Multiple "drivers/gpu/drm/i915/display/intel_display_power.c" kernel
logs appeared in journal when I shake the mouse to wake up the screen.

kernel: ------------[ cut here ]------------
kernel: i915 0000:00:02.0: [drm] Display power well on
kernel: WARNING: CPU: 3 PID: 10338 at
drivers/gpu/drm/i915/display/intel_display_power.c:1186
hsw_enable_pc8+0xb15/0xbd0 [i915]
kernel: Modules linked in: xt_connmark xt_mark xt_addrtype wireguard
libchacha20poly1305 chacha_x86_64 poly1305_x86_64 curve25519_x86_64
libcurve25519_generic libchacha ip6_udp_tunnel udp_tunnel snd_seq_dummy
snd_hrtimer snd_seq snd_seq_device zram lz4hc_compress lz4_compress
xt_LOG nf_log_syslog xt_multiport xt_owner xt_comment xt_tcpmss
xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_tcpudp
nft_compat nf_tables libcrc32c binfmt_misc snd_hda_codec_hdmi
intel_rapl_msr intel_rapl_common snd_hda_codec_realtek
x86_pkg_temp_thermal i915 intel_powerclamp snd_hda_codec_generic
snd_hda_scodec_component coretemp snd_hda_intel kvm_intel
snd_intel_dspcfg drm_buddy snd_intel_sdw_acpi kvm snd_hda_codec
drm_display_helper irqbypass usblp cec mei_pxp rc_core mei_hdcp ttm
drm_kms_helper mei_me rapl intel_cstate mei intel_uncore i2c_algo_bit
snd_hda_core snd_hwdep snd_pcm snd_timer snd toshiba_acpi sparse_keymap
industrialio sg soundcore evdev rfkill vga16fb ac button vgastate
toshiba_haps wmi_bmof tcp_bbr sch_fq
kernel: parport_pc ppdev lp parport drm efi_pstore configfs nfnetlink
ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 crc32c_generic
dm_crypt dm_mod hid_generic usbhid hid sr_mod sd_mod cdrom
crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel
sha512_ssse3 ahci sha256_ssse3 libahci xhci_pci sha1_ssse3 iTCO_wdt
libata xhci_hcd aesni_intel intel_pmc_bxt ehci_pci gf128mul
iTCO_vendor_support ehci_hcd crypto_simd cryptd watchdog psmouse r8169
scsi_mod usbcore serio_raw realtek mdio_devres libphy scsi_common
lpc_ich usb_common video battery wmi
kernel: CPU: 3 UID: 0 PID: 10338 Comm: kworker/3:3 Tainted: G W
6.12.90+deb13.1-amd64 #1 Debian 6.12.90-2
kernel: Tainted: [W]=WARN
kernel: Hardware name: [REDACTED], BIOS Version [REDACTED]
kernel: Workqueue: pm pm_runtime_work
kernel: RIP: 0010:hsw_enable_pc8+0xb15/0xbd0 [i915]
kernel: Code: 5e 10 00 48 8b 7d 08 4c 8b 67 50 4d 85 e4 75 03 4c 8b 27
e8 bd 83 e1 e2 4c 89 e2 48 c7 c7 50 4b 33 c1 48 89 c6 e8 4b 70 5c e2
<0f> 0b e9 cb f5 ff ff 80 bd e3 17 00 00 00 0f 84 2e 5e 10 00 48 8b
kernel: RSP: 0018:ffffd201a140bce0 EFLAGS: 00010286
kernel: RAX: 0000000000000000 RBX: ffff898018c58618 RCX:
0000000000000027
kernel: RDX: ffff8983113a1788 RSI: 0000000000000001 RDI:
ffff8983113a1780
kernel: RBP: ffff898018c58000 R08: 0000000000000000 R09:
ffffd201a140bb60
kernel: R10: ffffffffa5299ed0 R11: 0000000000000003 R12:
ffff8980014d8e80
kernel: R13: ffff898018c582e0 R14: ffff898018c58618 R15:
ffff898018c58000
kernel: FS: 0000000000000000(0000) GS:ffff898311380000(0000)
knlGS:0000000000000000
kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: CR2: 00007fd3ce247dc8 CR3: 00000001c878e004 CR4:
00000000003726f0
kernel: Call Trace:
kernel: <TASK>
kernel: intel_runtime_suspend+0xdc/0x230 [i915]
kernel: pci_pm_runtime_suspend+0x6a/0x1a0
kernel: ? __pfx_pci_pm_runtime_suspend+0x10/0x10
kernel: __rpm_callback+0x44/0x170
kernel: ? __pfx_pci_pm_runtime_suspend+0x10/0x10
kernel: rpm_callback+0x55/0x60
kernel: ? __pfx_pci_pm_runtime_suspend+0x10/0x10
kernel: rpm_suspend+0xe6/0x5f0
kernel: ? finish_task_switch.isra.0+0x97/0x2c0
kernel: pm_runtime_work+0x98/0xb0
kernel: process_one_work+0x177/0x330
kernel: worker_thread+0x191/0x2f0
kernel: ? __pfx_worker_thread+0x10/0x10
kernel: kthread+0xd2/0x100
kernel: ? __pfx_kthread+0x10/0x10
kernel: ret_from_fork+0x34/0x50
kernel: ? __pfx_kthread+0x10/0x10
kernel: ret_from_fork_asm+0x1a/0x30
kernel: </TASK>
kernel: ---[ end trace 0000000000000000 ]---


