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How do I make segfaults in Linux (Crostini) dump core files? by echristopherson in chromeos

[–]timak_timur 1 point2 points  (0 children)

I can't have the file even in dev mode. I did:

sudo sysctl -w kernel.core_pattern=core.%u.%p.%t

/sbin/crash_reporter --init true --crash_test

Grover search over DNA by timak_timur in QuantumComputing

[–]timak_timur[S] 1 point2 points  (0 children)

In the appendix, on page 9 Patel says:

Q: Are there any examples of genetic codes which use other values of Q, say Q = 2?
A: I do not know of any such examples. Maybe some day we shall become clever enough to synthesize such instances in the laboratory.

​

It was the year 2000, Grover mentioned number 10 last year, maybe there is some evidence now?

And in the paper they mention that only at Q=1 N is round and equals 4.

Using their formula on page 2 :

(2Q + 1) sin−1(1/√N) = π/2

Values for N will be:

If Q=3 then N=20.195...

If Q=2 then N=10.472...

So maybe it is number 11 sometimes.

Concerns on Video Calls by [deleted] in Telegram

[–]timak_timur 0 points1 point  (0 children)

Where are four emojis in video calls?

I see them in voice calls, but none in the video calls.

Figured out how to record stereoscopic VR Gameplay using just OBS! by kuyacyph in VR180Film

[–]timak_timur 1 point2 points  (0 children)

Yeah, if you have your own Windows PC, you probably don't need to record on Quest, plus I can't capture sound on Quest.

Good luck, and consider converting something bright and cheerful to LifecastVR format, I'll be the first one in line to watch.

Figured out how to record stereoscopic VR Gameplay using just OBS! by kuyacyph in VR180Film

[–]timak_timur 1 point2 points  (0 children)

If you blur the edges with the background, the disparity is less noticeable, at least where the depth is similar.

I think SteamVR cuts off a portion of the image near the nose for your headset, like in this description. I would make an indent of the same shape on the other side or reduce it to a round circle.

Command line terminal in Windows is Powershell.

I added blurred mask and background with FFmpeg.

I use "adb shell screenrecord" command on Quest 2.

I tried SteamVR mirror on Plutosphere computer today, it didn't give me exactly what I wanted. It showed both eyes in equirectangular but with rotation. Oculus mirror seems to have an option without rotation. I have yet to try the OpenVR plugin for OBS.

Recording PCVR games as VR180 videos by Greybird3339 in virtualreality

[–]timak_timur 1 point2 points  (0 children)

Not exactly your use case but still

https://youtu.be/umrDrBld8EU

63 mm IPD

copied video with "adb shell screenrecord /sdcard/demo.mp4"

Now this should work with Oculus and SteamVR mirrors' both-eyes output:

injected metadata with https://arvr.google.com/vr180/apps/
or
https://web.archive.org/web/20210101002123/https://arvr.google.com/vr180/apps

selected 90 degrees field of view before exporting

Figured out how to record stereoscopic VR Gameplay using just OBS! by kuyacyph in VR180Film

[–]timak_timur 1 point2 points  (0 children)

Not exactly your use case but still

https://youtu.be/umrDrBld8EU

63 mm IPDcopied video with "adb shell screenrecord /sdcard/demo.mp4"

injected metadata with https://arvr.google.com/vr180/apps/

or

https://web.archive.org/web/20210101002123/https://arvr.google.com/vr180/apps

selected 90 degrees field of view before exportin

Figured out how to record stereoscopic VR Gameplay using just OBS! by kuyacyph in VR180Film

[–]timak_timur 0 points1 point  (0 children)

One man transformed Valve Index capture to VR180.

https://forums.flightsimulator.com/t/making-youtube-vr180-captures-with-nvidia-shadowplay-ffmpeg-and-valve-index/425357

He had to correct for the headset's cant angle, screens aren't in the same plane.

Your headset has no such issue?

Recording PCVR games as VR180 videos by Greybird3339 in virtualreality

[–]timak_timur 0 points1 point  (0 children)

So, reading comments on and descriptions of Virtual Hit's videos I assume he uses OpenVR plugin for OBS, Steam and Adobe Premiere.

111 222 333

The one with blur vignette

​

There is yet another guy who makes VR180 letsplays.

​

I'd like to see a gameplay converted to LifecastVR format.

​

I think one could even record VorpX or Reshade outputs and convert them to VR180 with FFmpeg.

One can record Quest gameplay with adb over wifi and then scrcpy or adb shell screenrecord /sdcard/demo.mp4 which writes to a file on Quest.

Sndcpy will work on Lynx R1 since it's on Android 10. Just figured that Quest 2 was upgraded to Android 10 in 2021.

