This bug was fixed in the package linux - 4.4.0-161.189
---------------
linux (4.4.0-161.189) xenial; urgency=medium
* xenial/linux: 4.4.0-161.189 -proposed tracker (LP: #1841544)
* flock not mediated by 'k' (LP: 1658219)
- Revert "UBUNTU: SAUCE: apparmor: flock mediation is not being, enforced on
cache check"
* Packaging resync (LP: #1786013)
- [Packaging] resync getabis
linux (4.4.0-160.188) xenial; urgency=medium
* xenial/linux: 4.4.0-160.188 -proposed tracker (LP: #1840021)
* Packaging resync (LP: #1786013)
- [Packaging] update helper scripts
* EeePC 1005px laptop backlight is off after system boot up (LP: #1837117)
- platform/x86: asus-wmi: Only Tell EC the OS will handle display hotkeys
from
asus_nb_wmi
* CVE-2019-10638
- [Config] CONFIG_TEST_HASH=n
- siphash: add cryptographically secure PRF
- inet: switch IP ID generator to siphash
* Stacked onexec transitions fail when under NO NEW PRIVS restrictions
(LP: #1839037)
- SAUCE: apparmor: fix nnp subset check failure, when stacking
* AppArmor onexec transition causes WARN kernel stack trace (LP: #1838627)
- SAUCE: apparmor: fix audit failures when performing profile transitions
* flock not mediated by 'k' (LP: 1658219) // Ubuntu 16.04: read access
incorrectly implies 'm' rule (LP: 1838090)
- SAUCE: apparmor: flock mediation is not being, enforced on cache check
* bcache: bch_allocator_thread(): hung task timeout (LP: #1784665) // Tight
timeout for bcache removal causes spurious failures (LP: #1796292)
- SAUCE: bcache: fix deadlock in bcache_allocator
* bcache: bch_allocator_thread(): hung task timeout (LP: #1784665)
- bcache: improve bcache_reboot()
- bcache: add journal statistic
- bcache: fix high CPU occupancy during journal
- bcache: fix incorrect sysfs output value of strip size
- bcache: fix error return value in memory shrink
- bcache: fix using of loop variable in memory shrink
- bcache: Fix indentation
- bcache: Add __printf annotation to __bch_check_keys()
- bcache: Annotate switch fall-through
- bcache: Fix kernel-doc warnings
- bcache: Remove an unused variable
- bcache: Suppress more warnings about set-but-not-used variables
- bcache: Reduce the number of sparse complaints about lock imbalances
- bcache: Move couple of functions to sysfs.c
* CVE-2019-3900
- vhost: introduce vhost_vq_avail_empty()
- vhost_net: tx batching
- vhost_net: do not stall on zerocopy depletion
- vhost-net: set packet weight of tx polling to 2 * vq size
- vhost_net: use packet weight for rx handler, too
- vhost_net: introduce vhost_exceeds_weight()
- vhost: introduce vhost_exceeds_weight()
- vhost_net: fix possible infinite loop
- vhost: scsi: add weight support
* Xenial: ZFS deadlock in shrinker path with xattrs (LP: #1839521)
- SAUCE: (noup) Update zfs to 0.6.5.6-0ubuntu28
* CVE-2019-13648
- powerpc/tm: Fix oops on sigreturn on systems without TM
* CVE-2018-20856
- block: blk_init_allocated_queue() set q->fq as NULL in the fail case
* CVE-2019-14283
- floppy: fix out-of-bounds read in copy_buffer
* CVE-2019-14284
- floppy: fix div-by-zero in setup_format_params
* Xenial update: 4.4.186 upstream stable release (LP: #1838467)
- Input: elantech - enable middle button support on 2 ThinkPads
- samples, bpf: fix to change the buffer size for read()
- mac80211: mesh: fix RCU warning
- dt-bindings: can: mcp251x: add mcp25625 support
- can: mcp251x: add support for mcp25625
- Input: imx_keypad - make sure keyboard can always wake up system
- ARM: davinci: da850-evm: call regulator_has_full_constraints()
- ARM: davinci: da8xx: specify dma_coherent_mask for lcdc
- md: fix for divide error in status_resync
- bnx2x: Check if transceiver implements DDM before access
- udf: Fix incorrect final NOT_ALLOCATED (hole) extent length
- x86/ptrace: Fix possible spectre-v1 in ptrace_get_debugreg()
- x86/tls: Fix possible spectre-v1 in do_get_thread_area()
- mwifiex: Abort at too short BSS descriptor element
- fscrypt: don't set policy for a dead directory
- mwifiex: Don't abort on small, spec-compliant vendor IEs
- USB: serial: ftdi_sio: add ID for isodebug v1
- USB: serial: option: add support for GosunCn ME3630 RNDIS mode
