which desktop environment? probably caused by the new mesa, which now defaults to the Iris driver on newer Intel GPU's, you can verify this by running firefox like:
"dri_driver=i965 firefox" from a terminal ** Package changed: firefox (Ubuntu) => mesa (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1864274 Title: crunchy pixels Status in mesa package in Ubuntu: Incomplete Bug description: Hello, after upgrading firefox (and many other packages) on focal today, I've got some video artifacts in firefox. When typing in text boxes and text fields, the new character is drawn very slowly, pixel-by-pixel, and isn't complete until the cursor has moved on. When larger portions of the screen are updated, it looks a lot like the entire window is being run through a video codec or you can see parts of the video memory from other processes. (But it looks more deliberate and predictable than either of these descriptions.) So far Firefox is the only application I've found that is affected. urxvt, libreoffice, xfontsel, glxgears all seem to work as expected. I did get cairo package update today, but the changelog is just: pango1.0 (1.44.7-1ubuntu2) focal; urgency=medium * No-change rebuild with fixed binutils on arm64. -- Matthias Klose <d...@ubuntu.com> Sat, 08 Feb 2020 11:15:23 +0000 And an xorg update: xorg (1:7.7+19ubuntu14) focal; urgency=medium * No-change rebuild with fixed binutils on arm64. -- Matthias Klose <d...@ubuntu.com> Sat, 08 Feb 2020 11:21:28 +0000 So I don't believe these are involved. 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 620 (rev 07) Thanks ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: firefox 73.0.1+build1-0ubuntu1 ProcVersionSignature: Ubuntu 5.4.0-14.17-generic 5.4.18 Uname: Linux 5.4.0-14-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair AddonCompatCheckDisabled: False AlsaVersion: Advanced Linux Sound Architecture Driver Version k5.4.0-14-generic. ApportVersion: 2.20.11-0ubuntu16 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: sarnold 3296 F.... pulseaudio /dev/snd/controlC0: sarnold 3296 F.... pulseaudio BuildID: 20200217142647 Card0.Amixer.info: Card hw:0 'PCH'/'HDA Intel PCH at 0x2fe1028000 irq 144' Mixer name : 'Realtek ALC285' Components : 'HDA:10ec0285,17aa225c,00100002 HDA:8086280b,80860101,00100000' Controls : 53 Simple ctrls : 15 Card1.Amixer.info: Card hw:1 'Audio'/'Generic ThinkPad Dock USB Audio at usb-0000:00:14.0-4.2.4, high speed' Mixer name : 'USB Mixer' Components : 'USB17ef:306f' Controls : 9 Simple ctrls : 4 Channel: Unavailable Date: Sat Feb 22 05:41:10 2020 ForcedLayersAccel: False IncompatibleExtensions: Pentadactyl - pentadac...@dactyl.googlecode.com English (GB) Language Pack - langpack-en...@firefox.mozilla.org English (South Africa) Language Pack - langpack-en...@firefox.mozilla.org Default - {972ce4c6-7e08-4474-a285-3208198ce6fd} IpRoute: default via 192.168.0.1 dev enp0s31f6 proto dhcp metric 100 10.23.231.0/24 dev lxdbr0 proto kernel scope link src 10.23.231.1 192.168.0.0/24 dev enp0s31f6 proto kernel scope link src 192.168.0.34 metric 100 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 linkdown MostRecentCrashID: bp-ea952d4d-f25a-4ced-893c-8cabb2160112 PrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/firefox/omni.ja:greprefs.js:737 PrefSources: prefs.js ProcEnviron: TERM=rxvt-unicode-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash Profiles: Profile0 (Default) - LastVersion=73.0.1/20200217142647 (In use) RunningIncompatibleAddons: True SourcePackage: firefox UpgradeStatus: Upgraded to focal on 2020-01-24 (28 days ago) dmi.bios.date: 11/25/2019 dmi.bios.vendor: LENOVO dmi.bios.version: N23ET69W (1.44 ) dmi.board.asset.tag: Not Available dmi.board.name: 20KHCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0J40709 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN23ET69W(1.44):bd11/25/2019:svnLENOVO:pn20KHCTO1WW:pvrThinkPadX1Carbon6th:rvnLENOVO:rn20KHCTO1WW:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad X1 Carbon 6th dmi.product.name: 20KHCTO1WW dmi.product.sku: LENOVO_MT_20KH_BU_Think_FM_ThinkPad X1 Carbon 6th dmi.product.version: ThinkPad X1 Carbon 6th dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/1864274/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
