[Bug 111297] New: xorg hangs at boot only with vesa driver and quiet kernel parameter

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111297

            Bug ID: 111297
           Summary: xorg hangs at boot only with vesa driver and quiet
                    kernel parameter
           Product: xorg
           Version: git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: Driver/intel
          Assignee: chris at chris-wilson.co.uk
          Reporter: linguafalsa at gmail.com
        QA Contact: intel-gfx-bugs at lists.freedesktop.org

Created attachment 144949
  --> https://bugs.freedesktop.org/attachment.cgi?id=144949&action=edit
dmesg output

lspci -v 

00:02.0 VGA compatible controller: Intel Corporation Core Processor Integrated
Graphics Controller (rev 02) (prog-if 00 [VGA controller])
        Subsystem: Lenovo Core Processor Integrated Graphics Controller
        Flags: bus master, fast devsel, latency 0, IRQ 32
        Memory at f2000000 (64-bit, non-prefetchable) [size=4M]
        Memory at d0000000 (64-bit, prefetchable) [size=256M]
        I/O ports at 1800 [size=8]
        [virtual] Expansion ROM at 000c0000 [disabled] [size=128K]
        Capabilities: <access denied>
        Kernel driver in use: i915
        Kernel modules: i915

Model name: Intel(R) Core(TM) i5 CPU       M 520  @ 2.40GHz



This started with 5.2 and still goes on with 5.2.5

If the 'quiet' kernel parameter is omitted, the system starts normally. 

If it's not omitted, then it's a hard hang, and X wouldn't start.

It also works fine after a wakeup by suspending the system.

Disabling wireless connection from the bios made no difference. Only enabling
log messages on the kernel parameter does. 

Also, video-intel seems not affected by this.

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