This bug was fixed in the package linux-oem-5.6 - 5.6.0-1021.21+20.10.2
---------------
linux-oem-5.6 (5.6.0-1021.21+20.10.2) groovy; urgency=medium
* dkms artifacts may expire from the pool (LP: #1850958)
- [Packaging] autoreconstruct -- manage executable debian files
linux-oem-5.6 (5.6.0-1021.21+20.10.1) groovy; urgency=medium
* dkms artifacts may expire from the pool (LP: #1850958)
- [packaging] handle downloads from the librarian better
* Packaging resync (LP: #1786013)
- [Packaging] update helper scripts
- [Packaging] update update.conf
- update dkms package versions
* Introduce the new NVIDIA 450-server and the 450 UDA series (LP: #1887674)
- [Packaging] NVIDIA -- Add signed modules for 450
* Miscellaneous upstream changes
- usbip: tools: fix build error for multiple definition
- libtraceevent: Fix build with binutils 2.35
- perf cs-etm: Move definition of 'traceid_list' global variable from header
file
linux-oem-5.6 (5.6.0-1021.21) groovy; urgency=medium
* Emtpy entry.
linux-oem-5.6 (5.6.0-1021.21) focal; urgency=medium
* focal/linux-oem-5.6: 5.6.0-1021.21 -proposed tracker (LP: #1889371)
* Fix right speaker of HP laptop (LP: #1889375)
- SAUCE: hda/realtek: Fix right speaker of HP laptop
* blk_update_request error when mount nvme partition (LP: #1872383)
- SAUCE: nvme-pci: prevent SK hynix PC400 from using Write Zeroes command
* cgroup refcount is bogus when cgroup_sk_alloc is disabled (LP: #1886860)
- cgroup: fix cgroup_sk_alloc() for sk_clone_lock()
- cgroup: Fix sock_cgroup_data on big-endian.
* Add support for Atlantic NIC firmware v4 (LP: #1886908)
- net: atlantic: simplify hw_get_fw_version() usage
- net: atlantic: align return value of ver_match function with function name
- net: atlantic: add support for FW 4.x
* Restart the machine successfully after suspend (LP: #1888375)
- SAUCE: iommu/vt-d: Skip TE disabling on quirky gfx dedicated iommu
- iommu/vt-d: Don't apply gfx quirks to untrusted devices
* Wakeup the system by touching the touchpad (LP: #1888331)
- gpio: gpiolib: Allow GPIO IRQs to lazy disable
- HID: i2c-hid: Enable wakeup capability from Suspend-to-Idle
* soc/amd/renoir: detect dmic from acpi table (LP: #1887734)
- ASoC: amd: add logic to check dmic hardware runtime
- ASoC: amd: add ACPI dependency check
- ASoC: amd: fixed kernel warnings
* [SRU][PATCH 0/1][oem-5.6] fix amd RENOIR screen backlight issue.
(LP: #1886785)
- Revert "drm/amd/display: disable dcn20 abm feature for bring up"
* Enable Quectel EG95 LTE modem [2c7c:0195] (LP: #1886744)
- net: usb: qmi_wwan: add support for Quectel EG95 LTE modem
- USB: serial: option: add Quectel EG95 LTE modem
* soc/amd/renoir: change the module name to make it work with ucm3
(LP: #1888166)
- AsoC: amd: add missing snd- module prefix to the acp3x-rn driver kernel
module
- remove a kernel module since its name is changed
* System stops responding while entering S3 with SD card installed
(LP: #1880519)
- xhci: Return if xHCI doesn't support LPM
- xhci: Poll for U0 after disabling USB2 LPM
* [SRU][F/OEM-5.6] add a new OLED panel support for brightness control
(LP: #1887909)
- drm/dp: Lenovo X13 Yoga OLED panel brightness fix
-- Seth Forshee <seth.fors...@canonical.com> Mon, 24 Aug 2020 13:18:25
-0500
** Changed in: linux-oem-5.6 (Ubuntu)
Status: Incomplete => Fix Released
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https://bugs.launchpad.net/bugs/1886785
Title:
[SRU][PATCH 0/1][oem-5.6] fix amd RENOIR screen backlight issue.
Status in HWE Next:
New
Status in linux-oem-5.6 package in Ubuntu:
Fix Released
Status in linux-oem-5.6 source package in Focal:
Fix Released
Bug description:
[Impact]
On AMD RENOIR gpu, after S3 backlight brightness can not be changed.
[Fix]
Pevious patch prevent loading iram, then dmcu can not work.
Remove unused check to load iram right. Then backlight works well.
[Test]
Verified on hardware, after 10 times of S3, backlight can be changed by
hotkey.
[Regression Potential]
Low
Upstream fix, backports is minimal.
RENOIR is only supported on oem-5.6, no focal patch.
Harry Wentland (1):
Revert "drm/amd/display: disable dcn20 abm feature for bring up"
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
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