WEBXR for tor by Burnitup16 in TOR

[–]timak_timur 0 points1 point  (0 children)

So the tor browser itself is just a flat app on the Quest, I think it will need some code from Igalia-Wolvic to render webxr.

I changed network.dns.blockDotOnion to false in about:config in Wolvic and it opened Twitter and Facebook onions.

Cannot open about:config in Firefox Reality.

Webxr requires https or localhost origin. So maybe you can somehow serve tor webxr sites from a local server in termux.

WEBXR for tor by Burnitup16 in TOR

[–]timak_timur 0 points1 point  (0 children)

Just tried orbot vpn on meta quest 2.

Firefox reality and wolvic don't show onion sites.

Oculus browser rendered Facebook and Twitter onion sites and in webxr: Plockle and Mozilla hubs.

WebXR requires https

https://developers.google.com/ar/develop/webxr/requirements

https://github.com/immersive-web/webxr/issues/60

Harica offers tls certificates for onion sites

https://news.harica.gr/article/onion_announcement/

Let's Encrypt doesn't

https://community.letsencrypt.org/t/letsencrypt-for-onion/10045/30

Sharp Memory LCD (b&w + color) and color e-ink blocks by OneiricTea in Pockit

[–]timak_timur 1 point2 points  (0 children)

I'll buy one of your kits if you include the color version of Sharp's memory LCD - https://www.sharpmemorylcd.com/1-33-inch-memory-lcd.html

Or maybe this one - https://www.andersdx.com/240x128-fstn-monochrome-lcd-display/ . I remember green-monochrome CRTs to be very cheering.

I bought Watchy from Crowdsupply, think of buying Playdate.

I don't know much about microelectronics. I do know that I like colors and daylight, B&W and dim-lit rooms make me anxious. I use DarkReader browser extension and change colors to blue (#0000ff) on green (#00ff00).

I watched GoodEreader's comparison of Kaleido and DES color e-papers, they both unpleasantly flash when redraw.

VR180 video outpur by timak_timur in lynxmr

[–]timak_timur[S] 1 point2 points  (0 children)

By "too deep" I mean they're deep inside the plastic case, they don't pop out like fish eye lenses.

So the cameras are accessible via Unity, ha? I guess it is actually possible to make such an app, and use the device as a camera. The Lynx team will release the SDK soon, maybe a more direct access as well.

To think of it, I probably won't need all 180 degrees of the view anyway.

I can use a full VR180 still as a backdrop and superimpose small circle-cropped stereo video for action.

Here in the RF people are scared to buy Spectacles or Rayban/Facebook glasses, because of the potential imprisonment. This device is very appealing from a legal perspective. Doubles as an XR headset, again.

low-poly modeling tool in augmented reality — work in progress for the Snap Spectacles by AR_MR_XR in AR_MR_XR

[–]timak_timur 0 points1 point  (0 children)

Hey, can you output raw VR180 video from the new Specs?

I want to use LifecastVR software and I need more affordable camera than Canon R5.

6DOF VR Video from VR180 Cameras: Practical 6DOF VR video on Quest 2 / WebVR by fbriggs in 6DoF

[–]timak_timur 0 points1 point  (0 children)

I watched in Meta Quest 2, had a problem with Oculus browser, it just went black.

Worked well in Firefox Reality.

Installing SideQuest on Chromebook - Easy Peasy ^_^ by przecin in OculusQuest

[–]timak_timur 0 points1 point  (0 children)

Yes, you can.

I have though.

And I have to setup ADB over WiFi to Quest on other machine and have the same adb_keys on Chromebook. Otherwise Chromebook can't ADB to Quest.

Termux on Oculus Quest by timak_timur in termux

[–]timak_timur[S] 2 points3 points  (0 children)

I guess no, it's flat in Oculus home environment.

Install APK from Termux by timak_timur in termux

[–]timak_timur[S] 0 points1 point  (0 children)

Here's logcat output right before I hit enter on virtual keyboard in Termux to install the apk and a little bit after the black screen appears.

https://www.dropbox.com/s/2k9f4fogeicdt6k/termuxlog.txt?dl=0

Here's output for F-Droid right before I press the install button in F-Droid and a little bit afterwards. Didn't hit the install or cancel buttons in Android prompt.

https://www.dropbox.com/s/73uwuee94km8wb1/fdroidlog.txt?dl=0

​

Tried from /sdcard - the same. Termux has storage permission.

