Re: [qubes-users] Screen corruption on nvidia
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On 2016-08-22 08:19, johnyju...@sigaint.org wrote: >> Added testing repos to (clones of) debian-23 and debian-8 templates (as >> well as whonix-gw/whonix-ws), did upgrades/dist-updates, restarted, >> loaded up a bunch of AppVM's, and have been pounding on things awhile. >> >> No sign of screen garbage yet! :) >> >> Looks promising. > > Day 3 of banging on r3.2-testing, and zero sign of any screen corruption. > > I think it's safe to mark this one as fixed. > > JJ > > Thanks for testing and letting us know! :) - -- Andrew David Wong (Axon) Community Manager, Qubes OS https://www.qubes-os.org -BEGIN PGP SIGNATURE- iQIcBAEBCgAGBQJXux/gAAoJENtN07w5UDAwzX0P/1imJfQfBAPIbzo/padV2GqD mgojWck235Hp7ojArkT8YO1c6FsLsbdgUfTYH2GbUcOTpYnpg5LC4MK/KtB3NNUh r8VRS9AvjAO8jaFu9j/C3+14+PXG96/YvTzviiT9dSx24QuXW8QTWutz9WANQnqZ p0HhcBAf2Pfpv4H99Qu4i89p53YM8lgHcyYwhYiV7EuZu1aehRLvz5g7i9/IJ3Wi EwvGpMsFBD8r317R/xzbrzhJXfdTt676pb7mQZDIHQUA9zSD2HjuBjo0dWa0vYd0 BsWUmOHnU70et4D3JJ7QSXEky0j5bhUipXL8F93paLes0M1wOJXr/UUIDPIX0K7M j5l0JTLkF/5ygnm0Bym8fqLKnarlkrpE4zSgZB4RzQ4NqpWvQ4et0deZy8TuW3Eu cqs3yNFun+U5wvC72QF5oc+taEh9+cDz1zNvgcL+TzfeSQX/wdjjI8an26DDPKXC wS4a/cVYyzMgD3zXdDkBifl/IJtoIZ+T5zY+vus0NiCnKtLVXfeBrkH4gtIuN3jU M4UPsHIXI6g47CYIrhSneAZJNS4bJNBBARqjl2cr6in7sSgT/aaH0sPh/9HBHoeN aanh3oeoXke1xK+3c8rVcr4sMo3lMJQ4P2MTiGyQ/fxvF1plW2ZH2DymdfAcW/Kq 7q8Ryxs4QzxEeeAVdN24 =xHjg -END PGP SIGNATURE- -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/e3b20335-d54b-a123-319f-d515961a83cc%40qubes-os.org. For more options, visit https://groups.google.com/d/optout.
Re: [qubes-users] Screen corruption on nvidia
> Added testing repos to (clones of) debian-23 and debian-8 templates (as > well as whonix-gw/whonix-ws), did upgrades/dist-updates, restarted, loaded > up a bunch of AppVM's, and have been pounding on things awhile. > > No sign of screen garbage yet! :) > > Looks promising. Day 3 of banging on r3.2-testing, and zero sign of any screen corruption. I think it's safe to mark this one as fixed. JJ -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/1be991f810cc2019d7e056e5749c0504.webmail%40localhost. For more options, visit https://groups.google.com/d/optout.
Re: [qubes-users] Screen corruption on nvidia
>> Several packages were recently pushed to testing repos (see >> qubes-buider-github comments on the issue). Have you had a chance to try >> those? > > Cool, I will grab the latest qubes-gui-vm from current-testing and see if > that helps. Sorry, that was phrased wrong, and I hate to add any confusion for anyone. (I really should read more carefully before posting.) I see the updated packages are for qubes-gui-agent's in the fedora/debian templates. Will grab those, fire up several AppVM's, and see if things improve. Cheers. JJ -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/65abe7794d0822f9a2387a7a4b96b804.webmail%40localhost. For more options, visit https://groups.google.com/d/optout.
Re: [qubes-users] Screen corruption on nvidia
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 On 2016-08-18 04:44, johnyju...@sigaint.org wrote: > This problem persists in 3.2rc2. > > JJ > Several packages were recently pushed to testing repos (see qubes-buider-github comments on the issue). Have you had a chance to try those? P.S. - Please keep the list CCed and try not to top-post. However, under Qubes, I experience random screen corruption. See: https://i.imgur.com/ovEFgYO.png >> >>> Looks like it could be this issue: >>> >>> https://github.com/QubesOS/qubes-issues/issues/1028 >>> >>> As you can see from the qubes-builder-github comments, some patches >>> for this are already in the testing repos. You may want to give those a >>> try. >> >> Awesome! Will give that a shot. Thanks for the reply! :) >> - -- Andrew David Wong (Axon) Community Manager, Qubes OS https://www.qubes-os.org -BEGIN PGP SIGNATURE- iQIcBAEBCgAGBQJXt00bAAoJENtN07w5UDAwsmMP/1sY/IiuOY8smMwFNWJlekd7 N/296EgTEN0Q/r5VJWMyXIHcwXoLFRk3aKBoUoCXoRPRAD2Zyl6oQOMjx9oZhL7V AYSrFaGe9LWVYsoYfutYboz+ajMpFnxkR4mjHaaSe1vRdmzzyzF81bC2Bnn7j2Mh IuNM7MdKSaCsjD+dzfyLQWvoGVsCzy43yilXTkVsDwc93XXUmGv3CLyhY4ywPFAw HsNHRM6jtXIeS7FAGOe8/uqRtPR0yUDwnQgTaCoCF38oFvFsHpUzlwlfl7YGQ9ce lBb/fNkVoArKW6HnzoLC4ZWjDl8TeStjiuVCmJ+6QjwXI15+iSLpC+ejHXOaHsxj lqaGQrEzOq7v5vTVUM2zMxR3M9Um53245ivEHCBX3a13KMSm7/ocoaA0+St74Ju7 zLjSL5hFivZ9rg0FAjZeFv9R8lJvZVR+9PeDUbhtguEH4p2cUikNngyprtcNl1Fs 6FOJmBDicNBO1f1uQfigowxI/cVITrqMgcOzgpX2i0ZSN+iKvlWHCsU78M5U1o2Z DM9kmC+BZLndVC4ooUlvMV8Fk8uPZ5IcBxlZ6rd0+wXsHoq8wfQJdaUiJf3azWGI w4uNdKk4IgCjoTMBlQEuoxrsNUeSa690ujARZNbEPqV2hL1VeEMumG1OMOVVw/5V rFKNdEU75fu+WpYL2HGQ =mf2l -END PGP SIGNATURE- -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/f381a671-6a75-1cb6-9265-66f5b737e4d5%40qubes-os.org. For more options, visit https://groups.google.com/d/optout.
