So, one of my theories was some kind of memory corruption or other software fault. However, while the laptop display was showing the artifacts, I took screenshots and the artifacts aren't visible in the screenshots, and I connected an external HDMI display and the artifacts aren't visible there either. I think the finger of blame is starting to point at either the display or some interconnect.
-- Russell Senior [email protected] On Tue, Aug 27, 2024 at 10:00 PM Russell Senior <[email protected]> wrote: > > I have a 2017 era HP spectre x360 laptop running ubuntu 22.04 that has > just recently (within the last few weeks) started showing some video > artifacts. I took some pictures with my cell phone camera, linked > below: > > https://photos.app.goo.gl/icvx3iDijaGHKz3G8 > > The artifacts survive reboot, but I seem to be able to recover by > draining the battery (booting into CMOS and unplugging and letting the > power drain until it shuts off). Here's my lscpi: > > 00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core > Processor Host Bridge/DRAM Registers (rev 02) > 00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620 (rev 02) > 00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 > v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 02) > 00:13.0 Non-VGA unclassified device: Intel Corporation Sunrise > Point-LP Integrated Sensor Hub (rev 21) > 00:14.0 USB controller: Intel Corporation Sunrise Point-LP USB 3.0 > xHCI Controller (rev 21) > 00:14.2 Signal processing controller: Intel Corporation Sunrise > Point-LP Thermal subsystem (rev 21) > 00:15.0 Signal processing controller: Intel Corporation Sunrise > Point-LP Serial IO I2C Controller #0 (rev 21) > 00:16.0 Communication controller: Intel Corporation Sunrise Point-LP > CSME HECI #1 (rev 21) > 00:1c.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express > Root Port #2 (rev f1) > 00:1c.4 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express > Root Port #5 (rev f1) > 00:1d.0 PCI bridge: Intel Corporation Sunrise Point-LP PCI Express > Root Port #9 (rev f1) > 00:1f.0 ISA bridge: Intel Corporation Sunrise Point LPC > Controller/eSPI Controller (rev 21) > 00:1f.2 Memory controller: Intel Corporation Sunrise Point-LP PMC (rev 21) > 00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21) > 00:1f.4 SMBus: Intel Corporation Sunrise Point-LP SMBus (rev 21) > 01:00.0 Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78) > 02:00.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C > step) [Alpine Ridge 4C 2016] (rev 02) > 03:00.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C > step) [Alpine Ridge 4C 2016] (rev 02) > 03:01.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C > step) [Alpine Ridge 4C 2016] (rev 02) > 03:02.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C > step) [Alpine Ridge 4C 2016] (rev 02) > 03:04.0 PCI bridge: Intel Corporation JHL6540 Thunderbolt 3 Bridge (C > step) [Alpine Ridge 4C 2016] (rev 02) > 38:00.0 USB controller: Intel Corporation JHL6540 Thunderbolt 3 USB > Controller (C step) [Alpine Ridge 4C 2016] (rev 02) > 6d:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd > NVMe SSD Controller SM961/PM961/SM963 > > Nothing obvious in dmesg. > > Has anyone seen anything like this? > > -- > Russell Senior > [email protected]
