Re: nomodeset kernel parameter appears to cause startx failure

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On Sun, 2024-10-06 at 15:26 +0100, Sérgio Basto wrote:
> On Sat, 2024-10-05 at 13:52 -0700, Adam Williamson wrote:
> > On Sat, 2024-10-05 at 19:32 +0100, Sérgio Basto wrote:
> > > On Sat, 2024-10-05 at 17:26 +0000, George R Goffe via test wrote:
> > > > Hi,
> > > > 
> > > > I've been having a consistent failure of startx apparently due to
> > > > the
> > > > addition of "nomodeset" to the kernel boot parameters. I have
> > > > been
> > > > using "nomodeset" for several years. This has been happening for
> > > > about 2 weeks. See startx log below.
> > > > 
> > > > Has anyone else seen this problem?
> > > > 
> > > 
> > > 
> > > we drop int10 everywhere and obsolete vesa and fbdev X drivers [1] 
> > > 
> > > if is related please try 21.1.13-3
> > > https://koji.fedoraproject.org/koji/buildinfo?buildID=2556149
> > > 
> > > also need to check if you got vesa and fbdev installed 
> > 
> > What xorg driver is expected to be used now with nomodeset, if not
> > vesa
> > or fbdev?
> 
> I tried keep int10 etc , but the argument was that everything was
> replaced by modesetting and simpledrm and RHEL already removed int10 
> 
> https://fedoraproject.org/wiki/Changes/ReplaceFbdevDrivers#Detailed_Description

I have to admit I didn't quite understand this justification, since
that change is from several releases ago and the scope says nothing
about removing X.org drivers....

> so I guess nomodeset option also should be remove from the kernel
> because now is useless , unless George or someone else show that still
> be useful , i.e. simpledrm doesn't replace it .  

Well, I know it's still sometimes used if e.g. you have a very new
NVIDIA card that the nouveau driver is confused by. Is there a
different option that should now be used in such a case to force the
use of simpledrm instead of a native driver?
-- 
Adam Williamson (he/him/his)
Fedora QA
Fedora Chat: @adamwill:fedora.im | Mastodon: @adamw@xxxxxxxxxxxxx
https://www.happyassassin.net




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