[Kernel-packages] [Bug 1899304] Re: AGP disablement leaves GPUs without working alternative (PCI fallback is broken), makes very-capable ATI TeraScale GPUs unusable

2020-11-05 Thread Ubuntu Foundations Team Bug Bot
** Tags added: patch -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1899304 Title: AGP disablement leaves GPUs without working alternative (PCI fallback is broken), makes very-capable

[Kernel-packages] [Bug 1899304] Re: AGP disablement leaves GPUs without working alternative (PCI fallback is broken), makes very-capable ATI TeraScale GPUs unusable

2020-11-05 Thread Thomas Debesse
See patch and comments on https://lkml.org/lkml/2020/11/5/308 Patch was rewritten in a way the message is shorter. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1899304 Title: AGP disa

[Kernel-packages] [Bug 1899304] Re: AGP disablement leaves GPUs without working alternative (PCI fallback is broken), makes very-capable ATI TeraScale GPUs unusable

2020-11-05 Thread Thomas Debesse
This reverts commit ba806f98f868ce107aa9c453fef751de9980e4af. Disabling AGP leaves some hardware without working alternative on some platforms. For example, PCI GPUs are known to be broken on K8 and K10 platforms since years: the breakage was reproduced from Linux 4.4 on Ubuntu 16.04 Xenial to Lin

[Kernel-packages] [Bug 1899304] Re: AGP disablement leaves GPUs without working alternative (PCI fallback is broken), makes very-capable ATI TeraScale GPUs unusable

2020-11-05 Thread Thomas Debesse
Before bisecting, I investigated the PCI issue: https://bugs.launchpad.net/bugs/1902795 I've faced the PCI issue before the AGP one, but it was less critical. I've submitted a patch that may fix some issues (with drawback of being non-optimal on platforms were PCI graphics are known to already wor

[Kernel-packages] [Bug 1899304] Re: AGP disablement leaves GPUs without working alternative (PCI fallback is broken), makes very-capable ATI TeraScale GPUs unusable

2020-11-04 Thread Thomas Debesse
** Tags added: kernel-bug -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1899304 Title: AGP disablement leaves GPUs without working alternative (PCI fallback is broken), makes very-cap