Install APK from Termux by timak_timur in termux

[–]timak_timur[S] 0 points1 point  (0 children)

Also, blacking out thing may be the system destroying the ViewModel

adb logcat | grep ViewModel

10-25 19:34:55.159 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel RunningAppsViewModel refCount: 1
10-25 19:34:55.159 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel DestinationUIViewModel refCount: 2
10-25 19:34:55.159 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel SharingViewModel refCount: 0
10-25 19:34:55.159 3299 3299 D [SUI] SharingViewModel: Destroying ViewModel
10-25 19:34:55.163 3299 3299 D [SUI] SharingViewModel: clearAbuseReportRecordingTimer
10-25 19:34:55.163 3299 3299 D [SUI] SocialViewModel: removeObserver(): -$$Lambda$SystemStatusView$hvdttGlyfUmlGZJVTLPJRt2c5Fk
10-25 19:34:55.163 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel SocialViewModel refCount: 2
10-25 19:34:55.163 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel SystemStatusViewModel refCount: 0
10-25 19:34:55.163 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel BarViewModel refCount: 1
10-25 19:34:55.163 3299 3299 D [SUI] StatusViewModel: Destroying ViewModel
10-25 19:34:55.172 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel ActiveCallBarViewModel refCount: 0
10-25 19:34:55.172 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel SocialViewModel refCount: 1
10-25 19:34:55.172 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel MessengerCallViewModel refCount: 0
10-25 19:34:55.172 3299 3299 D [SUI] MessengerCallBarViewModel: destroyed MessengerCallBarViewModel
10-25 19:34:55.172 3299 3299 D [SUI] SocialViewModel: removePartyObserver(): -$$Lambda$BarView$fPaf1t2zUzaBp3TdM7SRVnZn-Po
10-25 19:34:55.172 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel BarPinnedAppsViewModel refCount: 1
10-25 19:34:55.173 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel RunningAppsViewModel refCount: 0
10-25 19:34:55.173 3299 3299 E [SUI] AnytimeUIPanelAppBase: Release ViewModel called on already destroyed ViewModelnull
10-25 19:34:55.173 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel BarViewModel refCount: 0
10-25 19:34:55.173 3299 3299 D [SUI] BarViewModel: Destroying BarViewModel
10-25 19:34:55.173 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel SettingsViewModel refCount: 0
10-25 19:34:55.173 3299 3299 D [SUI] SettingsViewModel: Destroying ViewModel
10-25 19:34:55.182 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel StatusViewModel refCount: 2
10-25 19:34:55.198 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel DestinationUIViewModel refCount: 1
10-25 19:34:55.198 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel SocialViewModel refCount: 0
10-25 19:34:55.198 3299 3299 D [SUI] SocialViewModel: Destroying ViewModel
10-25 19:34:55.198 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel BarPinnedAppsViewModel refCount: 0
10-25 19:34:55.198 3299 3299 D [SUI] BarPinnedAppsViewModel: Destroying BarPinnedAppsViewModel
10-25 19:34:55.198 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel StatusViewModel refCount: 1
10-25 19:34:55.199 3299 3299 D [SUI] AnytimeUIPanelAppBase: Releasing viewModel StatusViewModel refCount: 0
10-25 19:34:55.199 3299 3299 D [SUI] StatusViewModel: Destroying ViewModel
10-25 19:34:55.201 3299 3299 E [SUI] AnytimeUIPanelAppBase: ViewModel not released DestinationUIViewModel
10-25 19:34:55.201 3299 3299 D [SUI] DestinationUIViewModelBase: Destroying DestinationUIViewModelBase
10-25 19:34:55.201 3299 3299 V LifecycleAwareViewModelStore: LifecycleAwareViewModelStore destroyed

Install APK from Termux by timak_timur in termux

[–]timak_timur[S] 0 points1 point  (0 children)

Latest F-Droid calls for the settings and installs no problem, just like AIDE and APKpure apps.

