[Kernel-packages] [Bug 1863880] Re: Another Dell AIO backlight issue
This bug was fixed in the package linux - 5.3.0-46.38
---
linux (5.3.0-46.38) eoan; urgency=medium
* eoan/linux: 5.3.0-43.36 -proposed tracker (LP: #1867301)
* Fix AMD Stoney Ridge screen flickering under 4K resolution (LP: #1864005)
- iommu/amd: Disable IOMMU on Stoney Ridge systems
* Allow BPF tracing under lockdown (LP: #1868626)
- Revert "UBUNTU: SAUCE: (efi-lockdown) Lock down kprobes"
- Revert "bpf: Restrict bpf when kernel lockdown is in confidentiality mode"
* Missing wireless network interface after kernel 5.3.0-43 upgrade with eoan
(LP: #1868442)
- iwlwifi: mvm: Do not require PHY_SKU NVM section for 3168 devices
* Packaging resync (LP: #1786013)
- [Packaging] resync getabis
- [Packaging] update helper scripts
* iSCSI-target: Deleting a LUN hangs in the kernel (LP: #1862682)
- scsi: Revert "target/core: Inline transport_lun_remove_cmd()"
* Stop using get_scalar_status command in Dell AIO uart backlight driver
(LP: #1865402)
- SAUCE: platform/x86: dell-uart-backlight: add get_display_mode command
* Eoan update: upstream stable patchset 2020-03-11 (LP: #1867051)
- Revert "drm/sun4i: dsi: Change the start delay calculation"
- ovl: fix lseek overflow on 32bit
- kernel/module: Fix memleak in module_add_modinfo_attrs()
- media: iguanair: fix endpoint sanity check
- ocfs2: fix oops when writing cloned file
- x86/cpu: Update cached HLE state on write to TSX_CTRL_CPUID_CLEAR
- udf: Allow writing to 'Rewritable' partitions
- printk: fix exclusive_console replaying
- iwlwifi: mvm: fix NVM check for 3168 devices
- sparc32: fix struct ipc64_perm type definition
- cls_rsvp: fix rsvp_policy
- gtp: use __GFP_NOWARN to avoid memalloc warning
- l2tp: Allow duplicate session creation with UDP
- net: hsr: fix possible NULL deref in hsr_handle_frame()
- net_sched: fix an OOB access in cls_tcindex
- net: stmmac: Delete txtimer in suspend()
- bnxt_en: Fix TC queue mapping.
- tcp: clear tp->total_retrans in tcp_disconnect()
- tcp: clear tp->delivered in tcp_disconnect()
- tcp: clear tp->data_segs{in|out} in tcp_disconnect()
- tcp: clear tp->segs_{in|out} in tcp_disconnect()
- rxrpc: Fix use-after-free in rxrpc_put_local()
- rxrpc: Fix insufficient receive notification generation
- rxrpc: Fix missing active use pinning of rxrpc_local object
- rxrpc: Fix NULL pointer deref due to call->conn being cleared on
disconnect
- media: uvcvideo: Avoid cyclic entity chains due to malformed USB
descriptors
- mfd: dln2: More sanity checking for endpoints
- ipc/msg.c: consolidate all xxxctl_down() functions
- tracing: Fix sched switch start/stop refcount racy updates
- rcu: Avoid data-race in rcu_gp_fqs_check_wake()
- brcmfmac: Fix memory leak in brcmf_usbdev_qinit
- usb: typec: tcpci: mask event interrupts when remove driver
- usb: gadget: legacy: set max_speed to super-speed
- usb: gadget: f_ncm: Use atomic_t to track in-flight request
- usb: gadget: f_ecm: Use atomic_t to track in-flight request
- ALSA: usb-audio: Fix endianess in descriptor validation
- ALSA: dummy: Fix PCM format loop in proc output
- mm/memory_hotplug: fix remove_memory() lockdep splat
- mm: move_pages: report the number of non-attempted pages
- media/v4l2-core: set pages dirty upon releasing DMA buffers
- media: v4l2-core: compat: ignore native command codes
- media: v4l2-rect.h: fix v4l2_rect_map_inside() top/left adjustments
- lib/test_kasan.c: fix memory leak in kmalloc_oob_krealloc_more()
- irqdomain: Fix a memory leak in irq_domain_push_irq()
- platform/x86: intel_scu_ipc: Fix interrupt support
- ALSA: hda: Add Clevo W65_67SB the power_save blacklist
- KVM: arm64: Correct PSTATE on exception entry
- KVM: arm/arm64: Correct CPSR on exception entry
- KVM: arm/arm64: Correct AArch32 SPSR on exception entry
- KVM: arm64: Only sign-extend MMIO up to register width
- MIPS: fix indentation of the 'RELOCS' message
- MIPS: boot: fix typo in 'vmlinux.lzma.its' target
- s390/mm: fix dynamic pagetable upgrade for hugetlbfs
- powerpc/xmon: don't access ASDR in VMs
- powerpc/pseries: Advance pfn if section is not present in
lmb_is_removable()
- smb3: fix signing verification of large reads
- PCI: tegra: Fix return value check of pm_runtime_get_sync()
- mmc: spi: Toggle SPI polarity, do not hardcode it
- ACPI: video: Do not export a non working backlight interface on MSI
MS-7721
boards
- ACPI / battery: Deal with design or full capacity being reported as -1
- ACPI / battery: Use design-cap for capacity calculations if full-cap is
not
available
- ACPI / battery: Deal better with neither design nor full capacity not
being
reported
- alarmtimer: Unregister wakeup source when module get fails
