel® Iris® Xe

(also Cc'ing stable list because it also occurs on v6.1.y, but not in
v6.1 mainline).

Thanks.

-- 
An old man doll... just what I always wanted! - Clara