[Ubuntu-x-swat] [Bug 781445] Re: Xorg's HAL causes Purple screen or Black Screen on GDM startup.
After talking with a lot of people since filing this and seeing that triage was going in the strange directions with this problem... I spent a lot of time doing more homework and research. I spent a lot of time on IRC # grub yesterday talking with a few of their dev's and support's. I followed their advice and... I guess we'll see where this goes: GNU GRUB - Bugs: bug #33318: Unknown process in grub 1.99~rc1 is setting and passing invalid graphics data to linux kernel and Xorg. https://savannah.gnu.org/bugs/index.php?33318 You should now be able to tie this bug (LP Bug #781445) to that Upstream Bug. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-settings in Ubuntu. https://bugs.launchpad.net/bugs/781445 Title: Xorg's HAL causes Purple screen or Black Screen on GDM startup. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 781445] Re: Xorg's HAL causes Purple screen or Black Screen on GDM startup.
Adding GRUB_GFXPAYLOAD=text to /etc/default/grub tries to over-ride the variable set gfxpayload=$linux_gfx_mode in 10_linux where GNU says that if set in the/etc/defau;t/grub : ## QUOTE ## GRUB_GFXPAYLOAD_LINUX' Set to `text' to force the Linux kernel to boot in normal text mode, `keep' to preserve the graphics mode set using `GRUB_GFXMODE', `WIDTHxHEIGHT'[`xDEPTH'] to set a particular graphics mode, or a sequence of these separated by commas or semicolons to try several modes in sequence. Depending on your kernel, your distribution, your graphics card, and the phase of the moon, note that using this option may cause GNU/Linux to suffer from various display problems, particularly during the early part of the boot sequence. If you have problems, set this option to `text' and GRUB will tell Linux to boot in normal text mode. ## END QUOTE ## Which later in 10_linux checks $linux_gfx_mode and if set to text tells the kernel not to boot graphics... (translation) This is a WORKAROUND telling the kernel not to use the GRUB_GFXMODE to set GFXTERM and not use KMS. This workaround, in essence does the same as 2 other workarounds of rolling back the kernel to 2.6.37.x or to roll back the version of Grub 1.99 to GNU Grub 1.98, in that they both them would ignor the GRUB_GFXMODE call.s All three of these workarounds circumvent around the present process by crippling it or ignoring it. A correct and closer Workaround is to set the parameters of GRUB_GFXMODE and pass them using KMS and the designed process... Which is working as a viable workaround out on the Support Forum. Setting the parameters of the video hardware and monitor manually as a workaround and having it work correctly, tells me the process does work, but it ia apparently s not being set up correctly with the right data. So the real question is: What is the process that VBE is using to query hardware when GRUB_GFXMODE is set auto? HAL? VBEPROBE / VBEINFO? Then we can check what in that process is passing bad parm's or locking up hardware. Whatever this process IS. this does seem to be where this problem seems to begin. If you leave this as saying that is the fix. then you are saying that GNU Grub 1.99, the Linux 2.6.38.x series kernel and Xorg X11R7.6 are all broke by not using the process at all. Anyone of these are all upstream, but this all affects Ubuntu (us). -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-settings in Ubuntu. https://bugs.launchpad.net/bugs/781445 Title: Xorg's HAL causes Purple screen or Black Screen on GDM startup. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 781445] Re: Xorg's HAL causes Purple screen or Black Screen on GDM startup.
Like I said. I don't have this problem on this box or my 4 other's. I do have other 2 test boxs that are currently running Oneiric Ocelot 11.10 that I could pull down to reinstall 11.04 and recreate this problem with various hardware (Intel or AMD CPU's; nvidia, ati or intel video chipsets)... Or just look out on the support forum = there's no shortage of data. As for the comment that HAL is no longer used by the xorg.conf... My xorg.conf says it is. Is it lying to me again? (attached0 Next and included in this issue is the Sandy Bridge chipsets (Dell Alienware) where the y also have NVidia SLI's or ATI Xfire's... The query process is seeing the Sandy Bridge video modes, by not going further the the other chipsets to return their data. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-settings in Ubuntu. https://bugs.launchpad.net/bugs/781445 Title: Xorg's HAL causes Purple screen or Black Screen on GDM startup. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 781445] Re: Xorg's HAL causes Purple screen or Black Screen on GDM startup.
uhm, no, Xorg doesn't use HAL for anything anymore, certainly not for setting the graphics mode. If you need to add GRUB_GFXPAYLOAD=text to /etc/default/grub, then it's a kernel bug. moving to nvidia-settings, which shouldn't add crap to the xorg.conf. ** Package changed: nvidia-graphics-drivers (Ubuntu) = nvidia-settings (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-settings in Ubuntu. https://bugs.launchpad.net/bugs/781445 Title: Xorg's HAL causes Purple screen or Black Screen on GDM startup. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 781445] Re: Xorg's HAL causes Purple screen or Black Screen on GDM startup.
I re-read edited): Timo Aaltonen wrote 14 hours ago: #4 If you need to add GRUB_GFXPAYLOAD=text to /etc/default/grub, then it's a kernel bug. As explained above-- If you manually set the variable of GRUB_GFXPAYLOAD or GFXMODE and it works... then it does not seem to be a kernel bug. Manually setting those variables and passing to the kernel verifies that the process at the kernel is working as designed. What it does point out is that the process is broken before that... Somewhere in GRUB, where it is trying to query the hardware and passing invalid data to set a mode. Manually setting that mode (GFXMODE) bypasses that process. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-settings in Ubuntu. https://bugs.launchpad.net/bugs/781445 Title: Xorg's HAL causes Purple screen or Black Screen on GDM startup. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 781445] Re: Xorg's HAL causes Purple screen or Black Screen on GDM startup.
** Package changed: xorg (Ubuntu) = nvidia-graphics-drivers (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/781445 Title: Xorg's HAL causes Purple screen or Black Screen on GDM startup. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 781445] Re: Xorg's HAL causes Purple screen or Black Screen on GDM startup.
Got sidetracked,- It causes a few different problems, but shares a common cause: Not being able to find and sett a valid graphics mode. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/781445 Title: Xorg's HAL causes Purple screen or Black Screen on GDM startup. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
[Ubuntu-x-swat] [Bug 781445] Re: Xorg's HAL causes Purple screen or Black Screen on GDM startup.
@Bugbot- This is not an nVidia thing. The happens with nVidia, ATI Radeon, i915, Sandy Bridge, etc. This causes an nVidia chip instlled consurrent with a Sandy Bridge no to be quesried and return it's mode data. Basically, it seems to be causing graphics modes data to be returned in correctly, so that an invalid graphics mode is set. Administratively-- If you would have read ths bug report thoroughly / carefully and the referred question to launchpad about how to report it... I DON'T PERSONALLY HAVE THIS PROBLEM! Which is why I asked all over about how to report this and where to report this, before I did report this, so that ithis problem would not be marked iinvalid. Remember, I've been helping people solve this problem. Instead of having one PC worth of data, I have 100's of PC's worth solved and most share a common problem. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/781445 Title: Xorg's HAL causes Purple screen or Black Screen on GDM startup. ___ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