Re: [qubes-users] Screen corruption on nvidia
However, under Qubes, I experience random screen corruption. See: https://i.imgur.com/ovEFgYO.png > This problem persists in 3.2rc2. > > JJ Actually, just FYI, the behavior seems to be a lot better under 3.2rc2. I've only seen it a couple of times, versus seeing it consistently under 3.1. -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/0016acf00ca3d64f97e679c8d40277ee.webmail%40localhost. For more options, visit https://groups.google.com/d/optout.
Re: [qubes-users] Screen corruption on nvidia
This problem persists in 3.2rc2. JJ >>> However, under Qubes, I experience random screen corruption. >>> >>> See: https://i.imgur.com/ovEFgYO.png > >> Looks like it could be this issue: >> >> https://github.com/QubesOS/qubes-issues/issues/1028 >> >> As you can see from the qubes-builder-github comments, some patches for this >> are already in the testing repos. You may want to give those a try. > > Awesome! Will give that a shot. Thanks for the reply! :) > > -- > You received this message because you are subscribed to the Google Groups "qubes-users" group. > To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. > To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit > https://groups.google.com/d/msgid/qubes-users/2380dfd0340bdf4025341dff82056852.webmail%40localhost. For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/dba3a9f5755b9793d82e810521492df3.webmail%40localhost. For more options, visit https://groups.google.com/d/optout.
Re: [qubes-users] Screen corruption on nvidia
>> However, under Qubes, I experience random screen corruption. >> >> See: https://i.imgur.com/ovEFgYO.png > Looks like it could be this issue: > > https://github.com/QubesOS/qubes-issues/issues/1028 > > As you can see from the qubes-builder-github comments, some patches for > this > are already in the testing repos. You may want to give those a try. Awesome! Will give that a shot. Thanks for the reply! :) -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/2380dfd0340bdf4025341dff82056852.webmail%40localhost. For more options, visit https://groups.google.com/d/optout.
[qubes-users] Screen corruption on nvidia
I realize that nVidia's aren't the preferred video card, but (being divorce-poor) one sometimes has to make do with what one has. :) With my on-board nVidia (GeForce7100) and the nouveau driver (on both Tails and Qubes), things work okay, then suddenly at some random point the screen gets filled with diagonal line garbage, and things are unresponsive. (The system seems to still be running, but the screen is pooched and keyboard seems unresponsive, and no Alt-F1'ing or whatever will get it back. Processes still seem to be running though, and the ethernet light is blinking normally as traffic goes in an out, etc.) So I put in a PCI card, nVidia Geforce 7300, which seems solid, works perfectly under Tails. However, under Qubes, I experience random screen corruption. See: https://i.imgur.com/ovEFgYO.png It's usually fewer horizontal lines than in that snap, but I thought I'd include an extreme example to show the problem. It usually happens when the system is a bit busier CPU-wise/memory-wise, but otherwise functioning fine. Moving the window, or switching to another window and back, clears up the corruption. Screen corruption like that could be a sign of some wild pointer or other memory management bug, so I thought I'd bring it up. The paranoid half of me (okay, okay, I'll admit, it's more than half) worries it might be some attempted DMA attack. (I've been, and continue to be, the subject of some rather high-end professional hacking over the years, which adds to the concern.) I've read about attacks where screen memory is used to stuff code and run it to escalate privileges. And the nature of the garbage doesn't look like mis-placed screen stuff, but code or other binary data. Thankfully, if this is the case, the corruption seems contained to the AppVM. The garbage never spills outside an AppVm's window. It happens in both Redhat-23 and Debian-8 based AppVMs. I've never seen evidence of it in dom0/Qubes Manager and such. It realize it's *probably* not an attack, but I'd like to track down the nature of the problem whether it's a bug or an attack. I've read in another thread about video corruption caused by accessing memory who page has moved, and "echo 0 >/proc/sys/vm/compact_unevictable_allowed" supposedly helps. At first, I thought that made a difference, but ultimately, the problem is still there. Any ideas on what I can try, short of giving up and hunting down an ATI card or the like? (I might try the proprietary nVidia drivers when I get a chance to compile them. Not comfortable with grabbing binary versions for obvious reasons.) Thanks. You guys rock! -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/d571d11b44eaab879857416904323581.webmail%40localhost. For more options, visit https://groups.google.com/d/optout.