[DNG] Screen flickering
Recently the screen of a Dell Latitude 7400 laptop I have (which is running Devuan) started flickering. I tried to deactivate/reactivate it (got a second monitor), unplug it to let it run w/o charger, change the display's frequency... you name it. I also tried to reboot on the previous 4.19.0-14 kernel, to no avail. Could it be due to some update or it necessarily hardware fault-related? What caught my eye is that the 1st time I tried rebooting it was doing that on the GRUB screen. Since then, not anymore then. Are there modules to look for/disable? What else is there to try? Bernard (Beer) Rosset https://rosset.net/ ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] Screen flickering
Something I guess is important that I forgot to add: The flicker started happening after the screen went black during a session lock phase (screensaver was running on the other screen). I had to reboot to make the laptop's screen come back, only to have it flicker. Bernard (Beer) Rosset https://rosset.net/ ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] Screen flickering
On Thursday 08 April 2021 at 16:37:54, Bernard Rosset via Dng wrote: > Recently the screen of a Dell Latitude 7400 laptop I have (which is > running Devuan) started flickering. > What else is there to try? I would boot from an installation USB / CD (preferably the one you set the machine up from) and go into Rescue Mode, and see whether the hardware still continues behaving the same way. That means you're testing it with the versions of kernel / modules / boot loader / etc as you did when you set it up, without any updates. Regards, Antony. -- There are two possible outcomes: If the result confirms the hypothesis, then you've made a measurement. If the result is contrary to the hypothesis, then you've made a discovery. - Enrico Fermi Please reply to the list; please *don't* CC me. ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] Screen flickering
Anno domini 2021 Thu, 8 Apr 16:40:06 +0200 Bernard Rosset via Dng scripsit: > Something I guess is important that I forgot to add: > > The flicker started happening after the screen went black during a > session lock phase (screensaver was running on the other screen). > I had to reboot to make the laptop's screen come back, only to have it > flicker. > > Bernard (Beer) Rosset > https://rosset.net/ > ___ > Dng mailing list > Dng@lists.dyne.org > https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng > When connected to an external monitor, does that monitor show the flickering, too? Nik -- Please do not email me anything that you are not comfortable also sharing with the NSA, CIA ... ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] Screen flickering
When connected to an external monitor, does that monitor show the flickering, too? That is my case already: I am using the internal display + an extra one. No sign of trouble on the external one. Bernard (Beer) Rosset https://rosset.net/ ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] Screen flickering
Anno domini 2021 Thu, 8 Apr 16:59:40 +0200 Bernard Rosset via Dng scripsit: > > When connected to an external monitor, does that monitor show the > > flickering, too? > > That is my case already: I am using the internal display + an extra one. > No sign of trouble on the external one. Most likely a dying backlight or a broken cable. Nik > > Bernard (Beer) Rosset > https://rosset.net/ > ___ > Dng mailing list > Dng@lists.dyne.org > https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng > -- Please do not email me anything that you are not comfortable also sharing with the NSA, CIA ... ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] Screen flickering
I would boot from an installation USB / CD (preferably the one you set the machine up from) and go into Rescue Mode, and see whether the hardware still continues behaving the same way. That means you're testing it with the versions of kernel / modules / boot loader / etc as you did when you set it up, without any updates. Good idea! I just did that on the latest Devuan Beowulf Live distro (kernel 4.19.0-14), and... no flickering! Kinda a relief, if you ask me... Now, where to start to look for the software defect? Bernard (Beer) Rosset https://rosset.net/ ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] Screen flickering
I would boot from an installation USB / CD (preferably the one you set the machine up from) and go into Rescue Mode, and see whether the hardware still continues behaving the same way. I just did that on the latest Devuan Beowulf Live distro (kernel 4.19.0-14), and... no flickering! Booting back on the internal disk... No flickering. I just don't get it. Would it be hardware/cable-related in the end? *sighs* Bernard (Beer) Rosset https://rosset.net/ ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
[DNG] SSL certificate or host mapping for ASCII updates for APT not right
I'm trying to 'apt update' an ascii box, and the repos in the apt source list point here: deb http://us.deb.devuan.org/merged ascii main non-free contrib deb http://us.deb.devuan.org/merged ascii-security main non-free contrib deb http://us.deb.devuan.org/merged ascii-updates main non-free contrib deb-src http://us.deb.devuan.org/merged ascii main non-free contrib deb-src http://us.deb.devuan.org/merged ascii-security main non-free contrib deb-src http://us.deb.devuan.org/merged ascii-updates main non-free contrib So. apt fails, and trying https://us.deb.devuan.org in a browser fails with certificate errors. wget for http: works, but https: also fails with certificate errors. /tmp# wget https://us.deb.devuan.org --2021-04-08 08:15:13-- https://us.deb.devuan.org/ Resolving us.deb.devuan.org (us.deb.devuan.org)... 152.228.204.144 Connecting to us.deb.devuan.org (us.deb.devuan.org)|152.228.204.144|:443... connected. The certificate's owner does not match hostname 'us.deb.devuan.org' This is a bit of the certificate info: /tmp# echo -n | openssl s_client -connect us.deb.devuan.org:443 Certificate chain 0 s:/CN=archive.devuan.org i:/C=US/O=Let's Encrypt/CN=R3 1 s:/C=US/O=Let's Encrypt/CN=R3 i:/O=Digital Signature Trust Co./CN=DST Root CA X3 https://archive.devuan.org does work and appears to list rational things, but not what's needed. Both hosts resolve to the same ip address: tmp# host archive.devuan.org archive.devuan.org has address 152.228.204.144 tmp# host us.deb.devuan.org us.deb.devuan.org is an alias for pkgmaster.devuan.org. pkgmaster.devuan.org has address 152.228.204.144 This seems to have changed in the last week or two. Thx, Chris ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] SSL certificate or host mapping for ASCII updates for APT not right
