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Bug #554

closed

System Clock racing on 1.8.0-REL+xorg

Added by mk about 17 years ago. Updated about 15 years ago.

Status:
Closed
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
Due date:
% Done:

0%

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Description

Laptop Series: HP/Compaq nx6310
Laptop Model: RE952PA
Bug: System Clock racing on 1.8.0-REL+xorg

Procedure to reproduce bug:
1.) Install & configure xorg meta-pkg(pkgsrc_Q42006) using VESA 1024x768
graphics mode.
2.) Boot in ACPI Disabled Mode or Safe Mode
3.) startx using default window mgr (twm)

System clock is now racing & continues to race after exiting X.

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 #1

Updated by corecode about 17 years ago

ah yes, I have this as well. problem is: Xorg does its own BIOS-emulation instead of calling into the kernel to do a bios intr upcall. As a result the timer will get reprogrammed and the kernel doesn't know so it can't reset the clock. why are the BIOS doing this shit? we should either prevent everybody from mocking with this or use a different timer or leave the timer in its default setting.

cheers
simon

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 #2

Updated by dillon about 17 years ago

:ah yes, I have this as well. problem is: Xorg does its own BIOS-emulati=
:on instead of calling into the kernel to do a bios intr upcall. As a res=
:ult the timer will get reprogrammed and the kernel doesn't know so it can=
:'t reset the clock. why are the BIOS doing this shit? we should either =
:prevent everybody from mocking with this or use a different timer or leav=
:e the timer in its default setting.
:
:cheers
: simon

It is a serious problem with a lot of video bioses.  I can only 
    recommend that people not use VESA modes at all when trying to run
    X.
-Matt
                    Matthew Dillon 
                    <>
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