- ubifs: don't trigger
[Kernel-packages] [Bug 1863880] Re: Another Dell AIO backlight issue
This bug was fixed in the package linux-oem-osp1 - 5.0.0-1043.48 --- linux-oem-osp1 (5.0.0-1043.48) bionic; urgency=medium * bionic/linux-oem-osp1: 5.0.0-1043.48 -proposed tracker (LP: #1867111) * All PS/2 ports on PS/2 Serial add-in bracket are not working after S3 (LP: #1866734) - SAUCE: Input: i8042 - Fix the selftest retry logic * r8152 init may take up to 40 seconds at initialization with Dell WD19/WD19DC during hotplug (LP: #1864284) - UBUNTU SAUCE: r8151: check disconnect status after long sleep * Miscellaneous Ubuntu changes - [Config] Bump the GCC version -- Timo Aaltonen Thu, 12 Mar 2020 11:14:40 +0200 ** Changed in: linux-oem-osp1 (Ubuntu) Status: Invalid => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1863880 Title: Another Dell AIO backlight issue Status in linux package in Ubuntu: Fix Released Status in linux-oem-osp1 package in Ubuntu: Fix Released Status in linux source package in Bionic: Confirmed Status in linux-oem-osp1 source package in Bionic: Fix Released Status in linux source package in Eoan: Fix Committed Status in linux source package in Focal: Fix Released Bug description: [Impact] The scalar which control the backlight sometimes doesn't respond the first command, so driver can't determinate whether this scalar is in charge of the backlight. [Fix] Move the retry block not only to read the response, but also includes write command, so that it re-send the command, too. [Test] Verified on the buggy Dell AIO, it passes 30 times and should be more reliable. [Regression Potential] Low, there is no code flow change, just move the retry block to include both write and read command. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1863880/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1863880] Re: Another Dell AIO backlight issue
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- eoan' to 'verification-done-eoan'. If the problem still exists, change the tag 'verification-needed-eoan' to 'verification-failed-eoan'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-eoan -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1863880 Title: Another Dell AIO backlight issue Status in linux package in Ubuntu: Fix Released Status in linux-oem-osp1 package in Ubuntu: Invalid Status in linux source package in Bionic: Confirmed Status in linux-oem-osp1 source package in Bionic: Fix Released Status in linux source package in Eoan: Fix Committed Status in linux source package in Focal: Fix Released Bug description: [Impact] The scalar which control the backlight sometimes doesn't respond the first command, so driver can't determinate whether this scalar is in charge of the backlight. [Fix] Move the retry block not only to read the response, but also includes write command, so that it re-send the command, too. [Test] Verified on the buggy Dell AIO, it passes 30 times and should be more reliable. [Regression Potential] Low, there is no code flow change, just move the retry block to include both write and read command. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1863880/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1863880] Re: Another Dell AIO backlight issue
This bug was fixed in the package linux - 5.4.0-18.22 --- linux (5.4.0-18.22) focal; urgency=medium * focal/linux: 5.4.0-18.22 -proposed tracker (LP: #1866488) * Packaging resync (LP: #1786013) - [Packaging] resync getabis - [Packaging] update helper scripts * Add sysfs attribute to show remapped NVMe (LP: #1863621) - SAUCE: ata: ahci: Add sysfs attribute to show remapped NVMe device count * [20.04 FEAT] Compression improvements in Linux kernel (LP: #1830208) - lib/zlib: add s390 hardware support for kernel zlib_deflate - s390/boot: rename HEAP_SIZE due to name collision - lib/zlib: add s390 hardware support for kernel zlib_inflate - s390/boot: add dfltcc= kernel command line parameter - lib/zlib: add zlib_deflate_dfltcc_enabled() function - btrfs: use larger zlib buffer for s390 hardware compression - [Config] Introducing s390x specific kernel config option CONFIG_ZLIB_DFLTCC * [UBUNTU 20.04] s390x/pci: increase CONFIG_PCI_NR_FUNCTIONS to 512 in kernel config (LP: #1866056) - [Config] Increase CONFIG_PCI_NR_FUNCTIONS from 64 to 512 starting with focal on s390x * CONFIG_IP_MROUTE_MULTIPLE_TABLES is not set (LP: #1865332) - [Config] CONFIG_IP_MROUTE_MULTIPLE_TABLES=y * Dell XPS 13 9300 Intel 1650S wifi [34f0:1651] fails to load firmware (LP: #1865962) - iwlwifi: remove IWL_DEVICE_22560/IWL_DEVICE_FAMILY_22560 - iwlwifi: 22000: fix some indentation - iwlwifi: pcie: rx: use rxq queue_size instead of constant - iwlwifi: allocate more receive buffers for HE devices - iwlwifi: remove some outdated iwl22000 configurations - iwlwifi: assume the driver_data is a trans_cfg, but allow full cfg * [FOCAL][REGRESSION] Intel Gen 9 brightness cannot be controlled (LP: #1861521) - Revert "USUNTU: SAUCE: drm/i915: Force DPCD backlight mode on Dell Precision 4K sku" - Revert "UBUNTU: SAUCE: drm/i915: Force DPCD backlight mode on X1 Extreme 2nd Gen 4K AMOLED panel" - SAUCE: drm/dp: Introduce EDID-based quirks - SAUCE: drm/i915: Force DPCD backlight mode on X1 Extreme 2nd Gen 4K AMOLED panel - SAUCE: drm/i915: Force DPCD backlight mode for some Dell CML 2020 panels * [20.04 FEAT] Enable proper kprobes on ftrace support (LP: #1865858) - s390/ftrace: save traced function caller - s390: support KPROBES_ON_FTRACE * alsa/sof: load different firmware on different platforms (LP: #1857409) - ASoC: SOF: Intel: hda: use fallback for firmware name - ASoC: Intel: acpi-match: split CNL tables in three - ASoC: SOF: Intel: Fix CFL and CML FW nocodec binary names. * [UBUNTU 20.04] Enable CONFIG_NET_SWITCHDEV in kernel config for s390x starting with focal (LP: #1865452) - [Config] Enable CONFIG_NET_SWITCHDEV in kernel config for s390x starting with focal * Focal update: v5.4.24 upstream stable release (LP: #1866333) - io_uring: grab ->fs as part of async offload - EDAC: skx_common: downgrade message importance on missing PCI device - net: dsa: b53: Ensure the default VID is untagged - net: fib_rules: Correctly set table field when table number exceeds 8 bits - net: macb: ensure interface is not suspended on at91rm9200 - net: mscc: fix in frame extraction - net: phy: restore mdio regs in the iproc mdio driver - net: sched: correct flower port blocking - net/tls: Fix to avoid gettig invalid tls record - nfc: pn544: Fix occasional HW initialization failure - qede: Fix race between rdma destroy workqueue and link change event - Revert "net: dev: introduce support for sch BYPASS for lockless qdisc" - udp: rehash on disconnect - sctp: move the format error check out of __sctp_sf_do_9_1_abort - bnxt_en: Improve device shutdown method. - bnxt_en: Issue PCIe FLR in kdump kernel to cleanup pending DMAs. - bonding: add missing netdev_update_lockdep_key() - net: export netdev_next_lower_dev_rcu() - bonding: fix lockdep warning in bond_get_stats() - ipv6: Fix route replacement with dev-only route - ipv6: Fix nlmsg_flags when splitting a multipath route - ipmi:ssif: Handle a possible NULL pointer reference - drm/msm: Set dma maximum segment size for mdss - sched/core: Don't skip remote tick for idle CPUs - timers/nohz: Update NOHZ load in remote tick - sched/fair: Prevent unlimited runtime on throttled group - dax: pass NOWAIT flag to iomap_apply - mac80211: consider more elements in parsing CRC - cfg80211: check wiphy driver existence for drvinfo report - s390/zcrypt: fix card and queue total counter wrap - qmi_wwan: re-add DW5821e pre-production variant - qmi_wwan: unconditionally reject 2 ep interfaces - NFSv4: Fix races between open and dentry revalidation - perf/smmuv3: Use platform_get_irq_optional() for wired interrupt - perf/x86/intel: Add Elkhart Lake support - perf/x86/cstate: Add Tremont
[Kernel-packages] [Bug 1863880] Re: Another Dell AIO backlight issue
This bug is awaiting verification that the kernel in -proposed solves the problem. Please test the kernel and update this bug with the results. If the problem is solved, change the tag 'verification-needed- focal' to 'verification-done-focal'. If the problem still exists, change the tag 'verification-needed-focal' to 'verification-failed-focal'. If verification is not done by 5 working days from today, this fix will be dropped from the source code, and this bug will be closed. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you! ** Tags added: verification-needed-focal -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1863880 Title: Another Dell AIO backlight issue Status in linux package in Ubuntu: Incomplete Status in linux-oem-osp1 package in Ubuntu: Invalid Status in linux source package in Bionic: Confirmed Status in linux-oem-osp1 source package in Bionic: Fix Released Status in linux source package in Eoan: Fix Committed Status in linux source package in Focal: Incomplete Bug description: [Impact] The scalar which control the backlight sometimes doesn't respond the first command, so driver can't determinate whether this scalar is in charge of the backlight. [Fix] Move the retry block not only to read the response, but also includes write command, so that it re-send the command, too. [Test] Verified on the buggy Dell AIO, it passes 30 times and should be more reliable. [Regression Potential] Low, there is no code flow change, just move the retry block to include both write and read command. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1863880/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1863880] Re: Another Dell AIO backlight issue
