Please feel free to open a new bug if you're still encounter this issue
with newer releases.
** Changed in: linux (Ubuntu)
Status: Triaged => Won't Fix
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https://bugs.launchpad.net/bugs/1627408
Title:
Severe graphics regression with mainline kernel v4.7.5 on Broadwell
5500U
Status in linux package in Ubuntu:
Won't Fix
Status in linux source package in Yakkety:
Won't Fix
Bug description:
I would like to report a severe graphics regression, involving
frequent rainbow-glitching and flickering on a x64 computer with Intel
Broadwell 5500U processor w/ integrated graphics. This issue was not
present on kernel v4.7.4, which I will continue to use. Due to
unfortunate issues with Broadwell integrated graphics support,
virtually every kernel build in the 4.8 release chain as well as the
newest v4.7.5 kernel have this issue. Dramatic multicolored patches
and glitched areas appear frequently when using my computer with these
kernels installed. The behavior is very similar to that of the
Broadwell graphics issues present in kernel version 4.6.x. Please fix
this issue, I don't understand why NEWER kernels are actually causing
significant graphical problems with older hardware.
I am running Ubuntu 16.04.1 LTS on an HP Spectre x360 4102dx with an Intel
Broadwell 5500U core i7 processor with integrated intel Broadwell GT2 graphics
Here is my system configuration:
H/W path Device Class Description
====================================================
system HP Spectre x360 Convertible
(N5R94UA#ABA)
/0 bus 802D
/0/0 memory 64KiB BIOS
/0/10 memory 32KiB L1 cache
/0/11 memory 32KiB L1 cache
/0/12 memory 256KiB L2 cache
/0/13 memory 4MiB L3 cache
/0/14 processor Intel(R) Core(TM) i7-5500U CPU @
2.40GHz
/0/16 memory 8GiB System Memory
/0/16/0 memory 4GiB Row of chips Synchronous 1600
MHz (0.6 ns)
/0/16/1 memory 4GiB Row of chips Synchronous 1600
MHz (0.6 ns)
/0/100 bridge Broadwell-U Host Bridge -OPI
/0/100/2 display Broadwell-U Integrated Graphics
/0/100/3 multimedia Broadwell-U Audio Controller
/0/100/14 bus Wildcat Point-LP USB xHCI Controller
/0/100/14/0 usb2 bus xHCI Host Controller
/0/100/14/1 usb1 bus xHCI Host Controller
/0/100/14/1/1 input USB Receiver
/0/100/14/1/3 multimedia HP Truevision Full HD
/0/100/14/1/4 input Touchscreen
/0/100/14/1/5 input ITE Device(8350)
/0/100/14/1/7 communication Bluetooth wireless interface
/0/100/16 communication Wildcat Point-LP MEI Controller #1
/0/100/1b multimedia Wildcat Point-LP High Definition
Audio Controller
/0/100/1c bridge Wildcat Point-LP PCI Express Root
Port #2
/0/100/1c/0 generic RTS5227 PCI Express Card Reader
/0/100/1c.2 bridge Wildcat Point-LP PCI Express Root
Port #3
/0/100/1c.2/0 wlo1 network Wireless 7265
/0/100/1f bridge Wildcat Point-LP LPC Controller
/0/100/1f.2 storage Wildcat Point-LP SATA Controller
[AHCI Mode]
/0/100/1f.3 bus Wildcat Point-LP SMBus Controller
/0/1 scsi0 storage
/0/1/0.0.0 /dev/sda disk 512GB SAMSUNG MZNTE512
/0/1/0.0.0/1 /dev/sda1 volume 449MiB Windows NTFS volume
/0/1/0.0.0/2 /dev/sda2 volume 98MiB Windows FAT volume
/0/1/0.0.0/3 /dev/sda3 volume 15MiB reserved partition
/0/1/0.0.0/4 /dev/sda4 volume 15EiB Windows FAT volume
/0/1/0.0.0/5 /dev/sda5 volume 807MiB Windows NTFS volume
/0/1/0.0.0/6 /dev/sda6 volume 97GiB Windows NTFS volume
/0/1/0.0.0/7 /dev/sda7 volume 89GiB EXT4 volume
/0/1/0.0.0/8 /dev/sda8 volume 8098MiB Linux swap volume
/1 power PK03056XL
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