kernel: ------------[ cut here ]------------
kernel: i915 0000:00:02.0: [drm] Display power well on
kernel: WARNING: CPU: 2 PID: 10670 at
drivers/gpu/drm/i915/display/intel_display_power.c:1186
hsw_enable_pc8+0xb15/0xbd0 [i915]
kernel: Modules linked in: xt_connmark xt_mark xt_addrtype wireguard
libchacha20poly1305 chacha_x86_64 poly1305_x86_64 curve25519_x86_64
libcurve25519_generic libchacha ip6_udp_tunnel udp_tunnel snd_seq_dummy
snd_hrtimer snd_seq snd_seq_device zram lz4hc_compress lz4_compress
xt_LOG nf_log_syslog xt_multiport xt_owner xt_comment xt_tcpmss
xt_conntrack nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_tcpudp
nft_compat nf_tables libcrc32c binfmt_misc snd_hda_codec_hdmi
intel_rapl_msr intel_rapl_common snd_hda_codec_realtek
x86_pkg_temp_thermal i915 intel_powerclamp snd_hda_codec_generic
snd_hda_scodec_component coretemp snd_hda_intel kvm_intel
snd_intel_dspcfg drm_buddy snd_intel_sdw_acpi kvm snd_hda_codec
drm_display_helper irqbypass usblp cec mei_pxp rc_core mei_hdcp ttm
drm_kms_helper mei_me rapl intel_cstate mei intel_uncore i2c_algo_bit
snd_hda_core snd_hwdep snd_pcm snd_timer snd toshiba_acpi sparse_keymap
industrialio sg soundcore evdev rfkill vga16fb ac button vgastate
toshiba_haps wmi_bmof tcp_bbr sch_fq
kernel: parport_pc ppdev lp parport drm efi_pstore configfs nfnetlink
ip_tables x_tables autofs4 ext4 crc16 mbcache jbd2 crc32c_generic
dm_crypt dm_mod hid_generic usbhid hid sr_mod sd_mod cdrom
crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel
sha512_ssse3 ahci sha256_ssse3 libahci xhci_pci sha1_ssse3 iTCO_wdt
libata xhci_hcd aesni_intel intel_pmc_bxt ehci_pci gf128mul
iTCO_vendor_support ehci_hcd crypto_simd cryptd watchdog psmouse r8169
scsi_mod usbcore serio_raw realtek mdio_devres libphy scsi_common
lpc_ich usb_common video battery wmi
kernel: CPU: 2 UID: 0 PID: 10670 Comm: kworker/2:3 Tainted: G W
6.12.90+deb13.1-amd64 #1 Debian 6.12.90-2
kernel: Tainted: [W]=WARN
kernel: Hardware name: [REDACTED], BIOS Version [REDACTED]
kernel: Workqueue: pm pm_runtime_work
kernel: RIP: 0010:hsw_enable_pc8+0xb15/0xbd0 [i915]
kernel: Code: 5e 10 00 48 8b 7d 08 4c 8b 67 50 4d 85 e4 75 03 4c 8b 27
e8 bd 83 e1 e2 4c 89 e2 48 c7 c7 50 4b 33 c1 48 89 c6 e8 4b 70 5c e2
<0f> 0b e9 cb f5 ff ff 80 bd e3 17 00 00 00 0f 84 2e 5e 10 00 48 8b
kernel: RSP: 0018:ffffd2018bce3ce0 EFLAGS: 00010286
kernel: RAX: 0000000000000000 RBX: ffff898018c58618 RCX:
0000000000000027
kernel: RDX: ffff898311321788 RSI: 0000000000000001 RDI:
ffff898311321780
kernel: RBP: ffff898018c58000 R08: 0000000000000000 R09:
ffffd2018bce3b60
kernel: R10: ffffffffa529ad40 R11: 0000000000000003 R12:
ffff8980014d8e80
kernel: R13: ffff898018c582e0 R14: ffff898018c58618 R15:
ffff898018c58000
kernel: FS: 0000000000000000(0000) GS:ffff898311300000(0000)
knlGS:0000000000000000
kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kernel: CR2: 000055c4e38ab388 CR3: 000000033c222006 CR4:
00000000003726f0
kernel: Call Trace:
kernel: <TASK>
kernel: intel_runtime_suspend+0xdc/0x230 [i915]
kernel: pci_pm_runtime_suspend+0x6a/0x1a0
kernel: ? __pfx_pci_pm_runtime_suspend+0x10/0x10
kernel: __rpm_callback+0x44/0x170
kernel: ? __pfx_pci_pm_runtime_suspend+0x10/0x10
kernel: rpm_callback+0x55/0x60
kernel: ? __pfx_pci_pm_runtime_suspend+0x10/0x10
kernel: rpm_suspend+0xe6/0x5f0
kernel: ? finish_task_switch.isra.0+0x97/0x2c0
kernel: pm_runtime_work+0x98/0xb0
kernel: process_one_work+0x177/0x330
kernel: worker_thread+0x191/0x2f0
kernel: ? __pfx_worker_thread+0x10/0x10
kernel: kthread+0xd2/0x100
kernel: ? __pfx_kthread+0x10/0x10
kernel: ret_from_fork+0x34/0x50
kernel: ? __pfx_kthread+0x10/0x10
kernel: ret_from_fork_asm+0x1a/0x30
kernel: </TASK>
kernel: ---[ end trace 0000000000000000 ]---

