xterm/bash interaction problem. Need to press a key to get xterm to paint pending output

This is new to 20.10.04.1, it was working fine in 20.10.04 -- the upgrade broke it.

The problem is bad in bash but is particularly bad in gdb -tui. In addition to having to press ^L a lot, I now have to press ^l then space to get the final paint to occur.

In bash, if I have a long directory and do "ls -l". The bottom part of the screen shows up white with no text on it. Then, if I press space or Enter, I get the rest of the output plus my command prompt.

this also seems timing related. If the amount of output pending is small, it paints ok, it only seems to happen when there is a lot of pending data to print -- it doesn't print when it is supposed to until the next cycle that causes a flush of the the buffers.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: xterm 372-1ubuntu1
ProcVersionSignature: Ubuntu 5.14.0-1051.58-oem 5.14.21
Uname: Linux 5.14.0-1051-oem x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.driver.nvidia.capabilities.gpu0: Error: path was not a regular file.
.proc.driver.nvidia.capabilities.mig: Error: path was not a regular file.
.proc.driver.nvidia.gpus.0000.01.00.0: Error: path was not a regular file.
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.suspend: suspend hibernate resume
.proc.driver.nvidia.suspend_depth: default modeset uvm
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 510.85.02 Tue Jul 12 16:51:23 UTC 2022
 GCC version: gcc version 11.2.0 (Ubuntu 11.2.0-19ubuntu1)
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: unknown
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sat Sep 24 12:34:19 2022
DistUpgraded: 2022-09-06 10:40:10,134 DEBUG icon theme changed, re-reading
DistroCodename: jammy
DistroVariant: ubuntu
DkmsStatus:
 nvidia/510.85.02, 5.14.0-1051-oem, x86_64: installed
 nvidia/510.85.02, 5.15.0-48-generic, x86_64: installed
GraphicsCard:
 Intel Corporation TigerLake-H GT1 [UHD Graphics] [8086:9a60] (rev 01) (prog-if 00 [VGA controller])
   Subsystem: Lenovo TigerLake-H GT1 [UHD Graphics] [17aa:22e4]
 NVIDIA Corporation GA107GLM [RTX A2000 Mobile] [10de:25b8] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: Lenovo GA107GLM [RTX A2000 Mobile] [17aa:22e4]
InstallationDate: Installed on 2022-02-15 (221 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
MachineType: LENOVO 20Y3005CUS
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.14.0-1051-oem root=UUID=2ca95660-03e1-4d38-8bc3-a3cf793636f2 ro quiet splash vt.handoff=7
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: xterm
UpgradeStatus: Upgraded to jammy on 2022-09-06 (18 days ago)
dmi.bios.date: 08/26/2021
dmi.bios.release: 1.9
dmi.bios.vendor: LENOVO
dmi.bios.version: N40ET27W (1.09 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20Y3005CUS
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.11
dmi.modalias: dmi:bvnLENOVO:bvrN40ET27W(1.09):bd08/26/2021:br1.9:efr1.11:svnLENOVO:pn20Y3005CUS:pvrThinkPadP1Gen4i:rvnLENOVO:rn20Y3005CUS:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20Y3_BU_Think_FM_ThinkPadP1Gen4i:
dmi.product.family: ThinkPad P1 Gen 4i
dmi.product.name: 20Y3005CUS
dmi.product.sku: LENOVO_MT_20Y3_BU_Think_FM_ThinkPad P1 Gen 4i
dmi.product.version: ThinkPad P1 Gen 4i
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.110-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 22.0.5-0ubuntu0.1
version.libgl1-mesa-glx: libgl1-mesa-glx 22.0.5-0ubuntu0.1
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.3-2ubuntu2.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1