- usb: gadget: ether: Fix race between gether_disconnect and rx_submit
- usb: renesas_usbhs: add a workaround for a race condition of workqueue
- staging: comedi: dt282x: fix a null pointer deref on interrupt
- staging: comedi: amplc_pci230: fix null pointer deref on interrupt
- carl9170: fix misuse of device driver API
- VMCI: Fix integer overflow in VMCI handle arrays
- MIPS: Remove superfluous check for __linux__
- e1000e: start network tx queue only when link is up
- perf/core: Fix perf_sample_regs_user() mm check
- ARM: omap2: remove incorrect __init annotation
- be2net: fix link failure after ethtool offline test
- ppp: mppe: Add softdep to arc4
- sis900: fix TX completion
- dm verity: use message limit for data block corruption message
- kvm: x86: avoid warning on repeated KVM_SET_TSS_ADDR
- ARC: hide unused function unw_hdr_alloc
- s390: fix stfle zero padding
- s390/qdio: (re-)initialize tiqdio list entries
- s390/qdio: don't touch the dsci in tiqdio_add_input_queues()
- KVM: x86: protect KVM_CREATE_PIT/KVM_CREATE_PIT2 with kvm->lock
- Linux 4.4.186
-- Stefan Bader <stefan.ba...@canonical.com> Tue, 27 Aug 2019 09:49:19
+0200
** Changed in: linux (Ubuntu Xenial)
Status: Fix Committed => Fix Released
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-20856
** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2019-10638
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https://bugs.launchpad.net/bugs/1837117
Title:
EeePC 1005px laptop backlight is off after system boot up
Status in linux package in Ubuntu:
Fix Released
Status in linux source package in Xenial:
Fix Released
Status in linux source package in Disco:
Fix Released
Status in linux source package in Eoan:
Fix Released
Bug description:
== SRU Justification ==
Commit 78f3ac76d9e5 ("platform/x86: asus-wmi: Tell the EC the OS will
handle the display off hotkey") causes the backlight to be permanently off
on various EeePC laptop models using the eeepc-wmi driver (Asus EeePC
1015BX, Asus EeePC 1025C).
== Fix ==
* 1dd93f87 (platform/x86: asus-wmi: Only Tell EC the OS will handle
display hotkeys from asus_nb_wmi)
This patch addes a .wmi_backlight_set_devstate quirk for specific
models to make asus_wmi_set_devstate(ASUS_WMI_DEVID_BACKLIGHT, 2, NULL)
conditional.
Only X/D contain the commit that introduce this issue (78f3ac76), this
patch can be cherry-picked into D.
For X, it needs some content adjustment to add quirks only to those
models that exist in Xenial tree.
== Test ==
Test kernels could be found here:
https://people.canonical.com/~phlin/kernel/lp-1837117-eeepc/
Bug reporter has verified that this fix works as expected on X.
== Regression Potential ==
Low, quirks limited to specific ASUS laptops and by far there is no
further change to this in upstream kernel.
== Original Bug Report ==
After kernel update the backlight on my Asus eeepc 1005px becomes off during
boot up. I can see the login screen if I point light to the screen. The
backlight is not reacting on brightness adjustment keys. The backlight starts
working only if I close and open the laptop lid.
I have tried to:
* echo 10 > /sys/class/backlight/acpi_video0/brightness
* echo 125 > /sys/class/backlight/intel_backlight/brightness
* vbetool dpms on
* pass "acpi_backlight=vendor" kernel parameter
* install gdm instead of lightdm
* create /usr/share/X11/xorg.conf.d/80-backlight.conf with content
recommended in Kernel/Debugging/Backlight Wiki article
with no luck.
The backlight works fine if I pass "acpi_osi=" kernel parameter, the
brightness is adjusted by keys, but the applet does not react to
adjustments.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-145-generic 4.4.0-145.171
ProcVersionSignature: Ubuntu 4.4.0-145.171-generic 4.4.176
Uname: Linux 4.4.0-145-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
CurrentDesktop: XFCE
Date: Thu Jul 18 22:30:44 2019
InstallationDate: Installed on 2019-02-17 (151 days ago)
InstallationMedia: Xubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160719)
SourcePackage: linux-signed
UpgradeStatus: No upgrade log present (probably fresh install)
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