and so on.

Hi,

We would need more context information on those. Can you followup to
this bug with the information gathered on HW when filling 'reportbug
kernel' please? (I understand you redacted above some information).

Is this a regression from a previous 6.12.y kernel? Which was the last
one which worked? If it worked before, can you please bisect the
issue? Doing so would involve compiling a couple of kernels. Assume
6.12.88-1 was okay and so 6.12.90-2 was the first Debian kernel which
exposes the issue, then proceed as follows:

    git clone --single-branch -b linux-6.12.y https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
    cd linux-stable
    git checkout v6.12.88
    cp /boot/config-$(uname -r) .config
    yes '' | make localmodconfig
    make savedefconfig
    mv defconfig arch/x86/configs/my_defconfig

    # test 6.12.88 to ensure this is "good"
    make my_defconfig
    make -j $(nproc) bindeb-pkg
    ... install the resulting .deb package and confirm problem does not exist

    # test 6.12.90 to ensure this is "bad"
    git checkout v6.12.90
    make my_defconfig
    make -j $(nproc) bindeb-pkg
    ... install the resulting .deb package and confirm problem exists

With that confirmed, the bisection can start:

    git bisect start
    git bisect good v6.12.88
    git bisect bad v6.12.90

In each bisection step git checks out a state between the oldest
known-bad and the newest known-good commit. In each step test using:

    make my_defconfig
    make -j $(nproc) bindeb-pkg
    ... install, verify if problem exists

and if the problem is hit run:

    git bisect bad

and if the problem doesn't trigger run:

    git bisect good

. Please pay attention to always select the just built kernel for
booting, it won't always be the default kernel picked up by grub.

Iterate until git announces to have identified the first bad commit.

Then provide the output of

    git bisect log

In the course of the bisection you might have to uninstall previous
kernels again to not exhaust the disk space in /boot. Also in the end
uninstall all self-built kernels again.

Again the 6.12.88 above is hypotetical, would need to be the last one
working for you.

Regards,
Salvatore