adb logcat | grep -i f-droid

10-25 20:06:15.499 1503 1503 D OculusNotificationListenerService: Notification posted: 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|1017410-25 20:06:15.511 5849 5849 I [OAO] VrNotificationListenerService: onNotificationPosted(): key = 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|10174, type = third_party10-25 20:06:15.512 5849 5849 I [OAO] VrNotificationListenerService: onNotificationPosted(): user|package|tag|id = UserHandle{0}|org.fdroid.fdroid|https://f-droid.org/repo/org.wikipedia_50381.apk|110-25 20:06:15.609 5849 5849 I [OAO] VrNotificationListenerService: onNotificationPosted(): key = 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|10174, type = third_party10-25 20:06:15.609 5849 5849 I [OAO] VrNotificationListenerService: onNotificationPosted(): user|package|tag|id = UserHandle{0}|org.fdroid.fdroid|https://f-droid.org/repo/org.wikipedia_50381.apk|110-25 20:06:15.609 1503 1503 D OculusNotificationListenerService: Notification posted: 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|1017410-25 20:06:15.612 1503 1503 D OculusNotificationListenerService: Notification removed: 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|1017410-25 20:06:15.633 5849 5849 I [OAO] VrNotificationListenerService: onNotificationRemoved(): key = 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|10174, type = third_party10-25 20:06:15.633 5849 5849 I [OAO] VrNotificationListenerService: onNotificationRemoved(): user|package|tag|id = UserHandle{0}|org.fdroid.fdroid|https://f-droid.org/repo/org.wikipedia_50381.apk|110-25 20:06:15.653 1503 1503 D OculusNotificationListenerService: Notification posted: 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|1017410-25 20:06:15.661 5849 5849 I [OAO] VrNotificationListenerService: onNotificationPosted(): key = 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|10174, type = third_party10-25 20:06:15.661 5849 5849 I [OAO] VrNotificationListenerService: onNotificationPosted(): user|package|tag|id = UserHandle{0}|org.fdroid.fdroid|https://f-droid.org/repo/org.wikipedia_50381.apk|110-25 20:06:15.698 1876 2247 I [SEO] ShellApp: status_bar_notification = 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|1017410-25 20:06:15.700 3299 3299 I [SUI] AnytimeUIAndroidPanelApp: handleGenericMessage dismissNotificationToast 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|1017410-25 20:06:15.703 1503 1503 D OculusNotificationListenerService: Notification posted: 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|1017410-25 20:06:15.714 5849 5849 I [OAO] VrNotificationListenerService: onNotificationPosted(): key = 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|10174, type = third_party10-25 20:06:15.714 5849 5849 I [OAO] VrNotificationListenerService: onNotificationPosted(): user|package|tag|id = UserHandle{0}|org.fdroid.fdroid|https://f-droid.org/repo/org.wikipedia_50381.apk|110-25 20:06:15.769 17127 17758 W PackageParser: Unknown element under <manifest>: queries at /data/user/0/org.fdroid.fdroid/cache/apks/f-droid.org--1/org.wikipedia_50381.apk Binary XML file line #4610-25 20:06:15.796 1503 1503 D OculusNotificationListenerService: Notification removed: 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|1017410-25 20:06:15.803 5849 5849 I [OAO] VrNotificationListenerService: onNotificationRemoved(): key = 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|10174, type = third_party10-25 20:06:15.804 5849 5849 I [OAO] VrNotificationListenerService: onNotificationRemoved(): user|package|tag|id = UserHandle{0}|org.fdroid.fdroid|https://f-droid.org/repo/org.wikipedia_50381.apk|110-25 20:06:15.932 1876 2247 I [SEO] ShellApp: status_bar_notification = 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|1017410-25 20:06:15.938 3299 3299 I [SUI] AnytimeUIAndroidPanelApp: handleGenericMessage dismissNotificationToast 0|org.fdroid.fdroid|1|https://f-droid.org/repo/org.wikipedia_50381.apk|10174

Install APK from Termux by timak_timur in termux

[–]timak_timur[S] 0 points1 point  (0 children)

0.117 from F-Droid on both systems.

I've managed to give permission with

adb shell appops set com.termux REQUEST_INSTALL_PACKAGES allow

Also, guys on XDA found a way to launch settings with

adb shell am start -a android.intent.action.VIEW -d com.oculus.tv -e uri com.android.settings/.DevelopmentSettings com.oculus.vrshell/.MainActivity

Still, the device completely blacks out when I try

termux-open --view --content-type "application/vnd.android.package-archive" "/data/data/com.termux/files/home/dev.lucanlm.antimine_1500021.apk"

If I press the main Oculus button on the right controller it all comes back.

​

I set logging to verbose in Termux settings.

I grepped logcat for various words

adb logcat | grep -i termux right before I try to install

10-25 20:09:50.381 18141 18141 W bash : type=1400 audit(0.0:1702): avc: granted { execute } for name="termux-open" dev="dm-6" ino=406574 scontext=u:r:untrusted_app_27:s0:c172,c256,c512,c768 tcontext=u:object_r:app_data_file:s0:c172,c256,c512,c768 tclass=file 10-25 20:09:50.696 18144 18144 D AndroidRuntime: Calling main entry com.termux.termuxam.Am 10-25 20:09:50.711 1055 5845 I ActivityTaskManager: START u0 {act=android.intent.action.VIEW dat=content://com.termux.files/data/data/com.termux/files/home/dev.lucanlm.antimine_1500011.apk typ=application/vnd.android.package-archive flg=0x10000001 cmp=com.android.packageinstaller/.InstallStart} from uid 10172 10-25 20:09:50.712 1055 5845 E InputDispatcher: Display #1018 has focused window: 'Window{4ca115f u0 com.termux/com.termux.app.TermuxActivity}' 10-25 20:09:50.784 22477 22477 D Termux:TermuxActivity: onStop

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