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deepforest

Member

Registered: 2020-03-24

Posts: 354  

Ceres, legacy nvidia 340.108 driver ruins running Qt software

On Ceres same situation that at Sid

https://unix.stackexchange.com/question … t-software

With nouveau all working good. But after installing legacy 340.108 nvidia driver for my gf9800 i have Segmentation Fault at launching all Qt GUI software. And opposite, Qt works again after uninstalling nvidia driver.

But very strange that if i run Qt soft via debugging tools such gdb or strace i have no errors.

gdb ./doomseeker
strace ./doomseeker

Same is with Qbittorrent
https://i.stack.imgur.com/ehbCm.png

and 2048-Qt
https://i.stack.imgur.com/OTV6q.png

Only two Qt application starting normally - CMake GUI and Audacious Qt theme

Segmentation fault

#include <QApplication>
int main(int argc, char **argv)
{
  QApplication app(argc, argv);
  return 0;
}

Who can fix this? Debian or Qt developers?

Last edited by deepforest (2023-02-14 00:45:59)

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-=linux its buggy crap that have no antifool protection (c)=-
*linux is free software, and comes with ABSOLUTELY NO WARRANTY*
+ALL YOURS ACTIONS at Linux YOU DO at YOUR OWN RISK!+

F_Sauce

Member

From: Noreg

Registered: 2017-07-07

Posts: 87  

Re: Ceres, legacy nvidia 340.108 driver ruins running Qt software

Hello

Maybe worth a try perhaps: https://www.nvidia.com/Download/Find.aspx?lang=en-uk, downgrade driver version?

Olav

PS
What desktop environment are you on by the way?

Last edited by F_Sauce (2023-02-17 18:28:26)

F_Sauce

Member

From: Noreg

Registered: 2017-07-07

Posts: 87  

Re: Ceres, legacy nvidia 340.108 driver ruins running Qt software

According to this thread: https://forums.linuxmint.com/viewtopic. … 3&start=20 it might be the Kernel which has to be downgraded if you insist on getting that card working properly with NVIDIAs drivers (any), (I read through it very briefly so might have missed something).

Last edited by F_Sauce (2023-02-17 18:39:33)

F_Sauce

Member

From: Noreg

Registered: 2017-07-07

Posts: 87  

Re: Ceres, legacy nvidia 340.108 driver ruins running Qt software

I had a look at the thread mentioned above, and it is now marked as solved. Couple of new threads which i didn't really read through, but if you're still at it it may be worthwhile.

Cheers,
Olav

deepforest

Member

Registered: 2020-03-24

Posts: 354  

Re: Ceres, legacy nvidia 340.108 driver ruins running Qt software

340.108 last legacy supported driver by linux for this GPU

thouse was my thread at mint forum and there problem was not with Qt

make bug report
https://bugs.debian.org/cgi-bin/bugrepo … ug=1031489   

ps Olav,  anyway thank you for attention for my question

Last edited by deepforest (2023-02-20 23:16:34)

---

-=linux its buggy crap that have no antifool protection (c)=-
*linux is free software, and comes with ABSOLUTELY NO WARRANTY*
+ALL YOURS ACTIONS at Linux YOU DO at YOUR OWN RISK!+