YellowGrass

kde broken on graphical iso (1)

When running nixos-0.1pre25451-i686-linux.iso (at least on qemu) after starting the xserver, and logging in as root, the KDE startup sequence proceeds but the KDE desktop does not come up. Instead you just get a black screen with a black cursor.

Submitted by Russell O'Connor on 8 January 2011 at 22:47

Issue Log

On 8 January 2011 at 23:01 Cillian de Róiste tagged !goibhniu
On 20 January 2011 at 18:47 Eelco Dolstra commented:

Seems to be a compositing problem in KDE, probably due to the Cirrus video driver used under QEMU. Pressing “alt-shift-f12” disables compositing and fixes the black screen.

It’s not clear to me why KDE would try to do compositing on a video driver that doesn’t support it.

On 21 January 2011 at 14:38 Eelco Dolstra commented:

Workaround in r25659.

On 17 February 2011 at 11:44 Eelco Dolstra commented:

It seems that we should disable the swrast_dri.so module in Mesa. In the Nixpkgs trunk it causes the black screen described in this issue, and in the x-updates branch it causes the X server to segfault.

On 7 March 2011 at 12:11 Eelco Dolstra commented:

See also https://bugs.freedesktop.org/show_bug.cgi?id=31579

On 15 March 2011 at 09:39 Eelco Dolstra commented:

r26281 introduces a patch to KDE that disables compositing with the software renderer.

On 15 March 2011 at 09:39 Eelco Dolstra closed this issue.

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