It sounds like one of the LCD layers is wiggling loose and causing problems. I bet if you pressed the screen with your finger the artifacts would change. could be that the internal LVDS connection is loose or the screen itself needs to be replaced.
-Ben On Tuesday, August 27th, 2024 at 11:49 PM, Russell Senior <[email protected]> wrote: > I don't have much control over what's on the screen in BIOS, but it > does seem to still be there. The lower lines look dimmer than the > first several. > > One other symptom is that there is a kind of ghosting. I can move my > mouse pointer, and a "ghost" of my pointer will remain for a few > seconds where it had been. Same thing with whole terminal windows. > That suggests it isn't just some dodgy connection. And then, sometimes > it will just get better and be fine. WUT? > > -- > Russell > > On Tue, Aug 27, 2024 at 11:19 PM Ben Koenig [email protected] wrote: > > > It looks like there is something wrong with the display. Do you see the > > same thing in the BIOS menu screen? > > > > -Ben > > > > On Tuesday, August 27th, 2024 at 10:26 PM, Russell Senior > > [email protected] wrote: > > > > > 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]