On 08/04/21 16:40, crich...@blackfoot.net wrote: I’m trying to ‘apt update’ an ascii box, and the repos in the aptsource list point here: deb http://us.deb.devuan.org/merged ascii main non-free contrib I think that "country mirrors" are deprecated, try using just deb.devuan.org Bye! ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] Screen flickering
On Thursday 08 April 2021 at 17:26:42, Bernard Rosset via Dng wrote: > >> I would boot from an installation USB / CD (preferably the one you set > >> the > >> machine up from) and go into Rescue Mode, and see whether the hardware > >> still > >> continues behaving the same way. > > > > I just did that on the latest Devuan Beowulf Live distro (kernel > > 4.19.0-14), and... no flickering! > > Booting back on the internal disk... No flickering. > I just don't get it. Would it be hardware/cable-related in the end? > *sighs* I would say yes, it sounds like a dodgy cable / solder joint / connector to me. If you have a spare external keyboard, try using the machine with that for a while, so that you're working on the machine without actually touching it and causing any vibration. I suspect there's a cable between the mainboard and the display which is losing connectivity from time to time, and I would guess that that's most likely caused by you actually typing on the keyboard. As for a repair, I have no idea what it's like trying to get inside Dell laptops. Other makes which I've attacked with screwdrivers in the past have ranged from trivial to challenging, especially when some allow you to take a cover off and immediately see the mainboard; others require you to go in from the other side and remove almost everything from the machine before you can get to the board. I wish you luck, but at least you can be grateful it's not an Apple. Antony. -- In Heaven, the beer is Belgian, the chefs are Italian, the supermarkets are British, the mechanics are German, the lovers are French, the entertainment is American, and everything is organised by the Swiss. In Hell, the beer is American, the chefs are British, the supermarkets are German, the mechanics are French, the lovers are Swiss, the entertainment is Belgian, and everything is organised by the Italians. Please reply to the list; please *don't* CC me. ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
[DNG] Gnome 3 Status
Hello Everyone! Somehow all this systemd buzz flew behind me, so it's a pity that I discovered all drawbacks that it has recently. Which lead me to understand that it's not an init system that I want. It's nice to see that here, a lot of people are doing the right thing, from my point of view. My own preference is 3rd Gnome. I can't see it in the official supported desktop environments list for the Beowulf release, but my testing in virtual machine shows that it works. Could you please advise me if it's stable enough to use it on a daily basis? Thank you. -- Best Regards, Mate ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] SSL certificate or host mapping for ASCII updates for APT
On 2021-04-08 15:32, Joril wrote: > On 08/04/21 16:40, crichmon@??? wrote: > > I'm trying to 'apt update' an ascii box, and the repos in the aptsource > > list point here: > > > > deb http://us.deb.devuan.org/merged ascii main non-free contrib > > I think that "country mirrors" are deprecated, try using just deb.devuan.org Actually, I did already try that after reading the docs on the web again, and get the same problems using the same debugging tools. Sparing the details. /tmp# host deb.devuan.org deb.devuan.org is an alias for deb.roundr.devuan.org. Trying to browse http://deb.devuan.org/ still fails. What I hadn't tried was 'apt update', which I'm doing now after updating sources.list, and it is working, so apt doesn't exactly have the same cert issues. Thx, Chris ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] Gnome 3 Status
Hi Mate, On ven, 09 avr 2021, Mate via Dng wrote: > My own preference is 3rd Gnome. I can't see it in the official > supported desktop environments list for the Beowulf release, but my > testing in virtual machine shows that it works. > > Could you please advise me if it's stable enough to use it on a daily > basis? > To disperse a misconception that you may have, devuan is solely debian but without systemd. As such, any software not on the list of [banned package][0] should work as is. AFAIK the issue with Gnome is that it relies heavily on systemd components. Thus the choice to not propose it by default. However it should work just work by using elogind instead of consolekit. Bests, Ludovic [0]: http://deb.devuan.org/bannedpackages.txt signature.asc Description: PGP signature ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
Re: [DNG] Gnome 3 Status
Mate via Dng said on Fri, 09 Apr 2021 00:23:29 +0300 >My own preference is 3rd Gnome. What would Gnome give you that you can't get from other Window Managers and Desktop Environments (WM/DE)? By the way, are you a touch typist who can type over 35 wpm? SteveT Steve Litt Spring 2021 featured book: Troubleshooting Techniques of the Successful Technologist http://www.troubleshooters.com/techniques ___ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