The patch "UBUNTU: SAUCE: platform/x86: dell-uart-backlight: move retry block" has been removed from bionic/linux. ** Changed in: linux (Ubuntu Bionic) Status: Fix Committed => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1863880 Title: Another Dell AIO backlight issue Status in linux package in Ubuntu: Incomplete Status in linux-oem-osp1 package in Ubuntu: Invalid Status in linux source package in Bionic: Confirmed Status in linux-oem-osp1 source package in Bionic: Fix Released Status in linux source package in Eoan: Fix Committed Status in linux source package in Focal: Incomplete Bug description: [Impact] The scalar which control the backlight sometimes doesn't respond the first command, so driver can't determinate whether this scalar is in charge of the backlight. [Fix] Move the retry block not only to read the response, but also includes write command, so that it re-send the command, too. [Test] Verified on the buggy Dell AIO, it passes 30 times and should be more reliable. [Regression Potential] Low, there is no code flow change, just move the retry block to include both write and read command. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1863880/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1863880] Re: Another Dell AIO backlight issue
** Changed in: linux (Ubuntu Bionic) Status: Incomplete => Fix Committed ** Changed in: linux (Ubuntu Eoan) Status: New => Fix Committed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1863880 Title: Another Dell AIO backlight issue Status in linux package in Ubuntu: Incomplete Status in linux-oem-osp1 package in Ubuntu: Invalid Status in linux source package in Bionic: Fix Committed Status in linux-oem-osp1 source package in Bionic: Fix Released Status in linux source package in Eoan: Fix Committed Status in linux source package in Focal: Incomplete Bug description: [Impact] The scalar which control the backlight sometimes doesn't respond the first command, so driver can't determinate whether this scalar is in charge of the backlight. [Fix] Move the retry block not only to read the response, but also includes write command, so that it re-send the command, too. [Test] Verified on the buggy Dell AIO, it passes 30 times and should be more reliable. [Regression Potential] Low, there is no code flow change, just move the retry block to include both write and read command. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1863880/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1863880] Re: Another Dell AIO backlight issue
** Changed in: linux-oem-osp1 (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1863880 Title: Another Dell AIO backlight issue Status in linux package in Ubuntu: Incomplete Status in linux-oem-osp1 package in Ubuntu: Invalid Status in linux source package in Bionic: Incomplete Status in linux-oem-osp1 source package in Bionic: Fix Released Status in linux source package in Eoan: New Status in linux source package in Focal: Incomplete Bug description: [Impact] The scalar which control the backlight sometimes doesn't respond the first command, so driver can't determinate whether this scalar is in charge of the backlight. [Fix] Move the retry block not only to read the response, but also includes write command, so that it re-send the command, too. [Test] Verified on the buggy Dell AIO, it passes 30 times and should be more reliable. [Regression Potential] Low, there is no code flow change, just move the retry block to include both write and read command. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1863880/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1863880] Re: Another Dell AIO backlight issue
This bug was fixed in the package linux-oem-osp1 - 5.0.0-1040.45 --- linux-oem-osp1 (5.0.0-1040.45) bionic; urgency=medium * bionic/linux-oem-osp1: 5.0.0-1040.45 -proposed tracker (LP: #1863996) * Another Dell AIO backlight issue (LP: #1863880) - SAUCE: platform/x86: dell-uart-backlight: move retry block -- Timo Aaltonen Thu, 20 Feb 2020 09:23:58 +0200 ** Changed in: linux-oem-osp1 (Ubuntu Bionic) Status: Fix Committed => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1863880 Title: Another Dell AIO backlight issue Status in linux package in Ubuntu: Incomplete Status in linux-oem-osp1 package in Ubuntu: New Status in linux source package in Bionic: Incomplete Status in linux-oem-osp1 source package in Bionic: Fix Released Status in linux source package in Eoan: New Status in linux source package in Focal: Incomplete Bug description: [Impact] The scalar which control the backlight sometimes doesn't respond the first command, so driver can't determinate whether this scalar is in charge of the backlight. [Fix] Move the retry block not only to read the response, but also includes write command, so that it re-send the command, too. [Test] Verified on the buggy Dell AIO, it passes 30 times and should be more reliable. [Regression Potential] Low, there is no code flow change, just move the retry block to include both write and read command. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1863880/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1863880] Re: Another Dell AIO backlight issue
** Changed in: linux-oem-osp1 (Ubuntu Bionic) Status: New => Fix Committed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1863880 Title: Another Dell AIO backlight issue Status in linux package in Ubuntu: Incomplete Status in linux-oem-osp1 package in Ubuntu: New Status in linux source package in Bionic: Incomplete Status in linux-oem-osp1 source package in Bionic: Fix Committed Status in linux source package in Eoan: New Status in linux source package in Focal: Incomplete Bug description: [Impact] The scalar which control the backlight sometimes doesn't respond the first command, so driver can't determinate whether this scalar is in charge of the backlight. [Fix] Move the retry block not only to read the response, but also includes write command, so that it re-send the command, too. [Test] Verified on the buggy Dell AIO, it passes 30 times and should be more reliable. [Regression Potential] Low, there is no code flow change, just move the retry block to include both write and read command. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1863880/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1863880] Re: Another Dell AIO backlight issue
** No longer affects: linux-oem-osp1 (Ubuntu Focal) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1863880 Title: Another Dell AIO backlight issue Status in linux package in Ubuntu: Incomplete Status in linux-oem-osp1 package in Ubuntu: New Status in linux source package in Bionic: Incomplete Status in linux-oem-osp1 source package in Bionic: New Status in linux source package in Eoan: New Status in linux source package in Focal: Incomplete Bug description: [Impact] The scalar which control the backlight sometimes doesn't respond the first command, so driver can't determinate whether this scalar is in charge of the backlight. [Fix] Move the retry block not only to read the response, but also includes write command, so that it re-send the command, too. [Test] Verified on the buggy Dell AIO, it passes 30 times and should be more reliable. [Regression Potential] Low, there is no code flow change, just move the retry block to include both write and read command. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1863880/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1863880] Re: Another Dell AIO backlight issue
** Also affects: linux (Ubuntu Bionic) Importance: Undecided Status: New ** Also affects: linux-oem-osp1 (Ubuntu Bionic) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Focal) Importance: Undecided Status: New ** Also affects: linux-oem-osp1 (Ubuntu Focal) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Eoan) Importance: Undecided Status: New ** Also affects: linux-oem-osp1 (Ubuntu Eoan) Importance: Undecided Status: New ** No longer affects: linux-oem-osp1 (Ubuntu Eoan) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1863880 Title: Another Dell AIO backlight issue Status in linux package in Ubuntu: Incomplete Status in linux-oem-osp1 package in Ubuntu: New Status in linux source package in Bionic: Incomplete Status in linux-oem-osp1 source package in Bionic: New Status in linux source package in Eoan: New Status in linux source package in Focal: Incomplete Status in linux-oem-osp1 source package in Focal: New Bug description: [Impact] The scalar which control the backlight sometimes doesn't respond the first command, so driver can't determinate whether this scalar is in charge of the backlight. [Fix] Move the retry block not only to read the response, but also includes write command, so that it re-send the command, too. [Test] Verified on the buggy Dell AIO, it passes 30 times and should be more reliable. [Regression Potential] Low, there is no code flow change, just move the retry block to include both write and read command. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1863880/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
